On Tue 20-03-12 16:41:22, Artem Bityutskiy wrote:
> From: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
>
> In some rather rare cases it is possible that ext4 may the superblock to the
> media twice. This patch makes sure this does not happen. This should speed up
> unmounting in those cases.
This cleanup looks OK.
Reviewed-by: Jan Kara <jack@xxxxxxx>
Honza
>
> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
> ---
> fs/ext4/super.c | 7 +++----
> 1 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index 502c61f..c1f5111 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -808,9 +808,6 @@ static void ext4_put_super(struct super_block *sb)
> destroy_workqueue(sbi->dio_unwritten_wq);
>
> lock_super(sb);
> - if (sb->s_dirt)
> - ext4_commit_super(sb, 1);
> -
> if (sbi->s_journal) {
> err = jbd2_journal_destroy(sbi->s_journal);
> sbi->s_journal = NULL;
> @@ -827,8 +824,10 @@ static void ext4_put_super(struct super_block *sb)
> if (!(sb->s_flags & MS_RDONLY)) {
> EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
> es->s_state = cpu_to_le16(sbi->s_mount_state);
> - ext4_commit_super(sb, 1);
> }
> + if (sb->s_dirt || !(sb->s_flags & MS_RDONLY))
> + ext4_commit_super(sb, 1);
> +
> if (sbi->s_proc) {
> remove_proc_entry(sb->s_id, ext4_proc_root);
> }
> --
> 1.7.7.6
>
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