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ntp: Move adjtimex related compat syscalls to native counterparts

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Get rid of set_fs() mess and sanitize compat_{get,put}_timex(),
while we are at it.

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/20170607084241.28657-9-viro@ZenIV.linux.org.uk
This commit is contained in:
Al Viro 2017-06-07 09:42:34 +01:00 • committed by Thomas Gleixner
parent fb923c4a3c
commit 3a4d44b616
5 changed files with 106 additions and 88 deletions
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4
include/linux/compat.h
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@ -128,6 +128,10 @@ struct compat_timex {
compat_int_t:32; compat_int_t:32; compat_int_t:32;
};
struct timex;
int compat_get_timex(struct timex *, const struct compat_timex __user *);
int compat_put_timex(struct compat_timex __user *, const struct timex *);
#define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
typedef struct {