diff options
96 files changed, 672 insertions, 876 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 75dd23acf133..e30c3fa343bd 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -874,6 +874,21 @@ config OLD_SIGACTION config COMPAT_OLD_SIGACTION bool +config 64BIT_TIME + def_bool ARCH_HAS_64BIT_TIME + help + This should be selected by all architectures that need to support + new system calls with a 64-bit time_t. This is relevant on all 32-bit + architectures, and 64-bit architectures as part of compat syscall + handling. + +config COMPAT_32BIT_TIME + def_bool (!64BIT && 64BIT_TIME) || COMPAT + help + This enables 32 bit time_t support in addition to 64 bit time_t support. + This is relevant on all 32-bit architectures, and 64-bit architectures + as part of compat syscall handling. + config ARCH_NO_COHERENT_DMA_MMAP bool diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild index 9b68790013e2..0580cb8c84b2 100644 --- a/arch/alpha/include/asm/Kbuild +++ b/arch/alpha/include/asm/Kbuild @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 +generic-y += compat.h generic-y += exec.h generic-y += export.h generic-y += fb.h diff --git a/arch/alpha/include/uapi/asm/Kbuild b/arch/alpha/include/uapi/asm/Kbuild index 9afaba5e5503..1a5b75310cf4 100644 --- a/arch/alpha/include/uapi/asm/Kbuild +++ b/arch/alpha/include/uapi/asm/Kbuild @@ -2,4 +2,8 @@ include include/uapi/asm-generic/Kbuild.asm generic-y += bpf_perf_event.h +generic-y += ipcbuf.h +generic-y += msgbuf.h generic-y += poll.h +generic-y += sembuf.h +generic-y += shmbuf.h diff --git a/arch/alpha/include/uapi/asm/ipcbuf.h b/arch/alpha/include/uapi/asm/ipcbuf.h deleted file mode 100644 index 90d6445a14df..000000000000 --- a/arch/alpha/include/uapi/asm/ipcbuf.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/ipcbuf.h> diff --git a/arch/alpha/include/uapi/asm/msgbuf.h b/arch/alpha/include/uapi/asm/msgbuf.h deleted file mode 100644 index 8c5d4d8c1b16..000000000000 --- a/arch/alpha/include/uapi/asm/msgbuf.h +++ /dev/null @@ -1,28 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ALPHA_MSGBUF_H -#define _ALPHA_MSGBUF_H - -/* - * The msqid64_ds structure for alpha architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ - __kernel_time_t msg_rtime; /* last msgrcv time */ - __kernel_time_t msg_ctime; /* last change time */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _ALPHA_MSGBUF_H */ diff --git a/arch/alpha/include/uapi/asm/sembuf.h b/arch/alpha/include/uapi/asm/sembuf.h deleted file mode 100644 index f28ffa668b2f..000000000000 --- a/arch/alpha/include/uapi/asm/sembuf.h +++ /dev/null @@ -1,23 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ALPHA_SEMBUF_H -#define _ALPHA_SEMBUF_H - -/* - * The semid64_ds structure for alpha architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ - __kernel_time_t sem_ctime; /* last change time */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _ALPHA_SEMBUF_H */ diff --git a/arch/alpha/include/uapi/asm/shmbuf.h b/arch/alpha/include/uapi/asm/shmbuf.h deleted file mode 100644 index 7e041ca2eb40..000000000000 --- a/arch/alpha/include/uapi/asm/shmbuf.h +++ /dev/null @@ -1,39 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ALPHA_SHMBUF_H -#define _ALPHA_SHMBUF_H - -/* - * The shmid64_ds structure for alpha architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - __kernel_time_t shm_dtime; /* last detach time */ - __kernel_time_t shm_ctime; /* last change time */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused1; - unsigned long __unused2; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _ALPHA_SHMBUF_H */ diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild index 4bd5d4369e05..d51bc22e8795 100644 --- a/arch/arc/include/asm/Kbuild +++ b/arch/arc/include/asm/Kbuild @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 generic-y += bugs.h +generic-y += compat.h generic-y += device.h generic-y += div64.h generic-y += emergency-restart.h diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild index 873e3c189279..1d66db9c9db5 100644 --- a/arch/arm/include/asm/Kbuild +++ b/arch/arm/include/asm/Kbuild @@ -1,3 +1,4 @@ +generic-y += compat.h generic-y += current.h generic-y += early_ioremap.h generic-y += emergency-restart.h diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index c00c62e1a4a3..1a037b94eba1 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -34,7 +34,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u16 __compat_uid_t; @@ -66,16 +65,6 @@ typedef u32 compat_ulong_t; typedef u64 compat_u64; typedef u32 compat_uptr_t; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { #ifdef __AARCH64EB__ short st_dev; @@ -192,10 +181,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - compat_time_t sem_otime; - compat_ulong_t __unused1; - compat_time_t sem_ctime; - compat_ulong_t __unused2; + compat_ulong_t sem_otime; + compat_ulong_t sem_otime_high; + compat_ulong_t sem_ctime; + compat_ulong_t sem_ctime_high; compat_ulong_t sem_nsems; compat_ulong_t __unused3; compat_ulong_t __unused4; @@ -203,12 +192,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - compat_time_t msg_stime; - compat_ulong_t __unused1; - compat_time_t msg_rtime; - compat_ulong_t __unused2; - compat_time_t msg_ctime; - compat_ulong_t __unused3; + compat_ulong_t msg_stime; + compat_ulong_t msg_stime_high; + compat_ulong_t msg_rtime; + compat_ulong_t msg_rtime_high; + compat_ulong_t msg_ctime; + compat_ulong_t msg_ctime_high; compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; compat_ulong_t msg_qbytes; @@ -221,12 +210,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; compat_size_t shm_segsz; - compat_time_t shm_atime; - compat_ulong_t __unused1; - compat_time_t shm_dtime; - compat_ulong_t __unused2; - compat_time_t shm_ctime; - compat_ulong_t __unused3; + compat_ulong_t shm_atime; + compat_ulong_t shm_atime_high; + compat_ulong_t shm_dtime; + compat_ulong_t shm_dtime_high; + compat_ulong_t shm_ctime; + compat_ulong_t shm_ctime_high; compat_pid_t shm_cpid; compat_pid_t shm_lpid; compat_ulong_t shm_nattch; diff --git a/arch/arm64/include/asm/stat.h b/arch/arm64/include/asm/stat.h index 15e35598ac40..eab738019707 100644 --- a/arch/arm64/include/asm/stat.h +++ b/arch/arm64/include/asm/stat.h @@ -20,6 +20,7 @@ #ifdef CONFIG_COMPAT +#include <linux/compat_time.h> #include <asm/compat.h> /* diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c index 74bb56f656ef..413dbe530da8 100644 --- a/arch/arm64/kernel/hw_breakpoint.c +++ b/arch/arm64/kernel/hw_breakpoint.c @@ -30,7 +30,6 @@ #include <linux/smp.h> #include <linux/uaccess.h> -#include <asm/compat.h> #include <asm/current.h> #include <asm/debug-monitors.h> #include <asm/hw_breakpoint.h> diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c index 1d091d048d04..0bbac612146e 100644 --- a/arch/arm64/kernel/perf_regs.c +++ b/arch/arm64/kernel/perf_regs.c @@ -1,11 +1,11 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/compat.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/perf_event.h> #include <linux/bug.h> #include <linux/sched/task_stack.h> -#include <asm/compat.h> #include <asm/perf_regs.h> #include <asm/ptrace.h> diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild index fd4c840de837..24037486317c 100644 --- a/arch/c6x/include/asm/Kbuild +++ b/arch/c6x/include/asm/Kbuild @@ -1,6 +1,7 @@ generic-y += atomic.h generic-y += barrier.h generic-y += bugs.h +generic-y += compat.h generic-y += current.h generic-y += device.h generic-y += div64.h diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild index 14bac06b7116..a5d0b2991f47 100644 --- a/arch/h8300/include/asm/Kbuild +++ b/arch/h8300/include/asm/Kbuild @@ -3,6 +3,7 @@ generic-y += barrier.h generic-y += bugs.h generic-y += cacheflush.h generic-y += checksum.h +generic-y += compat.h generic-y += current.h generic-y += delay.h generic-y += device.h diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild index e9743f689fb8..dd2fd9c0d292 100644 --- a/arch/hexagon/include/asm/Kbuild +++ b/arch/hexagon/include/asm/Kbuild @@ -2,6 +2,7 @@ generic-y += barrier.h generic-y += bug.h generic-y += bugs.h +generic-y += compat.h generic-y += current.h generic-y += device.h generic-y += div64.h diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild index 6dd867873364..557bbc8ba9f5 100644 --- a/arch/ia64/include/asm/Kbuild +++ b/arch/ia64/include/asm/Kbuild @@ -1,3 +1,4 @@ +generic-y += compat.h generic-y += exec.h generic-y += irq_work.h generic-y += mcs_spinlock.h diff --git a/arch/ia64/include/uapi/asm/Kbuild b/arch/ia64/include/uapi/asm/Kbuild index c0527cfc48f0..3982e673e967 100644 --- a/arch/ia64/include/uapi/asm/Kbuild +++ b/arch/ia64/include/uapi/asm/Kbuild @@ -2,5 +2,9 @@ include include/uapi/asm-generic/Kbuild.asm generic-y += bpf_perf_event.h +generic-y += ipcbuf.h generic-y += kvm_para.h +generic-y += msgbuf.h generic-y += poll.h +generic-y += sembuf.h +generic-y += shmbuf.h diff --git a/arch/ia64/include/uapi/asm/ipcbuf.h b/arch/ia64/include/uapi/asm/ipcbuf.h deleted file mode 100644 index 90d6445a14df..000000000000 --- a/arch/ia64/include/uapi/asm/ipcbuf.h +++ /dev/null @@ -1,2 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#include <asm-generic/ipcbuf.h> diff --git a/arch/ia64/include/uapi/asm/msgbuf.h b/arch/ia64/include/uapi/asm/msgbuf.h deleted file mode 100644 index aa25df92d9dc..000000000000 --- a/arch/ia64/include/uapi/asm/msgbuf.h +++ /dev/null @@ -1,28 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_IA64_MSGBUF_H -#define _ASM_IA64_MSGBUF_H - -/* - * The msqid64_ds structure for IA-64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ - __kernel_time_t msg_rtime; /* last msgrcv time */ - __kernel_time_t msg_ctime; /* last change time */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _ASM_IA64_MSGBUF_H */ diff --git a/arch/ia64/include/uapi/asm/sembuf.h b/arch/ia64/include/uapi/asm/sembuf.h deleted file mode 100644 index 6ed058760afc..000000000000 --- a/arch/ia64/include/uapi/asm/sembuf.h +++ /dev/null @@ -1,23 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_IA64_SEMBUF_H -#define _ASM_IA64_SEMBUF_H - -/* - * The semid64_ds structure for IA-64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ - __kernel_time_t sem_ctime; /* last change time */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused1; - unsigned long __unused2; -}; - -#endif /* _ASM_IA64_SEMBUF_H */ diff --git a/arch/ia64/include/uapi/asm/shmbuf.h b/arch/ia64/include/uapi/asm/shmbuf.h deleted file mode 100644 index 6ef57cb70dee..000000000000 --- a/arch/ia64/include/uapi/asm/shmbuf.h +++ /dev/null @@ -1,39 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _ASM_IA64_SHMBUF_H -#define _ASM_IA64_SHMBUF_H - -/* - * The shmid64_ds structure for IA-64 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 2 miscellaneous 64-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - __kernel_time_t shm_dtime; /* last detach time */ - __kernel_time_t shm_ctime; /* last change time */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused1; - unsigned long __unused2; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _ASM_IA64_SHMBUF_H */ diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index 88a9d27df1ac..4d8d68c4e3dd 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -1,4 +1,5 @@ generic-y += barrier.h +generic-y += compat.h generic-y += device.h generic-y += emergency-restart.h generic-y += exec.h diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild index 3c80a5a308ed..fe6a6c6e5003 100644 --- a/arch/microblaze/include/asm/Kbuild +++ b/arch/microblaze/include/asm/Kbuild @@ -2,6 +2,7 @@ generic-y += barrier.h generic-y += bitops.h generic-y += bug.h generic-y += bugs.h +generic-y += compat.h generic-y += device.h generic-y += div64.h generic-y += emergency-restart.h diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h index 9a0fa66b81ac..78675f19440f 100644 --- a/arch/mips/include/asm/compat.h +++ b/arch/mips/include/asm/compat.h @@ -14,7 +14,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_suseconds_t; @@ -38,24 +37,16 @@ typedef struct { typedef s32 compat_timer_t; typedef s32 compat_key_t; +typedef s16 compat_short_t; typedef s32 compat_int_t; typedef s32 compat_long_t; typedef s64 compat_s64; +typedef u16 compat_ushort_t; typedef u32 compat_uint_t; typedef u32 compat_ulong_t; typedef u64 compat_u64; typedef u32 compat_uptr_t; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; s32 st_pad1[3]; @@ -168,35 +159,35 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - compat_time_t sem_otime; - compat_time_t sem_ctime; + compat_ulong_t sem_otime; + compat_ulong_t sem_ctime; compat_ulong_t sem_nsems; - compat_ulong_t __unused1; - compat_ulong_t __unused2; + compat_ulong_t sem_otime_high; + compat_ulong_t sem_ctime_high; }; struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; #ifndef CONFIG_CPU_LITTLE_ENDIAN - compat_ulong_t __unused1; + compat_ulong_t msg_stime_high; #endif - compat_time_t msg_stime; + compat_ulong_t msg_stime; #ifdef CONFIG_CPU_LITTLE_ENDIAN - compat_ulong_t __unused1; + compat_ulong_t msg_stime_high; #endif #ifndef CONFIG_CPU_LITTLE_ENDIAN - compat_ulong_t __unused2; + compat_ulong_t msg_rtime_high; #endif - compat_time_t msg_rtime; + compat_ulong_t msg_rtime; #ifdef CONFIG_CPU_LITTLE_ENDIAN - compat_ulong_t __unused2; + compat_ulong_t msg_rtime_high; #endif #ifndef CONFIG_CPU_LITTLE_ENDIAN - compat_ulong_t __unused3; + compat_ulong_t msg_ctime_high; #endif - compat_time_t msg_ctime; + compat_ulong_t msg_ctime; #ifdef CONFIG_CPU_LITTLE_ENDIAN - compat_ulong_t __unused3; + compat_ulong_t msg_ctime_high; #endif compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; @@ -210,14 +201,16 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; compat_size_t shm_segsz; - compat_time_t shm_atime; - compat_time_t shm_dtime; - compat_time_t shm_ctime; + compat_ulong_t shm_atime; + compat_ulong_t shm_dtime; + compat_ulong_t shm_ctime; compat_pid_t shm_cpid; compat_pid_t shm_lpid; compat_ulong_t shm_nattch; - compat_ulong_t __unused1; - compat_ulong_t __unused2; + compat_ushort_t shm_atime_high; + compat_ushort_t shm_dtime_high; + compat_ushort_t shm_ctime_high; + compat_ushort_t __unused2; }; /* MIPS has unusual order of fields in stack_t */ diff --git a/arch/mips/include/uapi/asm/msgbuf.h b/arch/mips/include/uapi/asm/msgbuf.h index eb4d0f9d7364..46aa15b13e4e 100644 --- a/arch/mips/include/uapi/asm/msgbuf.h +++ b/arch/mips/include/uapi/asm/msgbuf.h @@ -9,33 +9,15 @@ * between kernel and user space. * * Pad space is left for: - * - extension of time_t to 64-bit on 32-bitsystem to solve the y2038 problem * - 2 miscellaneous unsigned long values */ +#if defined(__mips64) struct msqid64_ds { struct ipc64_perm msg_perm; -#if !defined(__mips64) && defined(__MIPSEB__) - unsigned long __unused1; -#endif __kernel_time_t msg_stime; /* last msgsnd time */ -#if !defined(__mips64) && defined(__MIPSEL__) - unsigned long __unused1; -#endif -#if !defined(__mips64) && defined(__MIPSEB__) - unsigned long __unused2; -#endif __kernel_time_t msg_rtime; /* last msgrcv time */ -#if !defined(__mips64) && defined(__MIPSEL__) - unsigned long __unused2; -#endif -#if !defined(__mips64) && defined(__MIPSEB__) - unsigned long __unused3; -#endif __kernel_time_t msg_ctime; /* last change time */ -#if !defined(__mips64) && defined(__MIPSEL__) - unsigned long __unused3; -#endif unsigned long msg_cbytes; /* current number of bytes on queue */ unsigned long msg_qnum; /* number of messages in queue */ unsigned long msg_qbytes; /* max number of bytes on queue */ @@ -44,5 +26,42 @@ struct msqid64_ds { unsigned long __unused4; unsigned long __unused5; }; +#elif defined (__MIPSEB__) +struct msqid64_ds { + struct ipc64_perm msg_perm; + unsigned long msg_stime_high; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_rtime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_ctime_high; + unsigned long msg_ctime; /* last change time */ + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ + __kernel_pid_t msg_lspid; /* pid of last msgsnd */ + __kernel_pid_t msg_lrpid; /* last receive pid */ + unsigned long __unused4; + unsigned long __unused5; +}; +#elif defined (__MIPSEL__) +struct msqid64_ds { + struct ipc64_perm msg_perm; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_stime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_rtime_high; + unsigned long msg_ctime; /* last change time */ + unsigned long msg_ctime_high; + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ + __kernel_pid_t msg_lspid; /* pid of last msgsnd */ + __kernel_pid_t msg_lrpid; /* last receive pid */ + unsigned long __unused4; + unsigned long __unused5; +}; +#else +#warning no endianess set +#endif #endif /* _ASM_MSGBUF_H */ diff --git a/arch/mips/include/uapi/asm/sembuf.h b/arch/mips/include/uapi/asm/sembuf.h index 2c0f507ab7d1..60c89e6cb25b 100644 --- a/arch/mips/include/uapi/asm/sembuf.h +++ b/arch/mips/include/uapi/asm/sembuf.h @@ -7,10 +7,11 @@ * Note extra padding because this structure is passed back and forth * between kernel and user space. * - * Pad space is left for: - * - 2 miscellaneous 64-bit values + * Pad space is left for 2 miscellaneous 64-bit values on mips64, + * but used for the upper 32 bit of the time values on mips32. */ +#ifdef __mips64 struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ __kernel_time_t sem_otime; /* last semop time */ @@ -19,5 +20,15 @@ struct semid64_ds { unsigned long __unused1; unsigned long __unused2; }; +#else +struct semid64_ds { + struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ + unsigned long sem_otime; /* last semop time */ + unsigned long sem_ctime; /* last change time */ + unsigned long sem_nsems; /* no. of semaphores in array */ + unsigned long sem_otime_high; + unsigned long sem_ctime_high; +}; +#endif #endif /* _ASM_SEMBUF_H */ diff --git a/arch/mips/include/uapi/asm/shmbuf.h b/arch/mips/include/uapi/asm/shmbuf.h index 379e6bca518b..9b9bba3401f2 100644 --- a/arch/mips/include/uapi/asm/shmbuf.h +++ b/arch/mips/include/uapi/asm/shmbuf.h @@ -7,10 +7,13 @@ * Note extra padding because this structure is passed back and forth * between kernel and user space. * - * Pad space is left for: - * - 2 miscellaneous 32-bit rsp. 64-bit values + * As MIPS was lacking proper padding after shm_?time, we use 48 bits + * of the padding at the end to store a few additional bits of the time. + * libc implementations need to take care to convert this into a proper + * data structure when moving to 64-bit time_t. */ +#ifdef __mips64 struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ size_t shm_segsz; /* size of segment (bytes) */ @@ -23,6 +26,22 @@ struct shmid64_ds { unsigned long __unused1; unsigned long __unused2; }; +#else +struct shmid64_ds { + struct ipc64_perm shm_perm; /* operation perms */ + size_t shm_segsz; /* size of segment (bytes) */ + unsigned long shm_atime; /* last attach time */ + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_ctime; /* last change time */ + __kernel_pid_t shm_cpid; /* pid of creator */ + __kernel_pid_t shm_lpid; /* pid of last operator */ + unsigned long shm_nattch; /* no. of current attaches */ + unsigned short shm_atime_high; + unsigned short shm_dtime_high; + unsigned short shm_ctime_high; + unsigned short __unused1; +}; +#endif struct shminfo64 { unsigned long shmmax; diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index c4db910a8794..b5d9e1784aff 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -8,13 +8,13 @@ * Copyright (C) 1999, 2000 Silicon Graphics, Inc. * Copyright (C) 2016, Imagination Technologies Ltd. */ +#include <linux/compat.h> #include <linux/compiler.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/signal.h> #include <linux/syscalls.h> -#include <asm/compat.h> #include <asm/compat-signal.h> #include <linux/uaccess.h> #include <asm/unistd.h> diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild index 06bdf8167f5a..d1b1f89d44f6 100644 --- a/arch/nds32/include/asm/Kbuild +++ b/arch/nds32/include/asm/Kbuild @@ -9,6 +9,7 @@ generic-y += checksum.h generic-y += clkdev.h generic-y += cmpxchg.h generic-y += cmpxchg-local.h +generic-y += compat.h generic-y += cputime.h generic-y += device.h generic-y += div64.h diff --git a/arch/nios2/include/asm/Kbuild b/arch/nios2/include/asm/Kbuild index d232da2cbb38..64ed3d656956 100644 --- a/arch/nios2/include/asm/Kbuild +++ b/arch/nios2/include/asm/Kbuild @@ -4,6 +4,7 @@ generic-y += bitops.h generic-y += bug.h generic-y += bugs.h generic-y += cmpxchg.h +generic-y += compat.h generic-y += current.h generic-y += device.h generic-y += div64.h diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index f05c722a21f8..65964d390b10 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -2,6 +2,7 @@ generic-y += barrier.h generic-y += bug.h generic-y += bugs.h generic-y += checksum.h +generic-y += compat.h generic-y += current.h generic-y += device.h generic-y += div64.h diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h index 57b8b2a2fd4e..ab8a54771507 100644 --- a/arch/parisc/include/asm/compat.h +++ b/arch/parisc/include/asm/compat.h @@ -13,7 +13,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u32 __compat_uid_t; @@ -40,16 +39,6 @@ typedef u32 compat_ulong_t; typedef u64 compat_u64; typedef u32 compat_uptr_t; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; /* dev_t is 32 bits on parisc */ compat_ino_t st_ino; /* 32 bits */ @@ -149,10 +138,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - unsigned int __unused1; - compat_time_t sem_otime; - unsigned int __unused2; - compat_time_t sem_ctime; + unsigned int sem_otime_high; + unsigned int sem_otime; + unsigned int sem_ctime_high; + unsigned int sem_ctime; compat_ulong_t sem_nsems; compat_ulong_t __unused3; compat_ulong_t __unused4; @@ -160,12 +149,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - unsigned int __unused1; - compat_time_t msg_stime; - unsigned int __unused2; - compat_time_t msg_rtime; - unsigned int __unused3; - compat_time_t msg_ctime; + unsigned int msg_stime_high; + unsigned int msg_stime; + unsigned int msg_rtime_high; + unsigned int msg_rtime; + unsigned int msg_ctime_high; + unsigned int msg_ctime; compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; compat_ulong_t msg_qbytes; @@ -177,12 +166,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; - unsigned int __unused1; - compat_time_t shm_atime; - unsigned int __unused2; - compat_time_t shm_dtime; - unsigned int __unused3; - compat_time_t shm_ctime; + unsigned int shm_atime_high; + unsigned int shm_atime; + unsigned int shm_dtime_high; + unsigned int shm_dtime; + unsigned int shm_ctime_high; + unsigned int shm_ctime; unsigned int __unused4; compat_size_t shm_segsz; compat_pid_t shm_cpid; diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h index b48b810e626b..6a2e9ab2ef8d 