[XFS] stop using file_update_time

xfs_ichtime updates the xfs_inode and Linux inode timestamps just fine, no
need to call file_update_time and then copy the values over to the XFS
inode. The only additional thing in file_update_time are checks not
applicable to the write path.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31829a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: David Chinner <david@fromorbit.com>

1 files changed, 0 insertions, 39 deletions

diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 0e7ca2155956..91bcd979242c 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -133,45 +133,6 @@ xfs_ichgtime(
 }
 
 /*
- * Variant on the above which avoids querying the system clock
- * in situations where we know the Linux inode timestamps have
- * just been updated (and so we can update our inode cheaply).
- */
-void
-xfs_ichgtime_fast(
-        xfs_inode_t     *ip,
-        struct inode    *inode,
-        int             flags)
-{
-        timespec_t      *tvp;
-
-        if (flags & XFS_ICHGTIME_MOD) {
-                tvp = &inode->i_mtime;
-                ip->i_d.di_mtime.t_sec = (__int32_t)tvp->tv_sec;
-                ip->i_d.di_mtime.t_nsec = (__int32_t)tvp->tv_nsec;
-        }
-        if (flags & XFS_ICHGTIME_CHG) {
-                tvp = &inode->i_ctime;
-                ip->i_d.di_ctime.t_sec = (__int32_t)tvp->tv_sec;
-                ip->i_d.di_ctime.t_nsec = (__int32_t)tvp->tv_nsec;
-        }
-
-        /*
-         * We update the i_update_core field _after_ changing
-         * the timestamps in order to coordinate properly with
-         * xfs_iflush() so that we don't lose timestamp updates.
-         * This keeps us from having to hold the inode lock
-         * while doing this.  We use the SYNCHRONIZE macro to
-         * ensure that the compiler does not reorder the update
-         * of i_update_core above the timestamp updates above.
-         */
-        SYNCHRONIZE();
-        ip->i_update_core = 1;
-        if (!(inode->i_state & I_NEW))
-                mark_inode_dirty_sync(inode);
-}
-
-/*
  * Hook in SELinux.  This is not quite correct yet, what we really need
  * here (as we do for default ACLs) is a mechanism by which creation of
  * these attrs can be journalled at inode creation time (along with the