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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 05:12:23 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 05:12:23 +0400 |
commit | a591afc01d9e48affbacb365558a31e53c85af45 (patch) | |
tree | 9bb91f4eb94ec69fc4706c4944788ec5f3586063 /net | |
parent | 820d41cf0cd0e94a5661e093821e2e5c6b36a9d8 (diff) | |
parent | 31796ac4e8f0e88f5c10f1ad6dab8f19bebe44a4 (diff) | |
download | linux-a591afc01d9e48affbacb365558a31e53c85af45.tar.xz |
Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x32 support for x86-64 from Ingo Molnar:
"This tree introduces the X32 binary format and execution mode for x86:
32-bit data space binaries using 64-bit instructions and 64-bit kernel
syscalls.
This allows applications whose working set fits into a 32 bits address
space to make use of 64-bit instructions while using a 32-bit address
space with shorter pointers, more compressed data structures, etc."
Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c}
* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
x32: Fix alignment fail in struct compat_siginfo
x32: Fix stupid ia32/x32 inversion in the siginfo format
x32: Add ptrace for x32
x32: Switch to a 64-bit clock_t
x32: Provide separate is_ia32_task() and is_x32_task() predicates
x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls
x86/x32: Fix the binutils auto-detect
x32: Warn and disable rather than error if binutils too old
x32: Only clear TIF_X32 flag once
x32: Make sure TS_COMPAT is cleared for x32 tasks
fs: Remove missed ->fds_bits from cessation use of fd_set structs internally
fs: Fix close_on_exec pointer in alloc_fdtable
x32: Drop non-__vdso weak symbols from the x32 VDSO
x32: Fix coding style violations in the x32 VDSO code
x32: Add x32 VDSO support
x32: Allow x32 to be configured
x32: If configured, add x32 system calls to system call tables
x32: Handle process creation
x32: Signal-related system calls
x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h>
...
Diffstat (limited to 'net')
-rw-r--r-- | net/bluetooth/hci_sock.c | 3 | ||||
-rw-r--r-- | net/compat.c | 65 | ||||
-rw-r--r-- | net/socket.c | 18 |
3 files changed, 50 insertions, 36 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 49142612916e..5914623f426a 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -733,7 +733,8 @@ static inline void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, struct sk_ data = &tv; len = sizeof(tv); #ifdef CONFIG_COMPAT - if (msg->msg_flags & MSG_CMSG_COMPAT) { + if (!COMPAT_USE_64BIT_TIME && + (msg->msg_flags & MSG_CMSG_COMPAT)) { ctv.tv_sec = tv.tv_sec; ctv.tv_usec = tv.tv_usec; data = &ctv; diff --git a/net/compat.c b/net/compat.c index 64b4515a64e6..e055708b8ec9 100644 --- a/net/compat.c +++ b/net/compat.c @@ -219,8 +219,6 @@ Efault: int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *data) { - struct compat_timeval ctv; - struct compat_timespec cts[3]; struct compat_cmsghdr __user *cm = (struct compat_cmsghdr __user *) kmsg->msg_control; struct compat_cmsghdr cmhdr; int cmlen; @@ -230,24 +228,28 @@ int put_cmsg_compat(struct msghdr *kmsg, int level, int type, int len, void *dat return 0; /* XXX: return error? check spec. */ } - if (level == SOL_SOCKET && type == SCM_TIMESTAMP) { - struct timeval *tv = (struct timeval *)data; - ctv.tv_sec = tv->tv_sec; - ctv.tv_usec = tv->tv_usec; - data = &ctv; - len = sizeof(ctv); - } - if (level == SOL_SOCKET && - (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { - int count = type == SCM_TIMESTAMPNS ? 