diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2012-12-18 04:01:45 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-18 05:15:18 +0400 |
| commit | 0ad50c3896afbb3c103409a18260e601b87a744c (patch) | |
| tree | 3a59c1e90b3ee62daf18bc9689cf454a31f164be /arch/sparc | |
| parent | 918854a65e856574523d94763ef2a2b48ad55a25 (diff) | |
| download | linux-0ad50c3896afbb3c103409a18260e601b87a744c.tar.xz | |
compat: generic compat_sys_sched_rr_get_interval() implementation
This function is used by sparc, powerpc tile and arm64 for compat support.
The patch adds a generic implementation with a wrapper for PowerPC to do
the u32->int sign extension.
The reason for a single patch covering powerpc, tile, sparc and arm64 is
to keep it bisectable, otherwise kernel building may fail with mismatched
function declarations.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile]
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/include/asm/unistd.h | 1 | ||||
| -rw-r--r-- | arch/sparc/kernel/sys_sparc32.c | 14 |
2 files changed, 1 insertions, 14 deletions
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h index c3e5d8b64171..497386a7ed28 100644 --- a/arch/sparc/include/asm/unistd.h +++ b/arch/sparc/include/asm/unistd.h @@ -45,6 +45,7 @@ #define __ARCH_WANT_COMPAT_SYS_TIME #define __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND #define __ARCH_WANT_COMPAT_SYS_SENDFILE +#define __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL #endif #define __ARCH_WANT_SYS_EXECVE diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index 03c7e929ec34..4a4cdc633f6b 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -211,20 +211,6 @@ asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2) return sys_sysfs(option, arg1, arg2); } -asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval) -{ - struct timespec t; - int ret; - mm_segment_t old_fs = get_fs (); - - set_fs (KERNEL_DS); - ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t); - set_fs (old_fs); - if (put_compat_timespec(&t, interval)) - return -EFAULT; - return ret; -} - asmlinkage long compat_sys_rt_sigprocmask(int how, compat_sigset_t __user *set, compat_sigset_t __user *oset, |