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itimers: Move compat itimer syscalls to native ones

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get rid of set_fs(), sanitize compat copyin/copyout.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20170607084241.28657-12-viro@ZenIV.linux.org.uk
This commit is contained in:
Al Viro 2017-06-07 09:42:37 +01:00 • committed by Thomas Gleixner
parent b0dc12426e
commit 54ad9c46c2
4 changed files with 62 additions and 55 deletions
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4
include/linux/compat.h
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@ -94,6 +94,10 @@ struct compat_itimerval {
struct compat_timeval it_value;
};
struct itimerval;
int get_compat_itimerval(struct itimerval *, const struct compat_itimerval __user *);
int put_compat_itimerval(struct compat_itimerval __user *, const struct itimerval *);
struct compat_tms {
compat_clock_t tms_utime;
compat_clock_t tms_stime;