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| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-05-31 04:42:07 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-06-09 23:51:38 -0400 |
| commit | 8f13621abcedb278cfecf9703583743f9c474c97 (patch) | |
| tree | a235b2e6a8e5a071678853f0d74f5430a0f0dad6 /kernel | |
| parent | d9e968cb9f849770288f5fde3d8d3a5f7e339052 (diff) | |
| download | linux-8f13621abcedb278cfecf9703583743f9c474c97.tar.bz2 | |
sigpending(): move compat to native
... and kill set_fs() use
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/compat.c | 23 | ||||
| -rw-r--r-- | kernel/signal.c | 12 |
2 files changed, 12 insertions, 23 deletions
diff --git a/kernel/compat.c b/kernel/compat.c index 58b8e57398d1..195e23469854 100644 --- a/kernel/compat.c +++ b/kernel/compat.c @@ -350,29 +350,6 @@ COMPAT_SYSCALL_DEFINE3(setitimer, int, which, return 0; } -#ifdef __ARCH_WANT_SYS_SIGPENDING - -/* - * Assumption: old_sigset_t and compat_old_sigset_t are both - * types that can be passed to put_user()/get_user(). - */ - -COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set) -{ - old_sigset_t s; - long ret; - mm_segment_t old_fs = get_fs(); - - set_fs(KERNEL_DS); - ret = sys_sigpending((old_sigset_t __user *) &s); - set_fs(old_fs); - if (ret == 0) - ret = put_user(s, set); - return ret; -} - -#endif - #ifdef __ARCH_WANT_SYS_SIGPROCMASK /* diff --git a/kernel/signal.c b/kernel/signal.c index d1eed0d7ca64..6237f492adfc 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -3254,6 +3254,18 @@ SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set) return sys_rt_sigpending((sigset_t __user *)set, sizeof(old_sigset_t)); } +#ifdef CONFIG_COMPAT +COMPAT_SYSCALL_DEFINE1(sigpending, compat_old_sigset_t __user *, set32) +{ + sigset_t set; + int err = do_sigpending(&set, sizeof(old_sigset_t)); + if (err == 0) + if (copy_to_user(set32, &set, sizeof(old_sigset_t))) + err = -EFAULT; + return err; +} +#endif + #endif #ifdef __ARCH_WANT_SYS_SIGPROCMASK |