100644 --- a/arch/parisc/include/uapi/asm/msgbuf.h +++ b/arch/parisc/include/uapi/asm/msgbuf.h @@ -10,31 +10,30 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ struct msqid64_ds { struct ipc64_perm msg_perm; -#if __BITS_PER_LONG != 64 - unsigned int __pad1; -#endif +#if __BITS_PER_LONG == 64 __kernel_time_t msg_stime; /* last msgsnd time */ -#if __BITS_PER_LONG != 64 - unsigned int __pad2; -#endif __kernel_time_t msg_rtime; /* last msgrcv time */ -#if __BITS_PER_LONG != 64 - unsigned int __pad3; -#endif __kernel_time_t msg_ctime; /* last change time */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused1; - unsigned long __unused2; +#else + unsigned long msg_stime_high; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_rtime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_ctime_high; + unsigned long msg_ctime; /* last change time */ +#endif + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ + __kernel_pid_t msg_lspid; /* pid of last msgsnd */ + __kernel_pid_t msg_lrpid; /* last receive pid */ + unsigned long __unused1; + unsigned long __unused2; }; #endif /* _PARISC_MSGBUF_H */ diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h index 746c5d86a9b1..3c31163b1241 100644 --- a/arch/parisc/include/uapi/asm/sembuf.h +++ b/arch/parisc/include/uapi/asm/sembuf.h @@ -10,21 +10,21 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ -#if __BITS_PER_LONG != 64 - unsigned int __pad1; -#endif +#if __BITS_PER_LONG == 64 __kernel_time_t sem_otime; /* last semop time */ -#if __BITS_PER_LONG != 64 - unsigned int __pad2; -#endif __kernel_time_t sem_ctime; /* last change time */ - unsigned long sem_nsems; /* no. of semaphores in array */ +#else + unsigned long sem_otime_high; + unsigned long sem_otime; /* last semop time */ + unsigned long sem_ctime_high; + unsigned long sem_ctime; /* last change time */ +#endif + unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused1; unsigned long __unused2; }; diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h index cd4dbce55d0b..c89b3dd8db21 100644 --- a/arch/parisc/include/uapi/asm/shmbuf.h +++ b/arch/parisc/include/uapi/asm/shmbuf.h @@ -10,25 +10,22 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ -#if __BITS_PER_LONG != 64 - unsigned int __pad1; -#endif +#if __BITS_PER_LONG == 64 __kernel_time_t shm_atime; /* last attach time */ -#if __BITS_PER_LONG != 64 - unsigned int __pad2; -#endif __kernel_time_t shm_dtime; /* last detach time */ -#if __BITS_PER_LONG != 64 - unsigned int __pad3; -#endif __kernel_time_t shm_ctime; /* last change time */ -#if __BITS_PER_LONG != 64 +#else + unsigned long shm_atime_high; + unsigned long shm_atime; /* last attach time */ + unsigned long shm_dtime_high; + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_ctime_high; + unsigned long shm_ctime; /* last change time */ unsigned int __pad4; #endif __kernel_size_t shm_segsz; /* size of segment (bytes) */ diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h index 62168e1158f1..85c8af2bb272 100644 --- a/arch/powerpc/include/asm/compat.h +++ b/arch/powerpc/include/asm/compat.h @@ -17,7 +17,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u32 __compat_uid_t; @@ -45,16 +44,6 @@ typedef u32 compat_ulong_t; typedef u64 compat_u64; typedef u32 compat_uptr_t; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; compat_ino_t st_ino; @@ -173,10 +162,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - unsigned int __unused1; - compat_time_t sem_otime; - unsigned int __unused2; - compat_time_t sem_ctime; + unsigned int sem_otime_high; + unsigned int sem_otime; + unsigned int sem_ctime_high; + unsigned int sem_ctime; compat_ulong_t sem_nsems; compat_ulong_t __unused3; compat_ulong_t __unused4; @@ -184,12 +173,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - unsigned int __unused1; - compat_time_t msg_stime; - unsigned int __unused2; - compat_time_t msg_rtime; - unsigned int __unused3; - compat_time_t msg_ctime; + unsigned int msg_stime_high; + unsigned int msg_stime; + unsigned int msg_rtime_high; + unsigned int msg_rtime; + unsigned int msg_ctime_high; + unsigned int msg_ctime; compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; compat_ulong_t msg_qbytes; @@ -201,12 +190,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; - unsigned int __unused1; - compat_time_t shm_atime; - unsigned int __unused2; - compat_time_t shm_dtime; - unsigned int __unused3; - compat_time_t shm_ctime; + unsigned int shm_atime_high; + unsigned int shm_atime; + unsigned int shm_dtime_high; + unsigned int shm_dtime; + unsigned int shm_ctime_high; + unsigned int shm_ctime; unsigned int __unused4; compat_size_t shm_segsz; compat_pid_t shm_cpid; diff --git a/arch/powerpc/include/uapi/asm/msgbuf.h b/arch/powerpc/include/uapi/asm/msgbuf.h index 65beb0942500..2b1b37797a47 100644 --- a/arch/powerpc/include/uapi/asm/msgbuf.h +++ b/arch/powerpc/include/uapi/asm/msgbuf.h @@ -10,18 +10,18 @@ struct msqid64_ds { struct ipc64_perm msg_perm; -#ifndef __powerpc64__ - unsigned int __unused1; -#endif +#ifdef __powerpc64__ __kernel_time_t msg_stime; /* last msgsnd time */ -#ifndef __powerpc64__ - unsigned int __unused2; -#endif __kernel_time_t msg_rtime; /* last msgrcv time */ -#ifndef __powerpc64__ - unsigned int __unused3; -#endif __kernel_time_t msg_ctime; /* last change time */ +#else + unsigned long msg_stime_high; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_rtime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_ctime_high; + unsigned long msg_ctime; /* last change time */ +#endif unsigned long msg_cbytes; /* current number of bytes on queue */ unsigned long msg_qnum; /* number of messages in queue */ unsigned long msg_qbytes; /* max number of bytes on queue */ diff --git a/arch/powerpc/include/uapi/asm/sembuf.h b/arch/powerpc/include/uapi/asm/sembuf.h index 8f393d60f02d..3f60946f77e3 100644 --- a/arch/powerpc/include/uapi/asm/sembuf.h +++ b/arch/powerpc/include/uapi/asm/sembuf.h @@ -15,20 +15,20 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values + * - 2 miscellaneous 32/64-bit values */ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ #ifndef __powerpc64__ - unsigned long __unused1; -#endif + unsigned long sem_otime_high; + unsigned long sem_otime; /* last semop time */ + unsigned long sem_ctime_high; + unsigned long sem_ctime; /* last change time */ +#else __kernel_time_t sem_otime; /* last semop time */ -#ifndef __powerpc64__ - unsigned long __unused2; -#endif __kernel_time_t sem_ctime; /* last change time */ +#endif unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused3; unsigned long __unused4; diff --git a/arch/powerpc/include/uapi/asm/shmbuf.h b/arch/powerpc/include/uapi/asm/shmbuf.h index deb1c3e503d3..b591c4d7e4c5 100644 --- a/arch/powerpc/include/uapi/asm/shmbuf.h +++ b/arch/powerpc/include/uapi/asm/shmbuf.h @@ -16,25 +16,22 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ -#ifndef __powerpc64__ - unsigned long __unused1; -#endif +#ifdef __powerpc64__ __kernel_time_t shm_atime; /* last attach time */ -#ifndef __powerpc64__ - unsigned long __unused2; -#endif __kernel_time_t shm_dtime; /* last detach time */ -#ifndef __powerpc64__ - unsigned long __unused3; -#endif __kernel_time_t shm_ctime; /* last change time */ -#ifndef __powerpc64__ +#else + unsigned long shm_atime_high; + unsigned long shm_atime; /* last attach time */ + unsigned long shm_dtime_high; + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_ctime_high; + unsigned long shm_ctime; /* last change time */ unsigned long __unused4; #endif size_t shm_segsz; /* size of segment (bytes) */ diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 6bee65f3cfd3..a77528db474c 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -13,6 +13,7 @@ * 2 of the License, or (at your option) any later version. */ +#include <linux/compat.h> #include <linux/signal.h> #include <linux/sched.h> #include <linux/kernel.h> @@ -42,7 +43,6 @@ #include <asm/paca.h> #include <asm/lppaca.h> #include <asm/cache.h> -#include <asm/compat.h> #include <asm/mmu.h> #include <asm/hvcall.h> #include <asm/xics.h> diff --git a/arch/powerpc/oprofile/backtrace.c b/arch/powerpc/oprofile/backtrace.c index ecc66d5f02c9..ad054dd0d666 100644 --- a/arch/powerpc/oprofile/backtrace.c +++ b/arch/powerpc/oprofile/backtrace.c @@ -7,6 +7,7 @@ * 2 of the License, or (at your option) any later version. **/ +#include <linux/compat_time.h> #include <linux/oprofile.h> #include <linux/sched.h> #include <asm/processor.h> diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c index ae0ed8dd5f1b..5d85a039391c 100644 --- a/arch/s390/hypfs/hypfs_sprp.c +++ b/arch/s390/hypfs/hypfs_sprp.c @@ -13,7 +13,6 @@ #include <linux/string.h> #include <linux/types.h> #include <linux/uaccess.h> -#include <asm/compat.h> #include <asm/diag.h> #include <asm/sclp.h> #include "hypfs.h" diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 9830fb6b076e..97db2fba546a 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -53,7 +53,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u16 __compat_uid_t; @@ -97,16 +96,6 @@ typedef struct { u32 gprs_high[NUM_GPRS]; } s390_compat_regs_high; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; u16 __pad1; @@ -243,10 +232,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - compat_time_t sem_otime; - compat_ulong_t __pad1; - compat_time_t sem_ctime; - compat_ulong_t __pad2; + compat_ulong_t sem_otime; + compat_ulong_t sem_otime_high; + compat_ulong_t sem_ctime; + compat_ulong_t sem_ctime_high; compat_ulong_t sem_nsems; compat_ulong_t __unused1; compat_ulong_t __unused2; @@ -254,12 +243,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - compat_time_t msg_stime; - compat_ulong_t __pad1; - compat_time_t msg_rtime; - compat_ulong_t __pad2; - compat_time_t msg_ctime; - compat_ulong_t __pad3; + compat_ulong_t msg_stime; + compat_ulong_t msg_stime_high; + compat_ulong_t msg_rtime; + compat_ulong_t msg_rtime_high; + compat_ulong_t msg_ctime; + compat_ulong_t msg_ctime_high; compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; compat_ulong_t msg_qbytes; @@ -272,12 +261,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; compat_size_t shm_segsz; - compat_time_t shm_atime; - compat_ulong_t __pad1; - compat_time_t shm_dtime; - compat_ulong_t __pad2; - compat_time_t shm_ctime; - compat_ulong_t __pad3; + compat_ulong_t shm_atime; + compat_ulong_t shm_atime_high; + compat_ulong_t shm_dtime; + compat_ulong_t shm_dtime_high; + compat_ulong_t shm_ctime; + compat_ulong_t shm_ctime_high; compat_pid_t shm_cpid; compat_pid_t shm_lpid; compat_ulong_t shm_nattch; diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h index 1a61b1b997f2..7d22a474a040 100644 --- a/arch/s390/include/asm/elf.h +++ b/arch/s390/include/asm/elf.h @@ -125,8 +125,9 @@ * ELF register definitions.. */ +#include <linux/compat.h> + #include <asm/ptrace.h> -#include <asm/compat.h> #include <asm/syscall.h> #include <asm/user.h> @@ -136,7 +137,6 @@ typedef s390_regs elf_gregset_t; typedef s390_fp_regs compat_elf_fpregset_t; typedef s390_compat_regs compat_elf_gregset_t; -#include <linux/compat.h> #include <linux/sched/mm.h> /* for task_struct */ #include <asm/mmu_context.h> diff --git a/arch/s390/include/uapi/asm/Kbuild b/arch/s390/include/uapi/asm/Kbuild index faef3f7e8353..e364873e0d10 100644 --- a/arch/s390/include/uapi/asm/Kbuild +++ b/arch/s390/include/uapi/asm/Kbuild @@ -9,9 +9,12 @@ generic-y += errno.h