diff options
author | James Morris <james.l.morris@oracle.com> | 2017-09-24 22:41:55 -0700 |
---|---|---|
committer | James Morris <james.l.morris@oracle.com> | 2017-09-24 22:41:55 -0700 |
commit | 25eabb13c7d67ae32298015c5e28d00f604f412c (patch) | |
tree | 5bd75c2c1e385c79425bb099f0d19db7fb9c391f /include/linux/time.h | |
parent | ab5348c9c23cd253f5902980d2d8fe067dc24c82 (diff) | |
parent | e19b205be43d11bff638cad4487008c48d21c103 (diff) |
Merge tag 'v4.14-rc2' into next-general
Linux 4.14-rc2
Sync to v4.14-rc2 for security subsystem developers to track.
Diffstat (limited to 'include/linux/time.h')
-rw-r--r-- | include/linux/time.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/time.h b/include/linux/time.h index 4abb32d4c6b8..9bc1f945777c 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -178,7 +178,7 @@ extern int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue); extern int do_getitimer(int which, struct itimerval *value); -extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags); +extern long do_utimes(int dfd, const char __user *filename, struct timespec64 *times, int flags); /* * Similar to the struct tm in userspace <time.h>, but it needs to be here so @@ -285,4 +285,19 @@ static inline bool itimerspec64_valid(const struct itimerspec64 *its) return true; } +/** + * time_after32 - compare two 32-bit relative times + * @a: the time which may be after @b + * @b: the time which may be before @a + * + * time_after32(a, b) returns true if the time @a is after time @b. + * time_before32(b, a) returns true if the time @b is before time @a. + * + * Similar to time_after(), compare two 32-bit timestamps for relative + * times. This is useful for comparing 32-bit seconds values that can't + * be converted to 64-bit values (e.g. due to disk format or wire protocol + * issues) when it is known that the times are less than 68 years apart. + */ +#define time_after32(a, b) ((s32)((u32)(b) - (u32)(a)) < 0) +#define time_before32(b, a) time_after32(a, b) #endif |