1 : 3; - int i; - struct timespec *ts = (struct timespec *)data; - for (i = 0; i < count; i++) { - cts[i].tv_sec = ts[i].tv_sec; - cts[i].tv_nsec = ts[i].tv_nsec; + if (!COMPAT_USE_64BIT_TIME) { + struct compat_timeval ctv; + struct compat_timespec cts[3]; + if (level == SOL_SOCKET && type == SCM_TIMESTAMP) { + struct timeval *tv = (struct timeval *)data; + ctv.tv_sec = tv->tv_sec; + ctv.tv_usec = tv->tv_usec; + data = &ctv; + len = sizeof(ctv); + } + if (level == SOL_SOCKET && + (type == SCM_TIMESTAMPNS || type == SCM_TIMESTAMPING)) { + int count = type == SCM_TIMESTAMPNS ? 1 : 3; + int i; + struct timespec *ts = (struct timespec *)data; + for (i = 0; i < count; i++) { + cts[i].tv_sec = ts[i].tv_sec; + cts[i].tv_nsec = ts[i].tv_nsec; + } + data = &cts; + len = sizeof(cts[0]) * count; } - data = &cts; - len = sizeof(cts[0]) * count; } cmlen = CMSG_COMPAT_LEN(len); @@ -454,11 +456,15 @@ static int compat_sock_getsockopt(struct socket *sock, int level, int optname, int compat_sock_get_timestamp(struct sock *sk, struct timeval __user *userstamp) { - struct compat_timeval __user *ctv = - (struct compat_timeval __user *) userstamp; - int err = -ENOENT; + struct compat_timeval __user *ctv; + int err; struct timeval tv; + if (COMPAT_USE_64BIT_TIME) + return sock_get_timestamp(sk, userstamp); + + ctv = (struct compat_timeval __user *) userstamp; + err = -ENOENT; if (!sock_flag(sk, SOCK_TIMESTAMP)) sock_enable_timestamp(sk, SOCK_TIMESTAMP); tv = ktime_to_timeval(sk->sk_stamp); @@ -478,11 +484,15 @@ EXPORT_SYMBOL(compat_sock_get_timestamp); int compat_sock_get_timestampns(struct sock *sk, struct timespec __user *userstamp) { - struct compat_timespec __user *ctv = - (struct compat_timespec __user *) userstamp; - int err = -ENOENT; + struct compat_timespec __user *ctv; + int err; struct timespec ts; + if (COMPAT_USE_64BIT_TIME) + return sock_get_timestampns (sk, userstamp); + + ctv = (struct compat_timespec __user *) userstamp; + err = -ENOENT; if (!sock_flag(sk, SOCK_TIMESTAMP)) sock_enable_timestamp(sk, SOCK_TIMESTAMP); ts = ktime_to_timespec(sk->sk_stamp); @@ -767,6 +777,11 @@ asmlinkage long compat_sys_recvmmsg(int fd, struct compat_mmsghdr __user *mmsg, int datagrams; struct timespec ktspec; + if (COMPAT_USE_64BIT_TIME) + return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, + flags | MSG_CMSG_COMPAT, + (struct timespec *) timeout); + if (timeout == NULL) return __sys_recvmmsg(fd, (struct mmsghdr __user *)mmsg, vlen, flags | MSG_CMSG_COMPAT, NULL); diff --git a/net/socket.c b/net/socket.c index 12a48d846223..484cc6953fc6 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2592,7 +2592,7 @@ void socket_seq_show(struct seq_file *seq) #ifdef CONFIG_COMPAT static int do_siocgstamp(struct net *net, struct socket *sock, - unsigned int cmd, struct compat_timeval __user *up) + unsigned int cmd, void __user *up) { mm_segment_t old_fs = get_fs(); struct timeval ktv; @@ -2601,15 +2601,14 @@ static int do_siocgstamp(struct net *net, struct socket *sock, set_fs(KERNEL_DS); err = sock_do_ioctl(net, sock, cmd, (unsigned long)&ktv); set_fs(old_fs); - if (!err) { - err = put_user(ktv.tv_sec, &up->tv_sec); - err |= __put_user(ktv.tv_usec, &up->tv_usec); - } + if (!err) + err = compat_put_timeval(up, &ktv); + return err; } static int do_siocgstampns(struct net *net, struct socket *sock, - unsigned int cmd, struct compat_timespec __user *up) + unsigned int cmd, void __user *up) { mm_segment_t old_fs = get_fs(); struct timespec kts; @@ -2618,10 +2617,9 @@ static int do_siocgstampns(struct net *net, struct socket *sock, set_fs(KERNEL_DS); err = sock_do_ioctl(net, sock, cmd, (unsigned long)&kts); set_fs(old_fs); - if (!err) { - err = put_user(kts.tv_sec, &up->tv_sec); - err |= __put_user(kts.tv_nsec, &up->tv_nsec); - } + if (!err) + err = compat_put_timespec(up, &kts); + return err; } |