[XFS] fix, speedup and simplify atime handling let the VFS handle atime
updates and only sync back to the xfs inode when nessecary
SGI-PV: 946679
SGI-Modid: xfs-linux-melb:xfs-kern:203362a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 15734c5..688fc2c 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -182,8 +182,8 @@
break;
}
- vap->va_atime.tv_sec = ip->i_d.di_atime.t_sec;
- vap->va_atime.tv_nsec = ip->i_d.di_atime.t_nsec;
+ /* atime is only kept uptodate in the Linux inode */
+ vap->va_atime = vp->v_inode.i_atime;
vap->va_mtime.tv_sec = ip->i_d.di_mtime.t_sec;
vap->va_mtime.tv_nsec = ip->i_d.di_mtime.t_nsec;
vap->va_ctime.tv_sec = ip->i_d.di_ctime.t_sec;
@@ -982,10 +982,6 @@
goto error_return;
}
- if (!(ioflags & IO_INVIS)) {
- xfs_ichgtime(ip, XFS_ICHGTIME_ACC);
- }
-
/*
* See if the symlink is stored inline.
*/
@@ -3226,7 +3222,6 @@
xfs_trans_t *tp = NULL;
int error = 0;
uint lock_mode;
- xfs_off_t start_offset;
vn_trace_entry(BHV_TO_VNODE(dir_bdp), __FUNCTION__,
(inst_t *)__return_address);
@@ -3237,11 +3232,7 @@
}
lock_mode = xfs_ilock_map_shared(dp);
- start_offset = uiop->uio_offset;
error = XFS_DIR_GETDENTS(dp->i_mount, tp, dp, uiop, eofp);
- if (start_offset != uiop->uio_offset) {
- xfs_ichgtime(dp, XFS_ICHGTIME_ACC);
- }
xfs_iunlock_map_shared(dp, lock_mode);
return error;
}
@@ -3819,6 +3810,12 @@
ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);
+ /*
+ * Make sure the atime in the XFS inode is correct before freeing the
+ * Linux inode.
+ */
+ xfs_synchronize_atime(ip);
+
/* If we have nothing to flush with this inode then complete the
* teardown now, otherwise break the link between the xfs inode
* and the linux inode and clean up the xfs inode later. This