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Merge branch 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull vfs timestamp updates from Al Viro:
 "More 64bit timestamp work"

* 'imm.timestamp' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  kernfs: don't bother with timestamp truncation
  fs: Do not overload update_time
  fs: Delete timespec64_trunc()
  fs: ubifs: Eliminate timespec64_trunc() usage
  fs: ceph: Delete timespec64_trunc() usage
  fs: cifs: Delete usage of timespec64_trunc
  fs: fat: Eliminate timespec64_trunc() usage
  utimes: Clamp the timestamps in notify_change()
This commit is contained in:
Linus Torvalds 2020-02-05 05:02:42 +00:00
commit bddea11b1b
13 changed files with 61 additions and 107 deletions
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33
fs/inode.c
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@ -1683,12 +1683,9 @@ EXPORT_SYMBOL(generic_update_time);
*/
static int update_time(struct inode *inode, struct timespec64 *time, int flags)
{
int (*update_time)(struct inode *, struct timespec64 *, int);
update_time = inode->i_op->update_time ? inode->i_op->update_time :
generic_update_time;
return update_time(inode, time, flags);
if (inode->i_op->update_time)
return inode->i_op->update_time(inode, time, flags);
return generic_update_time(inode, time, flags);
}
/**
@ -2153,30 +2150,6 @@ void inode_nohighmem(struct inode *inode)
}
EXPORT_SYMBOL(inode_nohighmem);
/**
* timespec64_trunc - Truncate timespec64 to a granularity
* @t: Timespec64
* @gran: Granularity in ns.
*
* Truncate a timespec64 to a granularity. Always rounds down. gran must
* not be 0 nor greater than a second (NSEC_PER_SEC, or 10^9 ns).
*/
struct timespec64 timespec64_trunc(struct timespec64 t, unsigned gran)
{
/* Avoid division in the common cases 1 ns and 1 s. */
if (gran == 1) {
/* nothing */
} else if (gran == NSEC_PER_SEC) {
t.tv_nsec = 0;
} else if (gran > 1 && gran < NSEC_PER_SEC) {
t.tv_nsec -= t.tv_nsec % gran;
} else {
WARN(1, "illegal file time granularity: %u", gran);
}
return t;
}
EXPORT_SYMBOL(timespec64_trunc);
/**
* timestamp_truncate - Truncate timespec to a granularity
* @t: Timespec