generic-y += fcntl.h generic-y += ioctl.h generic-y += mman.h +generic-y += msgbuf.h generic-y += param.h generic-y += poll.h generic-y += resource.h +generic-y += sembuf.h +generic-y += shmbuf.h generic-y += sockios.h generic-y += swab.h generic-y += termbits.h diff --git a/arch/s390/include/uapi/asm/msgbuf.h b/arch/s390/include/uapi/asm/msgbuf.h deleted file mode 100644 index 604f847cd68c..000000000000 --- a/arch/s390/include/uapi/asm/msgbuf.h +++ /dev/null @@ -1,38 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _S390_MSGBUF_H -#define _S390_MSGBUF_H - -/* - * The msqid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values - */ - -struct msqid64_ds { - struct ipc64_perm msg_perm; - __kernel_time_t msg_stime; /* last msgsnd time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t msg_rtime; /* last msgrcv time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - __kernel_time_t msg_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused3; -#endif /* ! __s390x__ */ - unsigned long msg_cbytes; /* current number of bytes on queue */ - unsigned long msg_qnum; /* number of messages in queue */ - unsigned long msg_qbytes; /* max number of bytes on queue */ - __kernel_pid_t msg_lspid; /* pid of last msgsnd */ - __kernel_pid_t msg_lrpid; /* last receive pid */ - unsigned long __unused4; - unsigned long __unused5; -}; - -#endif /* _S390_MSGBUF_H */ diff --git a/arch/s390/include/uapi/asm/sembuf.h b/arch/s390/include/uapi/asm/sembuf.h deleted file mode 100644 index 3e917697b668..000000000000 --- a/arch/s390/include/uapi/asm/sembuf.h +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _S390_SEMBUF_H -#define _S390_SEMBUF_H - -/* - * The semid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem (for !__s390x__) - * - 2 miscellaneous 32-bit values - */ - -struct semid64_ds { - struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - __kernel_time_t sem_otime; /* last semop time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t sem_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - unsigned long sem_nsems; /* no. of semaphores in array */ - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _S390_SEMBUF_H */ diff --git a/arch/s390/include/uapi/asm/shmbuf.h b/arch/s390/include/uapi/asm/shmbuf.h deleted file mode 100644 index 9cdce8d7ce60..000000000000 --- a/arch/s390/include/uapi/asm/shmbuf.h +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ -#ifndef _S390_SHMBUF_H -#define _S390_SHMBUF_H - -/* - * The shmid64_ds structure for S/390 architecture. - * Note extra padding because this structure is passed back and forth - * between kernel and user space. - * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem (for !__s390x__) - * - 2 miscellaneous 32-bit values - */ - -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ -#ifndef __s390x__ - unsigned long __unused1; -#endif /* ! __s390x__ */ - __kernel_time_t shm_dtime; /* last detach time */ -#ifndef __s390x__ - unsigned long __unused2; -#endif /* ! __s390x__ */ - __kernel_time_t shm_ctime; /* last change time */ -#ifndef __s390x__ - unsigned long __unused3; -#endif /* ! __s390x__ */ - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; - -struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; -}; - -#endif /* _S390_SHMBUF_H */ diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index ebfa0442e569..a3bce0e84346 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -26,7 +26,6 @@ #include <asm/gmap.h> #include <asm/io.h> #include <asm/ptrace.h> -#include <asm/compat.h> #include <asm/sclp.h> #include "gaccess.h" #include "kvm-s390.h" diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index 93cd0f1ca12b..19b2d2a9b43d 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -19,7 +19,6 @@ #include <linux/uaccess.h> #include <asm/pci_debug.h> #include <asm/pci_clp.h> -#include <asm/compat.h> #include <asm/clp.h> #include <uapi/asm/clp.h> diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild index 1efcce74997b..46dd82ab2c29 100644 --- a/arch/sh/include/asm/Kbuild +++ b/arch/sh/include/asm/Kbuild @@ -1,3 +1,4 @@ +generic-y += compat.h generic-y += current.h generic-y += delay.h generic-y += div64.h diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h index 615283e16f22..4eb51d2dae98 100644 --- a/arch/sparc/include/asm/compat.h +++ b/arch/sparc/include/asm/compat.h @@ -11,7 +11,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u16 __compat_uid_t; @@ -39,16 +38,6 @@ typedef u32 compat_ulong_t; typedef u64 compat_u64; typedef u32 compat_uptr_t; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; compat_ino_t st_ino; @@ -168,6 +157,7 @@ static inline compat_uptr_t ptr_to_compat(void __user *uptr) return (u32)(unsigned long)uptr; } +#ifdef CONFIG_COMPAT static inline void __user *arch_compat_alloc_user_space(long len) { struct pt_regs *regs = current_thread_info()->kregs; @@ -184,6 +174,7 @@ static inline void __user *arch_compat_alloc_user_space(long len) return (void __user *) usp; } +#endif struct compat_ipc64_perm { compat_key_t key; @@ -201,10 +192,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - unsigned int __pad1; - compat_time_t sem_otime; - unsigned int __pad2; - compat_time_t sem_ctime; + unsigned int sem_otime_high; + unsigned int sem_otime; + unsigned int sem_ctime_high; + unsigned int sem_ctime; u32 sem_nsems; u32 __unused1; u32 __unused2; @@ -212,12 +203,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - unsigned int __pad1; - compat_time_t msg_stime; - unsigned int __pad2; - compat_time_t msg_rtime; - unsigned int __pad3; - compat_time_t msg_ctime; + unsigned int msg_stime_high; + unsigned int msg_stime; + unsigned int msg_rtime_high; + unsigned int msg_rtime; + unsigned int msg_ctime_high; + unsigned int msg_ctime; unsigned int msg_cbytes; unsigned int msg_qnum; unsigned int msg_qbytes; @@ -229,12 +220,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; - unsigned int __pad1; - compat_time_t shm_atime; - unsigned int __pad2; - compat_time_t shm_dtime; - unsigned int __pad3; - compat_time_t shm_ctime; + unsigned int shm_atime_high; + unsigned int shm_atime; + unsigned int shm_dtime_high; + unsigned int shm_dtime; + unsigned int shm_ctime_high; + unsigned int shm_ctime; compat_size_t shm_segsz; compat_pid_t shm_cpid; compat_pid_t shm_lpid; @@ -243,6 +234,7 @@ struct compat_shmid64_ds { unsigned int __unused2; }; +#ifdef CONFIG_COMPAT static inline int is_compat_task(void) { return test_thread_flag(TIF_32BIT); @@ -254,5 +246,6 @@ static inline bool in_compat_syscall(void) return pt_regs_trap_type(current_pt_regs()) == 0x110; } #define in_compat_syscall in_compat_syscall +#endif #endif /* _ASM_SPARC64_COMPAT_H */ diff --git a/arch/sparc/include/uapi/asm/msgbuf.h b/arch/sparc/include/uapi/asm/msgbuf.h index b601c4f4d956..ffc46c211d6d 100644 --- a/arch/sparc/include/uapi/asm/msgbuf.h +++ b/arch/sparc/include/uapi/asm/msgbuf.h @@ -8,25 +8,22 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ - -#if defined(__sparc__) && defined(__arch64__) -# define PADDING(x) -#else -# define PADDING(x) unsigned int x; -#endif - - struct msqid64_ds { struct ipc64_perm msg_perm; - PADDING(__pad1) +#if defined(__sparc__) && defined(__arch64__) __kernel_time_t msg_stime; /* last msgsnd time */ - PADDING(__pad2) __kernel_time_t msg_rtime; /* last msgrcv time */ - PADDING(__pad3) __kernel_time_t msg_ctime; /* last change time */ +#else + unsigned long msg_stime_high; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_rtime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_ctime_high; + unsigned long msg_ctime; /* last change time */ +#endif unsigned long msg_cbytes; /* current number of bytes on queue */ unsigned long msg_qnum; /* number of messages in queue */ unsigned long msg_qbytes; /* max number of bytes on queue */ @@ -35,5 +32,4 @@ struct msqid64_ds { unsigned long __unused1; unsigned long __unused2; }; -#undef PADDING #endif /* _SPARC_MSGBUF_H */ diff --git a/arch/sparc/include/uapi/asm/sembuf.h b/arch/sparc/include/uapi/asm/sembuf.h index f49b0ffa0ab8..f3d309c2e1cd 100644 --- a/arch/sparc/include/uapi/asm/sembuf.h +++ b/arch/sparc/include/uapi/asm/sembuf.h @@ -8,25 +8,23 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ -#if defined(__sparc__) && defined(__arch64__) -# define PADDING(x) -#else -# define PADDING(x) unsigned int x; -#endif struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ - PADDING(__pad1) +#if defined(__sparc__) && defined(__arch64__) __kernel_time_t sem_otime; /* last semop time */ - PADDING(__pad2) __kernel_time_t sem_ctime; /* last change time */ +#else + unsigned long sem_otime_high; + unsigned long sem_otime; /* last semop time */ + unsigned long sem_ctime_high; + unsigned long sem_ctime; /* last change time */ +#endif unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused1; unsigned long __unused2; }; -#undef PADDING #endif /* _SPARC64_SEMBUF_H */ diff --git a/arch/sparc/include/uapi/asm/shmbuf.h b/arch/sparc/include/uapi/asm/shmbuf.h index 286631db705c..06618b84822d 100644 --- a/arch/sparc/include/uapi/asm/shmbuf.h +++ b/arch/sparc/include/uapi/asm/shmbuf.h @@ -8,24 +8,23 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ -#if defined(__sparc__) && defined(__arch64__) -# define PADDING(x) -#else -# define PADDING(x) unsigned int x; -#endif - struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ - PADDING(__pad1) +#if defined(__sparc__) && defined(__arch64__) __kernel_time_t shm_atime; /* last attach time */ - PADDING(__pad2) __kernel_time_t shm_dtime; /* last detach time */ - PADDING(__pad3) __kernel_time_t shm_ctime; /* last change time */ +#else + unsigned long shm_atime_high; + unsigned long shm_atime; /* last attach time */ + unsigned long shm_dtime_high; + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_ctime_high; + unsigned long shm_ctime; /* last change time */ +#endif size_t shm_segsz; /* size of segment (bytes) */ __kernel_pid_t shm_cpid; /* pid of creator */ __kernel_pid_t shm_lpid; /* pid of last operator */ @@ -46,6 +45,4 @@ struct shminfo64 { unsigned long __unused4; }; -#undef PADDING - #endif /* _SPARC_SHMBUF_H */ diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild index bb5a196c3061..b10dde6cb793 100644 --- a/arch/um/include/asm/Kbuild +++ b/arch/um/include/asm/Kbuild @@ -1,6 +1,7 @@ generic-y += barrier.h generic-y += bpf_perf_event.h generic-y += bug.h +generic-y += compat.h generic-y += current.h generic-y += delay.h generic-y += device.h diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild index 6f70c76c81fc..bfc7abe77905 100644 --- a/arch/unicore32/include/asm/Kbuild +++ b/arch/unicore32/include/asm/Kbuild @@ -1,5 +1,6 @@ generic-y += atomic.h generic-y += bugs.h +generic-y += compat.h generic-y += current.h generic-y += device.h generic-y += div64.h diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 45b2b1c93d04..6e461fb1e0d4 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -2397,7 +2397,7 @@ static unsigned long get_segment_base(unsigned int segment) #ifdef CONFIG_IA32_EMULATION -#include <asm/compat.h> +#include <linux/compat.h> static inline int perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry) diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h index e1c8dab86670..fb97cf7c4137 100644 --- a/arch/x86/include/asm/compat.h +++ b/arch/x86/include/asm/compat.h @@ -17,7 +17,6 @@ typedef u32 compat_size_t; typedef s32 compat_ssize_t; -typedef s32 