ext4: update ctime and mtime for truncate with extents.

The recently announced "Linux POSIX file system test suite"
caught a truncate issue when using extents:
mtime and ctime are not updated when truncate is successful.

This is the single issue caught with "default" ext4 (mkfs and mount
with minimal options).
The testsuite does not report failure with -o noextents.

With the following patch, all tests of the testsuite pass.

Signed-off-by: Solofo Ramangalahy <Solofo.Ramangalahy@bull.net>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index a472bc046363bcf2563d688367da7f196c010362..47929c4e3dae66d104f5bdd6ac39f5436183dff5 100644 (file)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2809,6 +2809,8 @@ out_stop:
                ext4_orphan_del(handle, inode);
 
        up_write(&EXT4_I(inode)->i_data_sem);
+       inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
+       ext4_mark_inode_dirty(handle, inode);
        ext4_journal_stop(handle);
 }