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time: introduce {get,put}_itimerspec64

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As we change the user space type for the timerfd and posix timer
functions to newer data types, we need some form of conversion
helpers to avoid duplicating that logic.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Deepa Dinamani 2017-06-24 11:45:03 -07:00 • committed by Al Viro
parent f59dd9c886
commit d5b7ffbfbd
5 changed files with 68 additions and 1 deletions
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4
include/linux/compat.h
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@ -166,6 +166,10 @@ extern int compat_get_timeval(struct timeval *, const void __user *);
extern int compat_put_timeval(const struct timeval *, void __user *);
extern int compat_get_timespec64(struct timespec64 *, const void __user *);
extern int compat_put_timespec64(const struct timespec64 *, void __user *);
extern int get_compat_itimerspec64(struct itimerspec64 *its,
const struct compat_itimerspec __user *uits);
extern int put_compat_itimerspec64(const struct itimerspec64 *its,
struct compat_itimerspec __user *uits);
/*
* This function convert a timespec if necessary and returns a *user