compat_time_t; typedef s32 compat_clock_t; typedef s32 compat_pid_t; typedef u16 __compat_uid_t; @@ -46,16 +45,6 @@ typedef u32 compat_u32; typedef u64 __attribute__((aligned(4))) compat_u64; typedef u32 compat_uptr_t; -struct compat_timespec { - compat_time_t tv_sec; - s32 tv_nsec; -}; - -struct compat_timeval { - compat_time_t tv_sec; - s32 tv_usec; -}; - struct compat_stat { compat_dev_t st_dev; u16 __pad1; @@ -145,10 +134,10 @@ struct compat_ipc64_perm { struct compat_semid64_ds { struct compat_ipc64_perm sem_perm; - compat_time_t sem_otime; - compat_ulong_t __unused1; - compat_time_t sem_ctime; - compat_ulong_t __unused2; + compat_ulong_t sem_otime; + compat_ulong_t sem_otime_high; + compat_ulong_t sem_ctime; + compat_ulong_t sem_ctime_high; compat_ulong_t sem_nsems; compat_ulong_t __unused3; compat_ulong_t __unused4; @@ -156,12 +145,12 @@ struct compat_semid64_ds { struct compat_msqid64_ds { struct compat_ipc64_perm msg_perm; - compat_time_t msg_stime; - compat_ulong_t __unused1; - compat_time_t msg_rtime; - compat_ulong_t __unused2; - compat_time_t msg_ctime; - compat_ulong_t __unused3; + compat_ulong_t msg_stime; + compat_ulong_t msg_stime_high; + compat_ulong_t msg_rtime; + compat_ulong_t msg_rtime_high; + compat_ulong_t msg_ctime; + compat_ulong_t msg_ctime_high; compat_ulong_t msg_cbytes; compat_ulong_t msg_qnum; compat_ulong_t msg_qbytes; @@ -174,12 +163,12 @@ struct compat_msqid64_ds { struct compat_shmid64_ds { struct compat_ipc64_perm shm_perm; compat_size_t shm_segsz; - compat_time_t shm_atime; - compat_ulong_t __unused1; - compat_time_t shm_dtime; - compat_ulong_t __unused2; - compat_time_t shm_ctime; - compat_ulong_t __unused3; + compat_ulong_t shm_atime; + compat_ulong_t shm_atime_high; + compat_ulong_t shm_dtime; + compat_ulong_t shm_dtime_high; + compat_ulong_t shm_ctime; + compat_ulong_t shm_ctime_high; compat_pid_t shm_cpid; compat_pid_t shm_lpid; compat_ulong_t shm_nattch; diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h index cc8f8fcf9b4a..c18ed65287d5 100644 --- a/arch/x86/include/asm/ftrace.h +++ b/arch/x86/include/asm/ftrace.h @@ -63,7 +63,7 @@ static inline bool arch_syscall_match_sym_name(const char *sym, const char *name #ifndef COMPILE_OFFSETS #if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION) -#include <asm/compat.h> +#include <linux/compat.h> /* * Because ia32 syscalls do not map to x86_64 syscall numbers diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h index cabd7476bd6c..89de6cd9f0a7 100644 --- a/arch/x86/include/uapi/asm/sembuf.h +++ b/arch/x86/include/uapi/asm/sembuf.h @@ -8,15 +8,24 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values + * + * x86_64 and x32 incorrectly added padding here, so the structures + * are still incompatible with the padding on x86. */ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ +#ifdef __i386__ + unsigned long sem_otime; /* last semop time */ + unsigned long sem_otime_high; + unsigned long sem_ctime; /* last change time */ + unsigned long sem_ctime_high; +#else __kernel_time_t sem_otime; /* last semop time */ __kernel_ulong_t __unused1; __kernel_time_t sem_ctime; /* last change time */ __kernel_ulong_t __unused2; +#endif __kernel_ulong_t sem_nsems; /* no. of semaphores in array */ __kernel_ulong_t __unused3; __kernel_ulong_t __unused4; diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index a3f15ed545b5..6a78d4b36a79 100644 --- a/arch/x86/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/compat.h> #include <linux/errno.h> #include <linux/sched.h> #include <linux/sched/mm.h> @@ -19,7 +20,6 @@ #include <linux/elf.h> #include <asm/elf.h> -#include <asm/compat.h> #include <asm/ia32.h> #include <asm/syscalls.h> #include <asm/mpx.h> diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild index 436b20337168..e5e1e61c538c 100644 --- a/arch/xtensa/include/asm/Kbuild +++ b/arch/xtensa/include/asm/Kbuild @@ -1,4 +1,5 @@ generic-y += bug.h +generic-y += compat.h generic-y += device.h generic-y += div64.h generic-y += dma-contiguous.h diff --git a/arch/xtensa/include/uapi/asm/msgbuf.h b/arch/xtensa/include/uapi/asm/msgbuf.h index 36e2e103ca38..d6915e9f071c 100644 --- a/arch/xtensa/include/uapi/asm/msgbuf.h +++ b/arch/xtensa/include/uapi/asm/msgbuf.h @@ -7,7 +7,6 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values * * This file is subject to the terms and conditions of the GNU General @@ -21,19 +20,19 @@ struct msqid64_ds { struct ipc64_perm msg_perm; #ifdef __XTENSA_EB__ - unsigned int __unused1; - __kernel_time_t msg_stime; /* last msgsnd time */ - unsigned int __unused2; - __kernel_time_t msg_rtime; /* last msgrcv time */ - unsigned int __unused3; - __kernel_time_t msg_ctime; /* last change time */ + unsigned long msg_stime_high; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_rtime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_ctime_high; + unsigned long msg_ctime; /* last change time */ #elif defined(__XTENSA_EL__) - __kernel_time_t msg_stime; /* last msgsnd time */ - unsigned int __unused1; - __kernel_time_t msg_rtime; /* last msgrcv time */ - unsigned int __unused2; - __kernel_time_t msg_ctime; /* last change time */ - unsigned int __unused3; + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_stime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_rtime_high; + unsigned long msg_ctime; /* last change time */ + unsigned long msg_ctime_high; #else # error processor byte order undefined! #endif diff --git a/arch/xtensa/include/uapi/asm/sembuf.h b/arch/xtensa/include/uapi/asm/sembuf.h index f61b6331a10c..09f348d643f1 100644 --- a/arch/xtensa/include/uapi/asm/sembuf.h +++ b/arch/xtensa/include/uapi/asm/sembuf.h @@ -14,7 +14,6 @@ * between kernel and user space. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values * */ @@ -27,15 +26,15 @@ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ #ifdef __XTENSA_EL__ - __kernel_time_t sem_otime; /* last semop time */ - unsigned long __unused1; - __kernel_time_t sem_ctime; /* last change time */ - unsigned long __unused2; + unsigned long sem_otime; /* last semop time */ + unsigned long sem_otime_high; + unsigned long sem_ctime; /* last change time */ + unsigned long sem_ctime_high; #else - unsigned long __unused1; - __kernel_time_t sem_otime; /* last semop time */ - unsigned long __unused2; - __kernel_time_t sem_ctime; /* last change time */ + unsigned long sem_otime_high; + unsigned long sem_otime; /* last semop time */ + unsigned long sem_ctime_high; + unsigned long sem_ctime; /* last change time */ #endif unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused3; diff --git a/arch/xtensa/include/uapi/asm/shmbuf.h b/arch/xtensa/include/uapi/asm/shmbuf.h index 26550bdc8430..554a57a6a90f 100644 --- a/arch/xtensa/include/uapi/asm/shmbuf.h +++ b/arch/xtensa/include/uapi/asm/shmbuf.h @@ -4,10 +4,10 @@ * * The shmid64_ds structure for Xtensa architecture. * Note extra padding because this structure is passed back and forth - * between kernel and user space. + * between kernel and user space, but the padding is on the wrong + * side for big-endian xtensa, for historic reasons. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values * * This file is subject to the terms and conditions of the GNU General Public @@ -20,42 +20,21 @@ #ifndef _XTENSA_SHMBUF_H #define _XTENSA_SHMBUF_H -#if defined (__XTENSA_EL__) struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - unsigned long __unused1; - __kernel_time_t shm_dtime; /* last detach time */ - unsigned long __unused2; - __kernel_time_t shm_ctime; /* last change time */ - unsigned long __unused3; + unsigned long shm_atime; /* last attach time */ + unsigned long shm_atime_high; + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_dtime_high; + unsigned long shm_ctime; /* last change time */ + unsigned long shm_ctime_high; __kernel_pid_t shm_cpid; /* pid of creator */ __kernel_pid_t shm_lpid; /* pid of last operator */ unsigned long shm_nattch; /* no. of current attaches */ unsigned long __unused4; unsigned long __unused5; }; -#elif defined (__XTENSA_EB__) -struct shmid64_ds { - struct ipc64_perm shm_perm; /* operation perms */ - size_t shm_segsz; /* size of segment (bytes) */ - __kernel_time_t shm_atime; /* last attach time */ - unsigned long __unused1; - __kernel_time_t shm_dtime; /* last detach time */ - unsigned long __unused2; - __kernel_time_t shm_ctime; /* last change time */ - unsigned long __unused3; - __kernel_pid_t shm_cpid; /* pid of creator */ - __kernel_pid_t shm_lpid; /* pid of last operator */ - unsigned long shm_nattch; /* no. of current attaches */ - unsigned long __unused4; - unsigned long __unused5; -}; -#else -# error endian order not defined -#endif - struct shminfo64 { unsigned long shmmax; diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 7bdc6aaa0ba3..2016e0ed5865 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -18,7 +18,6 @@ #include <linux/fs.h> #include <linux/blkpg.h> #include <linux/slab.h> -#include <asm/compat.h> #include <asm/ccwdev.h> #include <asm/schid.h> #include <asm/cmb.h> diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 61822480a2a0..16a4e8528bbc 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -19,7 +19,6 @@ #include <linux/slab.h> #include <linux/types.h> -#include <asm/compat.h> #include <asm/ccwdev.h> #include <asm/cio.h> #include <asm/ebcdic.h> diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c index a78cea0c3a09..248b5db3eaa8 100644 --- a/drivers/s390/char/sclp_ctl.c +++ b/drivers/s390/char/sclp_ctl.c @@ -14,7 +14,6 @@ #include <linux/init.h> #include <linux/ioctl.h> #include <linux/fs.h> -#include <asm/compat.h> #include <asm/sclp_ctl.h> #include <asm/sclp.h> diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 17e411c57576..948ce82a7725 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -23,7 +23,6 @@ #include <linux/mutex.h> #include <linux/cma.h> #include <linux/mm.h> -#include <asm/compat.h> #include <asm/cpcmd.h> #include <asm/debug.h> #include <asm/vmcp.h> diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 0015729d917d..8d9f36625ba5 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -16,7 +16,6 @@ #include <linux/miscdevice.h> #include <linux/kernel_stat.h> -#include <asm/compat.h> #include <asm/cio.h> #include <asm/chsc.h> #include <asm/isc.h> diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index dffd820731f2..f5a0d894d9ad 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -10,6 +10,7 @@ #define KMSG_COMPONENT "qeth" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include <linux/compat.