This is a note to let you know that I've just added the patch titled ext4: set lazytime on remount if MS_LAZYTIME is set by mount to the 4.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ext4-set-lazytime-on-remount-if-ms_lazytime-is-set-by-mount.patch and it can be found in the queue-4.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From a2fd66d069d86d793e9d39d4079b96f46d13f237 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@xxxxxxx> Date: Tue, 23 Jun 2015 11:03:54 -0400 Subject: ext4: set lazytime on remount if MS_LAZYTIME is set by mount From: Theodore Ts'o <tytso@xxxxxxx> commit a2fd66d069d86d793e9d39d4079b96f46d13f237 upstream. Newer versions of mount parse the lazytime feature and pass it to the mount system call via the flags field in the mount system call, removing the lazytime string from the mount options list. So we need to check for the presence of MS_LAZYTIME and set it in sb->s_flags in order for this flag to be set on a remount. Signed-off-by: Theodore Ts'o <tytso@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/ext4/super.c | 3 +++ 1 file changed, 3 insertions(+) --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4944,6 +4944,9 @@ static int ext4_remount(struct super_blo set_task_ioprio(sbi->s_journal->j_task, journal_ioprio); } + if (*flags & MS_LAZYTIME) + sb->s_flags |= MS_LAZYTIME; + if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) { if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) { err = -EROFS; Patches currently in stable-queue which might be from tytso@xxxxxxx are queue-4.1/ext4-correctly-migrate-a-file-with-a-hole-at-the-beginning.patch queue-4.1/ext4-set-lazytime-on-remount-if-ms_lazytime-is-set-by-mount.patch queue-4.1/jbd2-fix-ocfs2-corrupt-when-updating-journal-superblock-fails.patch queue-4.1/ext4-be-more-strict-when-migrating-to-non-extent-based-file.patch queue-4.1/jbd2-use-gfp_nofs-in-jbd2_cleanup_journal_tail.patch queue-4.1/ext4-fix-fencepost-error-in-lazytime-optimization.patch queue-4.1/ext4-replace-open-coded-nofail-allocation-in-ext4_free_blocks.patch queue-4.1/ext4-don-t-retry-file-block-mapping-on-bigalloc-fs-with-non-extent-file.patch queue-4.1/bufferhead-add-_gfp-version-for-sb_getblk.patch queue-4.1/ext4-avoid-deadlocks-in-the-writeback-path-by-using-sb_getblk_gfp.patch queue-4.1/ext4-call-sync_blockdev-before-invalidate_bdev-in-put_super.patch queue-4.1/ext4-fix-race-between-truncate-and-__ext4_journalled_writepage.patch queue-4.1/ext4-fix-reservation-release-on-invalidatepage-for-delalloc-fs.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html