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-rw-r--r--fs/xfs/xfs_vnodeops.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 811ee874d86..b77dede91b7 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -633,6 +633,15 @@ xfs_setattr(
* Truncate file. Must have write permission and not be a directory.
*/
if (mask & XFS_AT_SIZE) {
+ /*
+ * Only change the c/mtime if we are changing the size
+ * or we are explicitly asked to change it. This handles
+ * the semantic difference between truncate() and ftruncate()
+ * as implemented in the VFS.
+ */
+ if (vap->va_size != ip->i_size || (mask & XFS_AT_CTIME))
+ timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG;
+
if (vap->va_size > ip->i_size) {
xfs_igrow_finish(tp, ip, vap->va_size,
!(flags & ATTR_DMI));
@@ -661,10 +670,6 @@ xfs_setattr(
*/
xfs_iflags_set(ip, XFS_ITRUNCATED);
}
- /*
- * Have to do this even if the file's size doesn't change.
- */
- timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG;
}
/*