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/string.h> @@ -32,7 +33,6 @@ #include <asm/chpid.h> #include <asm/io.h> #include <asm/sysinfo.h> -#include <asm/compat.h> #include <asm/diag.h> #include <asm/cio.h> #include <asm/ccwdev.h> diff --git a/include/asm-generic/compat.h b/include/asm-generic/compat.h new file mode 100644 index 000000000000..28819451b6d1 --- /dev/null +++ b/include/asm-generic/compat.h @@ -0,0 +1,3 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +/* This is an empty stub for 32-bit-only architectures */ diff --git a/include/linux/compat.h b/include/linux/compat.h index 081281ad5772..cfc1b6383ae0 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -7,8 +7,7 @@ */ #include <linux/types.h> - -#ifdef CONFIG_COMPAT +#include <linux/compat_time.h> #include <linux/stat.h> #include <linux/param.h> /* for HZ */ @@ -21,8 +20,11 @@ #include <linux/unistd.h> #include <asm/compat.h> + +#ifdef CONFIG_COMPAT #include <asm/siginfo.h> #include <asm/signal.h> +#endif #ifdef CONFIG_ARCH_HAS_SYSCALL_WRAPPER /* @@ -83,6 +85,8 @@ static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #endif /* COMPAT_SYSCALL_DEFINEx */ +#ifdef CONFIG_COMPAT + #ifndef compat_user_stack_pointer #define compat_user_stack_pointer() current_user_stack_pointer() #endif @@ -290,8 +294,6 @@ extern int compat_get_timespec(struct timespec *, const void __user *); extern int compat_put_timespec(const struct timespec *, void __user *); extern int compat_get_timeval(struct timeval *, const void __user *); extern int compat_put_timeval(const struct timeval *, void __user *); -extern int compat_get_timespec64(struct timespec64 *, const void __user *); -extern int compat_put_timespec64(const struct timespec64 *, void __user *); extern int get_compat_itimerspec64(struct itimerspec64 *its, const struct compat_itimerspec __user *uits); extern int put_compat_itimerspec64(const struct itimerspec64 *its, @@ -1016,7 +1018,9 @@ static inline struct compat_timeval ns_to_compat_timeval(s64 nsec) #else /* !CONFIG_COMPAT */ #define is_compat_task() (0) +#ifndef in_compat_syscall static inline bool in_compat_syscall(void) { return false; } +#endif #endif /* CONFIG_COMPAT */ diff --git a/include/linux/compat_time.h b/include/linux/compat_time.h new file mode 100644 index 000000000000..31f2774f1994 --- /dev/null +++ b/include/linux/compat_time.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_COMPAT_TIME_H +#define _LINUX_COMPAT_TIME_H + +#include <linux/types.h> +#include <linux/time64.h> + +typedef s32 compat_time_t; + +struct compat_timespec { + compat_time_t tv_sec; + s32 tv_nsec; +}; + +struct compat_timeval { + compat_time_t tv_sec; + s32 tv_usec; +}; + +extern int compat_get_timespec64(struct timespec64 *, const void __user *); +extern int compat_put_timespec64(const struct timespec64 *, void __user *); + +#endif /* _LINUX_COMPAT_TIME_H */ diff --git a/include/linux/restart_block.h b/include/linux/restart_block.h index bcfdb918cd81..5d83d0c1d06c 100644 --- a/include/linux/restart_block.h +++ b/include/linux/restart_block.h @@ -7,6 +7,7 @@ #include <linux/compiler.h> #include <linux/types.h> +#include <linux/time64.h> struct timespec; struct compat_timespec; @@ -15,9 +16,7 @@ struct pollfd; enum timespec_type { TT_NONE = 0, TT_NATIVE = 1, -#ifdef CONFIG_COMPAT TT_COMPAT = 2, -#endif }; /* @@ -40,10 +39,8 @@ struct restart_block { clockid_t clockid; enum timespec_type type; union { - struct timespec __user *rmtp; -#ifdef CONFIG_COMPAT + struct __kernel_timespec __user *rmtp; struct compat_timespec __user *compat_rmtp; -#endif }; u64 expires; } nanosleep; diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 70fcda1a9049..b92cb79d38c3 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -536,7 +536,8 @@ asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, size_t len); /* kernel/hrtimer.c */ -asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp); +asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, + struct __kernel_timespec __user *rmtp); /* kernel/itimer.c */ asmlinkage long sys_getitimer(int which, struct itimerval __user *value); @@ -567,14 +568,14 @@ asmlinkage long sys_timer_settime(timer_t timer_id, int flags, struct itimerspec __user *old_setting); asmlinkage long sys_timer_delete(timer_t timer_id); asmlinkage long sys_clock_settime(clockid_t which_clock, - const struct timespec __user *tp); + const struct __kernel_timespec __user *tp); asmlinkage long sys_clock_gettime(clockid_t which_clock, - struct timespec __user *tp); + struct __kernel_timespec __user *tp); asmlinkage long sys_clock_getres(clockid_t which_clock, - struct timespec __user *tp); + struct __kernel_timespec __user *tp); asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags, - const struct timespec __user *rqtp, - struct timespec __user *rmtp); + const struct __kernel_timespec __user *rqtp, + struct __kernel_timespec __user *rmtp); /* kernel/printk.c */ asmlinkage long sys_syslog(int type, char __user *buf, int len); @@ -679,8 +680,8 @@ asmlinkage long sys_sysinfo(struct sysinfo __user *info); /* ipc/mqueue.c */ asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); asmlinkage long sys_mq_unlink(const char __user *name); -asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct timespec __user *abs_timeout); -asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct timespec __user *abs_timeout); +asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct __kernel_timespec __user *abs_timeout); +asmlinkage long sys_mq_timedreceive(mqd_t mqdes, char __user *msg_ptr, size_t msg_len, unsigned int __user *msg_prio, const struct __kernel_timespec __user *abs_timeout); asmlinkage long sys_mq_notify(mqd_t mqdes, const struct sigevent __user *notification); asmlinkage long sys_mq_getsetattr(mqd_t mqdes, const struct mq_attr __user *mqstat, struct mq_attr __user *omqstat); @@ -697,7 +698,7 @@ asmlinkage long sys_semget(key_t key, int nsems, int semflg); asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); asmlinkage long sys_semtimedop(int semid, struct sembuf __user *sops, unsigned nsops, - const struct timespec __user *timeout); + const struct __kernel_timespec __user *timeout); asmlinkage long sys_semop(int semid, struct sembuf __user *sops, unsigned nsops); diff --git a/include/linux/time.h b/include/linux/time.h index 4b62a2c0a661..aed74463592d 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -10,9 +10,9 @@ extern struct timezone sys_tz; int get_timespec64(struct timespec64 *ts, - const struct timespec __user *uts); + const struct __kernel_timespec __user *uts); int put_timespec64(const struct timespec64 *ts, - struct timespec __user *uts); + struct __kernel_timespec __user *uts); int get_itimerspec64(struct itimerspec64 *it, const struct itimerspec __user *uit); int put_itimerspec64(const struct itimerspec64 *it, diff --git a/include/linux/time64.h b/include/linux/time64.h index 93d39499838e..0d96887ba4e0 100644 --- a/include/linux/time64.h +++ b/include/linux/time64.h @@ -2,12 +2,20 @@ #ifndef _LINUX_TIME64_H #define _LINUX_TIME64_H -#include <uapi/linux/time.h> #include <linux/math64.h> typedef __s64 time64_t; typedef __u64 timeu64_t; +/* CONFIG_64BIT_TIME enables new 64 bit time_t syscalls in the compat path + * and 32-bit emulation. + */ +#ifndef CONFIG_64BIT_TIME +#define __kernel_timespec timespec +#endif + +#include <uapi/linux/time.h> + #if __BITS_PER_LONG == 64 /* this trick allows us to optimize out timespec64_to_timespec */ # define timespec64 timespec diff --git a/include/uapi/asm-generic/msgbuf.h b/include/uapi/asm-generic/msgbuf.h index fb306ebdb36f..9fe4881557cb 100644 --- a/include/uapi/asm-generic/msgbuf.h +++ b/include/uapi/asm-generic/msgbuf.h @@ -18,31 +18,30 @@ * On big-endian systems, the padding is in the wrong place. * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ struct msqid64_ds { struct ipc64_perm msg_perm; +#if __BITS_PER_LONG == 64 __kernel_time_t msg_stime; /* last msgsnd time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused1; -#endif __kernel_time_t msg_rtime; /* last msgrcv time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused2; -#endif __kernel_time_t msg_ctime; /* last change time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused3; +#else + unsigned long msg_stime; /* last msgsnd time */ + unsigned long msg_stime_high; + unsigned long msg_rtime; /* last msgrcv time */ + unsigned long msg_rtime_high; + unsigned long msg_ctime; /* last change time */ + unsigned long msg_ctime_high; #endif - __kernel_ulong_t msg_cbytes; /* current number of bytes on queue */ - __kernel_ulong_t msg_qnum; /* number of messages in queue */ - __kernel_ulong_t msg_qbytes; /* max number of bytes on queue */ + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ __kernel_pid_t msg_lspid; /* pid of last msgsnd */ __kernel_pid_t msg_lrpid; /* last receive pid */ - __kernel_ulong_t __unused4; - __kernel_ulong_t __unused5; + unsigned long __unused4; + unsigned long __unused5; }; #endif /* __ASM_GENERIC_MSGBUF_H */ diff --git a/include/uapi/asm-generic/posix_types.h b/include/uapi/asm-generic/posix_types.h index 5e6ea22bd525..f0733a26ebfc 100644 --- a/include/uapi/asm-generic/posix_types.h +++ b/include/uapi/asm-generic/posix_types.h @@ -87,6 +87,7 @@ typedef struct { typedef __kernel_long_t __kernel_off_t; typedef long long __kernel_loff_t; typedef __kernel_long_t __kernel_time_t; +typedef long long __kernel_time64_t; typedef __kernel_long_t __kernel_clock_t; typedef int __kernel_timer_t; typedef int __kernel_clockid_t; diff --git a/include/uapi/asm-generic/sembuf.h b/include/uapi/asm-generic/sembuf.h index cbf9cfe977d6..0bae010f1b64 100644 --- a/include/uapi/asm-generic/sembuf.h +++ b/include/uapi/asm-generic/sembuf.h @@ -13,23 +13,29 @@ * everyone just ended up making identical copies without specific * optimizations, so we may just as well all use the same one. * - * 64 bit architectures typically define a 64 bit __kernel_time_t, + * 64 bit architectures use a 64-bit __kernel_time_t here, while + * 32 bit architectures have a pair of unsigned long values. * so they do not need the first two padding words. - * On big-endian systems, the padding is in the wrong place. * - * Pad space is left for: - * - 64-bit time_t to solve y2038 problem - * - 2 miscellaneous 32-bit values + * On big-endian systems, the padding is in the wrong place for + * historic reasons, so user space has to reconstruct a time_t + * value using + * + * user_semid_ds.sem_otime = kernel_semid64_ds.sem_otime + + * ((long long)kernel_semid64_ds.sem_otime_high << 32) + * + * Pad space is left for 2 miscellaneous 32-bit values */ struct semid64_ds { struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ +#if __BITS_PER_LONG == 64 __kernel_time_t sem_otime; /* last semop time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused1; -#endif __kernel_time_t sem_ctime; /* last change time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused2; +#else + unsigned long sem_otime; /* last semop time */ + unsigned long sem_otime_high; + unsigned long sem_ctime; /* last change time */ + unsigned long sem_ctime_high; #endif unsigned long sem_nsems; /* no. of semaphores in array */ unsigned long __unused3; diff --git a/include/uapi/asm-generic/shmbuf.h b/include/uapi/asm-generic/shmbuf.h index 2b6c3bb97f97..e504422fc501 100644 --- a/include/uapi/asm-generic/shmbuf.h +++ b/include/uapi/asm-generic/shmbuf.h @@ -19,42 +19,41 @@ * * * Pad space is left for: - * - 64-bit time_t to solve y2038 problem * - 2 miscellaneous 32-bit values */ struct shmid64_ds { struct ipc64_perm shm_perm; /* operation perms */ size_t shm_segsz; /* size of segment (bytes) */ +#if __BITS_PER_LONG == 64 __kernel_time_t shm_atime; /* last attach time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused1; -#endif __kernel_time_t shm_dtime; /* last detach time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused2; -#endif __kernel_time_t shm_ctime; /* last change time */ -#if __BITS_PER_LONG != 64 - unsigned long __unused3; +#else + unsigned long shm_atime; /* last attach time */ + unsigned long shm_atime_high; + unsigned long shm_dtime; /* last detach time */ + unsigned long shm_dtime_high; + unsigned long shm_ctime; /* last change time */ + unsigned long