[PATCHv6 2/5] ext4: Convert last user of ext4_mark_super_dirty() to ext4_handle_dirty_super()
From: Artem Bityutskiy <dedekind1@gmail.com>
Date: 2012-07-11 09:58:15
Also in:
linux-fsdevel, lkml
Subsystem:
ext4 file system, filesystems (vfs and infrastructure), the rest · Maintainers:
"Theodore Ts'o", Alexander Viro, Christian Brauner, Linus Torvalds
From: Jan Kara <jack@suse.cz> The last user of ext4_mark_super_dirty() in ext4_file_open() is so rare it can well be modifying the superblock properly by journalling the change. Change it and get rid of ext4_mark_super_dirty() as it's not needed anymore. Artem: small amendments. Artem: tested using xfstests for both journalled and non-journalled ext4. Signed-off-by: Jan Kara <jack@suse.cz> Tested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> --- fs/ext4/ext4.h | 9 --------- fs/ext4/file.c | 14 +++++++++++++- 2 files changed, 13 insertions(+), 10 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index cfc4e01..0c4042e 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h@@ -2321,15 +2321,6 @@ static inline void ext4_unlock_group(struct super_block *sb, spin_unlock(ext4_group_lock_ptr(sb, group)); } -static inline void ext4_mark_super_dirty(struct super_block *sb) -{ - struct ext4_super_block *es = EXT4_SB(sb)->s_es; - - ext4_superblock_csum_set(sb, es); - if (EXT4_SB(sb)->s_journal == NULL) - sb->s_dirt =1; -} - /* * Block validity checking */
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 8c7642a..3a77494 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c@@ -181,9 +181,21 @@ static int ext4_file_open(struct inode * inode, struct file * filp) path.dentry = mnt->mnt_root; cp = d_path(&path, buf, sizeof(buf)); if (!IS_ERR(cp)) { + handle_t *handle; + int err; + + handle = ext4_journal_start_sb(sb, 1); + if (IS_ERR(handle)) + return PTR_ERR(handle); + err = ext4_journal_get_write_access(handle, sbi->s_sbh); + if (err) { + ext4_journal_stop(handle); + return err; + } strlcpy(sbi->s_es->s_last_mounted, cp, sizeof(sbi->s_es->s_last_mounted)); - ext4_mark_super_dirty(sb); + ext4_handle_dirty_super(handle, sb); + ext4_journal_stop(handle); } } /*
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1.7.7.6