shm_ctime_high; #endif __kernel_pid_t shm_cpid; /* pid of creator */ __kernel_pid_t shm_lpid; /* pid of last operator */ - __kernel_ulong_t shm_nattch; /* no. of current attaches */ - __kernel_ulong_t __unused4; - __kernel_ulong_t __unused5; + unsigned long shm_nattch; /* no. of current attaches */ + unsigned long __unused4; + unsigned long __unused5; }; struct shminfo64 { - __kernel_ulong_t shmmax; - __kernel_ulong_t shmmin; - __kernel_ulong_t shmmni; - __kernel_ulong_t shmseg; - __kernel_ulong_t shmall; - __kernel_ulong_t __unused1; - __kernel_ulong_t __unused2; - __kernel_ulong_t __unused3; - __kernel_ulong_t __unused4; + unsigned long shmmax; + unsigned long shmmin; + unsigned long shmmni; + unsigned long shmseg; + unsigned long shmall; + unsigned long __unused1; + unsigned long __unused2; + unsigned long __unused3; + unsigned long __unused4; }; #endif /* __ASM_GENERIC_SHMBUF_H */ diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h index 4c0338ea308a..fcf936656493 100644 --- a/include/uapi/linux/time.h +++ b/include/uapi/linux/time.h @@ -42,6 +42,13 @@ struct itimerval { struct timeval it_value; /* current value */ }; +#ifndef __kernel_timespec +struct __kernel_timespec { + __kernel_time64_t tv_sec; /* seconds */ + long long tv_nsec; /* nanoseconds */ +}; +#endif + /* * legacy timeval structure, only embedded in structures that * traditionally used 'timeval' to pass time intervals (not absolute diff --git a/ipc/mqueue.c b/ipc/mqueue.c index a808f29d4c5a..c0d58f390c3b 100644 --- a/ipc/mqueue.c +++ b/ipc/mqueue.c @@ -691,7 +691,7 @@ static void __do_notify(struct mqueue_inode_info *info) wake_up(&info->wait_q); } -static int prepare_timeout(const struct timespec __user *u_abs_timeout, +static int prepare_timeout(const struct __kernel_timespec __user *u_abs_timeout, struct timespec64 *ts) { if (get_timespec64(ts, u_abs_timeout)) @@ -1128,7 +1128,7 @@ out: SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr, size_t, msg_len, unsigned int, msg_prio, - const struct timespec __user *, u_abs_timeout) + const struct __kernel_timespec __user *, u_abs_timeout) { struct timespec64 ts, *p = NULL; if (u_abs_timeout) { @@ -1142,7 +1142,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr, SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr, size_t, msg_len, unsigned int __user *, u_msg_prio, - const struct timespec __user *, u_abs_timeout) + const struct __kernel_timespec __user *, u_abs_timeout) { struct timespec64 ts, *p = NULL; if (u_abs_timeout) { @@ -1420,6 +1420,47 @@ COMPAT_SYSCALL_DEFINE4(mq_open, const char __user *, u_name, return do_mq_open(u_name, oflag, mode, p); } +COMPAT_SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, + const struct compat_sigevent __user *, u_notification) +{ + struct sigevent n, *p = NULL; + if (u_notification) { + if (get_compat_sigevent(&n, u_notification)) + return -EFAULT; + if (n.sigev_notify == SIGEV_THREAD) + n.sigev_value.sival_ptr = compat_ptr(n.sigev_value.sival_int); + p = &n; + } + return do_mq_notify(mqdes, p); +} + +COMPAT_SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, + const struct compat_mq_attr __user *, u_mqstat, + struct compat_mq_attr __user *, u_omqstat) +{ + int ret; + struct mq_attr mqstat, omqstat; + struct mq_attr *new = NULL, *old = NULL; + + if (u_mqstat) { + new = &mqstat; + if (get_compat_mq_attr(new, u_mqstat)) + return -EFAULT; + } + if (u_omqstat) + old = &omqstat; + + ret = do_mq_getsetattr(mqdes, new, old); + if (ret || !old) + return ret; + + if (put_compat_mq_attr(old, u_omqstat)) + return -EFAULT; + return 0; +} +#endif + +#ifdef CONFIG_COMPAT_32BIT_TIME static int compat_prepare_timeout(const struct compat_timespec __user *p, struct timespec64 *ts) { @@ -1459,45 +1500,6 @@ COMPAT_SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, } return do_mq_timedreceive(mqdes, u_msg_ptr, msg_len, u_msg_prio, p); } - -COMPAT_SYSCALL_DEFINE2(mq_notify, mqd_t, mqdes, - const struct compat_sigevent __user *, u_notification) -{ - struct sigevent n, *p = NULL; - if (u_notification) { - if (get_compat_sigevent(&n, u_notification)) - return -EFAULT; - if (n.sigev_notify == SIGEV_THREAD) - n.sigev_value.sival_ptr = compat_ptr(n.sigev_value.sival_int); - p = &n; - } - return do_mq_notify(mqdes, p); -} - -COMPAT_SYSCALL_DEFINE3(mq_getsetattr, mqd_t, mqdes, - const struct compat_mq_attr __user *, u_mqstat, - struct compat_mq_attr __user *, u_omqstat) -{ - int ret; - struct mq_attr mqstat, omqstat; - struct mq_attr *new = NULL, *old = NULL; - - if (u_mqstat) { - new = &mqstat; - if (get_compat_mq_attr(new, u_mqstat)) - return -EFAULT; - } - if (u_omqstat) - old = &omqstat; - - ret = do_mq_getsetattr(mqdes, new, old); - if (ret || !old) - return ret; - - if (put_compat_mq_attr(old, u_omqstat)) - return -EFAULT; - return 0; -} #endif static const struct inode_operations mqueue_dir_inode_operations = { diff --git a/ipc/msg.c b/ipc/msg.c index 56fd1c73eedc..3b6545302598 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -537,6 +537,11 @@ static int msgctl_stat(struct ipc_namespace *ns, int msqid, p->msg_stime = msq->q_stime; p->msg_rtime = msq->q_rtime; p->msg_ctime = msq->q_ctime; +#ifndef CONFIG_64BIT + p->msg_stime_high = msq->q_stime >> 32; + p->msg_rtime_high = msq->q_rtime >> 32; + p->msg_ctime_high = msq->q_ctime >> 32; +#endif p->msg_cbytes = msq->q_cbytes; p->msg_qnum = msq->q_qnum; p->msg_qbytes = msq->q_qbytes; @@ -646,9 +651,12 @@ static int copy_compat_msqid_to_user(void __user *buf, struct msqid64_ds *in, struct compat_msqid64_ds v; memset(&v, 0, sizeof(v)); to_compat_ipc64_perm(&v.msg_perm, &in->msg_perm); - v.msg_stime = in->msg_stime; - v.msg_rtime = in->msg_rtime; - v.msg_ctime = in->msg_ctime; + v.msg_stime = lower_32_bits(in->msg_stime); + v.msg_stime_high = upper_32_bits(in->msg_stime); + v.msg_rtime = lower_32_bits(in->msg_rtime); + v.msg_rtime_high = upper_32_bits(in->msg_rtime); + v.msg_ctime = lower_32_bits(in->msg_ctime); + v.msg_ctime_high = upper_32_bits(in->msg_ctime); v.msg_cbytes = in->msg_cbytes; v.msg_qnum = in->msg_qnum; v.msg_qbytes = in->msg_qbytes; @@ -758,7 +766,7 @@ static inline int pipelined_send(struct msg_queue *msq, struct msg_msg *msg, WRITE_ONCE(msr->r_msg, ERR_PTR(-E2BIG)); } else { ipc_update_pid(&msq->q_lrpid, task_pid(msr->r_tsk)); - msq->q_rtime = get_seconds(); + msq->q_rtime = ktime_get_real_seconds(); wake_q_add(wake_q, msr->r_tsk); WRITE_ONCE(msr->r_msg, msg); @@ -859,7 +867,7 @@ static long do_msgsnd(int msqid, long mtype, void __user *mtext, } ipc_update_pid(&msq->q_lspid, task_tgid(current)); - msq->q_stime = get_seconds(); + msq->q_stime = ktime_get_real_seconds(); if (!pipelined_send(msq, msg, &wake_q)) { /* no one is waiting for this message, enqueue it */ @@ -1087,7 +1095,7 @@ static long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, in list_del(&msg->m_list); msq->q_qnum--; - msq->q_rtime = get_seconds(); + msq->q_rtime = ktime_get_real_seconds(); ipc_update_pid(&msq->q_lrpid, task_tgid(current)); msq->q_cbytes -= msg->m_ts; atomic_sub(msg->m_ts, &ns->msg_bytes); diff --git a/ipc/sem.c b/ipc/sem.c index 06be75d9217a..cfd94d48a9aa 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -70,6 +70,7 @@ * The worst-case behavior is nevertheless O(N^2) for N wakeups. */ +#include <linux/compat.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/init.h> @@ -104,7 +105,7 @@ struct sem { /* that alter the semaphore */ struct list_head pending_const; /* pending single-sop operations */ /* that do not alter the semaphore*/ - time_t sem_otime; /* candidate for sem_otime */ + time64_t sem_otime; /* candidate for sem_otime */ } ____cacheline_aligned_in_smp; /* One sem_array data structure for each set of semaphores in the system. */ @@ -984,10 +985,10 @@ again: static void set_semotime(struct sem_array *sma, struct sembuf *sops) { if (sops == NULL) { - sma->sems[0].sem_otime = get_seconds(); + sma->sems[0].sem_otime = ktime_get_real_seconds(); } else { sma->sems[sops[0].sem_num].sem_otime = - get_seconds(); + ktime_get_real_seconds(); } } @@ -1214,6 +1215,7 @@ static int semctl_stat(struct ipc_namespace *ns, int semid, int cmd, struct semid64_ds *semid64) { struct sem_array *sma; + time64_t semotime; int id = 0; int err; @@ -1257,8 +1259,13 @@ static int semctl_stat(struct ipc_namespace *ns, int semid, } kernel_to_ipc64_perm(&sma->sem_perm, &semid64->sem_perm); - semid64->sem_otime = get_semotime(sma); + semotime = get_semotime(sma); + semid64->sem_otime = semotime; semid64->sem_ctime = sma->sem_ctime; +#ifndef CONFIG_64BIT + semid64->sem_otime_high = semotime >> 32; + semid64->sem_ctime_high = sma->sem_ctime >> 32; +#endif semid64->sem_nsems = sma->sem_nsems; ipc_unlock_object(&sma->sem_perm); @@ -1704,8 +1711,10 @@ static int copy_compat_semid_to_user(void __user *buf, struct semid64_ds *in, struct compat_semid64_ds v; memset(&v, 0, sizeof(v)); to_compat_ipc64_perm(&v.sem_perm, &in->sem_perm); - v.sem_otime = in->sem_otime; - v.sem_ctime = in->sem_ctime; + v.sem_otime = lower_32_bits(in->sem_otime); + v.sem_otime_high = upper_32_bits(in->sem_otime); + v.sem_ctime = lower_32_bits(in->sem_ctime); + v.sem_ctime_high = upper_32_bits(in->sem_ctime); v.sem_nsems = in->sem_nsems; return copy_to_user(buf, &v, sizeof(v)); } else { @@ -2168,7 +2177,7 @@ out_free: } long ksys_semtimedop(int semid, struct sembuf __user *tsops, - unsigned int nsops, const struct timespec __user *timeout) + unsigned int nsops, const struct __kernel_timespec __user *timeout) { if (timeout) { struct timespec64 ts; @@ -2180,12 +2189,12 @@ long ksys_semtimedop(int semid, struct sembuf __user *tsops, } SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops, - unsigned int, nsops, const struct timespec __user *, timeout) + unsigned int, nsops, const struct __kernel_timespec __user *, timeout) { return ksys_semtimedop(semid, tsops, nsops, timeout); } -#ifdef CONFIG_COMPAT +#ifdef CONFIG_COMPAT_32BIT_TIME long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, unsigned int nsops, const struct compat_timespec __user *timeout) diff --git a/ipc/shm.c b/ipc/shm.c index 3cf48988d68c..0075990338f4 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -1002,6 +1002,11 @@ static int shmctl_stat(struct ipc_namespace *ns, int shmid, tbuf->shm_atime = shp->shm_atim; tbuf->shm_dtime = shp->shm_dtim; tbuf->shm_ctime = shp->shm_ctim; +#ifndef CONFIG_64BIT + tbuf->shm_atime_high = shp->shm_atim >> 32; + tbuf->shm_dtime_high = shp->shm_dtim >> 32; + tbuf->shm_ctime_high = shp->shm_ctim >> 32; +#endif tbuf->shm_cpid = pid_vnr(shp->shm_cprid); tbuf->shm_lpid = pid_vnr(shp->shm_lprid); tbuf->shm_nattch = shp->shm_nattch; @@ -1233,9 +1238,12 @@ static int copy_compat_shmid_to_user(void __user *buf, struct shmid64_ds *in, struct compat_shmid64_ds v; memset(&v, 0, sizeof(v)); to_compat_ipc64_perm(&v.shm_perm, &in->shm_perm); - v.shm_atime = in->shm_atime; - v.shm_dtime = in->shm_dtime; - v.shm_ctime = in->shm_ctime; + v.shm_atime = lower_32_bits(in->shm_atime); + v.shm_atime_high = upper_32_bits(in->shm_atime); + v.shm_dtime = lower_32_bits(in->shm_dtime); + v.shm_dtime_high = upper_32_bits(in->shm_dtime); + v.shm_ctime = lower_32_bits(in->shm_ctime); + v.shm_ctime_high = upper_32_bits(in->shm_ctime); v.shm_segsz = in->shm_segsz; v.shm_nattch = in->shm_nattch; v.shm_cpid = in->shm_cpid; diff --git a/ipc/syscall.c b/ipc/syscall.c index 77a883ef2eca..65d405f1ba0c 100644 --- a/ipc/syscall.c +++ b/ipc/syscall.c @@ -30,9 +30,14 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second, return ksys_semtimedop(first, (struct sembuf __user *)ptr, second, NULL); case SEMTIMEDOP: - return ksys_semtimedop(first, (struct sembuf __user *)ptr, - second, - (const struct timespec __user *)fifth); + if (IS_ENABLED(CONFIG_64BIT) || !IS_ENABLED(CONFIG_64BIT_TIME)) + return ksys_semtimedop(first, ptr, second, + (const struct __kernel_timespec __user *)fifth); + else if (IS_ENABLED(CONFIG_COMPAT_32BIT_TIME)) + return compat_ksys_semtimedop(first, ptr, second, + (const struct compat_timespec __user *)fifth); + else + return -ENOSYS; case SEMGET: return ksys_semget(first, second, third); @@ -130,6 +135,8 @@ COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second, /* struct sembuf is the same on 32 and 64bit :)) */ return ksys_semtimedop(first, compat_ptr(ptr), second, NULL); case SEMTIMEDOP: + if (!IS_ENABLED(CONFIG_COMPAT_32BIT_TIME)) + return -ENOSYS; return compat_ksys_semtimedop(first, compat_ptr(ptr), second, compat_ptr(fifth)); case SEMGET: diff --git a/ipc/util.h b/ipc/util.h index acc5159e96d0..0aba3230d007 100644 --- a/ipc/util.h +++ b/ipc/util.h @@ -251,7 +251,7 @@ static inline int compat_ipc_parse_version(int *cmd) /* for __ARCH_WANT_SYS_IPC */ long ksys_semtimedop(int semid, struct sembuf __user *tsops, unsigned int nsops, - const struct timespec __user *timeout); + const struct __kernel_timespec __user *timeout); long ksys_semget(key_t key, int nsems, int semflg); long ksys_semctl(int semid, int semnum, int cmd, unsigned long arg); long ksys_msgget(key_t key, int msgflg); @@ -265,10 +265,10 @@ long ksys_shmdt(char __user *shmaddr); long ksys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); /* for CONFIG_ARCH_WANT_OLD_COMPAT_IPC */ -#ifdef CONFIG_COMPAT long compat_ksys_semtimedop(int semid, struct sembuf __user *tsems, unsigned int nsops, const struct compat_timespec __user *timeout); +#ifdef CONFIG_COMPAT long compat_ksys_semctl(int semid, int semnum, int cmd, int arg); long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr); long compat_ksys_msgrcv(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz, diff --git a/kernel/compat.c b/kernel/compat.c index 92d8c98c0f57..702aa846ddac 100644 --- a/kernel/compat.c +++ b/kernel/compat.c @@ -121,50 +121,6 @@ static int __compat_put_timespec(const struct timespec *ts, struct compat_timesp __put_user(ts->tv_nsec, &cts->tv_nsec)) ? -EFAULT : 0; } -static int __compat_get_timespec64(struct timespec64 *ts64, - const struct compat_timespec __user *cts) -{ - struct compat_timespec ts; - int ret; - - ret = copy_from_user(&ts, cts, sizeof(ts)); - if (ret) - return -EFAULT; - - ts64->tv_sec = ts.tv_sec; - ts64->tv_nsec = ts.tv_nsec; - - return 0; -} - -static int __compat_put_timespec64(const struct timespec64 *ts64, - struct compat_timespec __user *cts) -{ - struct compat_timespec ts = { - .tv_sec = ts64->tv_sec, - .tv_nsec = ts64->tv_nsec - }; - return copy_to_user(cts, &ts, sizeof(ts)) ? -EFAULT : 0; -} - -int compat_get_timespec64(struct timespec64 *ts, const void __user *uts) -{ - if (COMPAT_USE_64BIT_TIME) - return copy_from_user(ts, uts, sizeof(*ts)) ? -EFAULT : 0; - else - return __compat_get_timespec64(ts, uts); -} -EXPORT_SYMBOL_GPL(compat_get_timespec64); - -int compat_put_timespec64(const struct timespec64 *ts, void __user *uts) -{ - if (COMPAT_USE_64BIT_TIME) - return copy_to_user(uts, ts, sizeof(*ts)) ? -EFAULT : 0; - else - return __compat_put_timespec64(ts, uts); -} -EXPORT_SYMBOL_GPL(compat_put_timespec64); - int compat_get_timeval(struct timeval *tv, const void __user *utv) { if (COMPAT_USE_64BIT_TIME) @@ -368,6 +324,14 @@ COMPAT_SYSCALL_DEFINE3(sched_getaffinity, compat_pid_t, pid, unsigned int, len, return ret; } +/* Todo: Delete these extern declarations when get/put_compat_itimerspec64() + * are moved to kernel/time/time.c . + */ +extern int __compat_get_timespec64(struct timespec64 *ts64, + const struct compat_timespec __user *cts); +extern int __compat_put_timespec64(const struct timespec64 *ts64, + struct compat_timespec __user *cts); + int get_compat_itimerspec64(struct itimerspec64 *its, const struct compat_itimerspec __user *uits) { diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 14e858753d76..055a4a728c00 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1759,8 +1759,10 @@ out: return ret; } -SYSCALL_DEFINE2(nanosleep, struct timespec __user *, rqtp, - struct timespec __user *, rmtp) +#if !defined(CONFIG_64BIT_TIME) || defined(CONFIG_64BIT) + +SYSCALL_DEFINE2(nanosleep, struct __kernel_timespec __user *, rqtp, + struct __kernel_timespec __user *, rmtp) { struct timespec64 tu; @@ -1775,7 +1777,9 @@ SYSCALL_DEFINE2(nanosleep, struct timespec __user *, rqtp, return hrtimer_nanosleep(&tu, HRTIMER_MODE_REL, CLOCK_MONOTONIC); } -#ifdef CONFIG_COMPAT +#endif + +#ifdef CONFIG_COMPAT_32BIT_TIME COMPAT_SYSCALL_DEFINE2(nanosleep, struct compat_timespec __user *, rqtp, struct compat_timespec __user *, rmtp) diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c index 69a937c3cd81..26aa9569e24a 100644 --- a/kernel/time/posix-stubs.c +++ b/kernel/time/posix-stubs.c @@ -59,7 +59,7 @@ SYS_NI(alarm); */ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, - const struct timespec __user *, tp) + const struct __kernel_timespec __user *, tp) { struct timespec64 new_tp; @@ -90,7 +90,7 @@ int do_clock_gettime(clockid_t which_clock, struct timespec64 *tp) return 0; } SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, - struct timespec __user *, tp) + struct __kernel_timespec __user *, tp) { int ret; struct timespec64 kernel_tp; @@ -104,7 +104,7 @@ SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, return 0; } -SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, struct timespec __user *, tp) +SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, struct __kernel_timespec __user *, tp) { struct timespec64 rtn_tp = { .tv_sec = 0, @@ -124,8 +124,8 @@ SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, struct timespec __us } SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, - const struct timespec __user *, rqtp, - struct timespec __user *, rmtp) + const struct __kernel_timespec __user *, rqtp, + struct __kernel_timespec __user *, rmtp) { struct timespec64 t; @@ -158,7 +158,9 @@ COMPAT_SYS_NI(timer_settime); COMPAT_SYS_NI(timer_gettime); COMPAT_SYS_NI(getitimer); COMPAT_SYS_NI(setitimer); +#endif +#ifdef CONFIG_COMPAT_32BIT_TIME COMPAT_SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, struct compat_timespec __user *, tp) { diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 10b7186d0638..e08ce3f27447 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1040,7 +1040,7 @@ void exit_itimers(struct signal_struct *sig) } SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, - const struct timespec __user *, tp) + const struct __kernel_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 new_tp; @@ -1055,7 +1055,7 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, } SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, - struct timespec __user *,tp) + struct __kernel_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 kernel_tp; @@ -1096,7 +1096,7 @@ SYSCALL_DEFINE2(clock_adjtime, const clockid_t, which_clock, } SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, - struct timespec __user *, tp) + struct __kernel_timespec __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 rtn_tp; @@ -1113,7 +1113,7 @@ SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, return error; } -#ifdef CONFIG_COMPAT +#ifdef CONFIG_COMPAT_32BIT_TIME COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock, struct compat_timespec __user *, tp) @@ -1148,6 +1148,10 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, return err; } +#endif + +#ifdef CONFIG_COMPAT + COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, struct compat_timex __user *, utp) { @@ -1172,6 +1176,10 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, return err; } +#endif + +#ifdef CONFIG_COMPAT_32BIT_TIME + COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, struct compat_timespec __user *, tp) { @@ -1203,8 +1211,8 @@ static int common_nsleep(const clockid_t which_clock, int flags, } SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, - const struct timespec __user *, rqtp, - struct timespec __user *, rmtp) + const struct __kernel_timespec __user *, rqtp, + struct __kernel_timespec __user *, rmtp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 t; @@ -1227,7 +1235,8 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, return kc->nsleep(which_clock, flags, &t); } -#ifdef CONFIG_COMPAT +#ifdef CONFIG_COMPAT_32BIT_TIME + COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, struct compat_timespec __user *, rqtp, struct compat_timespec __user *, rmtp) @@ -1252,6 +1261,7 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, return kc->nsleep(which_clock, flags, &t); } + #endif static const struct k_clock clock_realtime = { diff --git a/kernel/time/time.c b/kernel/time/time.c index 3044d48ebe56..ccd751e95fcb 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -853,9 +853,9 @@ struct timespec64 timespec64_add_safe(const struct timespec64 lhs, } int get_timespec64(struct timespec64 *ts, - const struct timespec __user *uts) + const struct __kernel_timespec __user *uts) { - struct timespec kts; + struct __kernel_timespec kts; int ret; ret = copy_from_user(&kts, uts, sizeof(kts)); @@ -863,6 +863,11 @@ int get_timespec64(struct timespec64 *ts, return -EFAULT; ts->tv_sec = kts.tv_sec; + + /* Zero out the padding for 32 bit systems or in compat mode */ + if (IS_ENABLED(CONFIG_64BIT_TIME) && (!IS_ENABLED(CONFIG_64BIT) || in_compat_syscall())) + kts.tv_nsec &= 0xFFFFFFFFUL; + ts->tv_nsec = kts.tv_nsec; return 0; @@ -870,16 +875,61 @@ int get_timespec64(struct timespec64 *ts, EXPORT_SYMBOL_GPL(get_timespec64); int put_timespec64(const struct timespec64 *ts, - struct timespec __user *uts) + struct __kernel_timespec __user *uts) { - struct timespec kts = { + struct __kernel_timespec kts = { .tv_sec = ts->tv_sec, .tv_nsec = ts->tv_nsec }; + return copy_to_user(uts, &kts, sizeof(kts)) ? -EFAULT : 0; } EXPORT_SYMBOL_GPL(put_timespec64); +int __compat_get_timespec64(struct timespec64 *ts64, + const struct compat_timespec __user *cts) +{ + struct compat_timespec ts; + int ret; + + ret = copy_from_user(&ts, cts, sizeof(ts)); + if (ret) + return -EFAULT; + + ts64->tv_sec = ts.tv_sec; + ts64->tv_nsec = ts.tv_nsec; + + return 0; +} + +int __compat_put_timespec64(const struct timespec64 *ts64, + struct compat_timespec __user *cts) +{ + struct compat_timespec ts = { + .tv_sec = ts64->tv_sec, + .tv_nsec = ts64->tv_nsec + }; + return copy_to_user(cts, &ts, sizeof(ts)) ? -EFAULT : 0; +} + +int compat_get_timespec64(struct timespec64 *ts, const void __user *uts) +{ + if (COMPAT_USE_64BIT_TIME) + return copy_from_user(ts, uts, sizeof(*ts)) ? -EFAULT : 0; + else + return __compat_get_timespec64(ts, uts); +} +EXPORT_SYMBOL_GPL(compat_get_timespec64); + +int compat_put_timespec64(const struct timespec64 *ts, void __user *uts) +{ + if (COMPAT_USE_64BIT_TIME) + return copy_to_user(uts, ts, sizeof(*ts)) ? -EFAULT : 0; + else + return __compat_put_timespec64(ts, uts); +} +EXPORT_SYMBOL_GPL(compat_put_timespec64); + int get_itimerspec64(struct itimerspec64 *it, const struct itimerspec __user *uit) { |