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| author | Jan Kara <jack@suse.cz> | 2012-03-31 14:22:10 +0200 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2012-04-11 11:12:45 +0200 |
| commit | b838ec2232b764a4903707e212c62f681b32cd51 (patch) | |
| tree | 31967c9821f019d97fdb6882a0b31d41db3d10e5 /fs/ext2 | |
| parent | f2b2242081314ee4385f3b49d92b0adff8324d80 (diff) | |
| download | linux-b838ec2232b764a4903707e212c62f681b32cd51.tar.gz linux-b838ec2232b764a4903707e212c62f681b32cd51.tar.xz | |
ext2: Remove s_dirt handling
Places which modify superblock feature / state fields mark the superblock
buffer dirty so it is written out by flusher thread. Thus there's no need to
set s_dirt there.
The only other fields changing in the superblock are the numbers of free
blocks, free inodes and s_wtime. There's no real need to write (or even
compute) these periodically. Free blocks / inodes counters are recomputed on
every mount from group counters anyway and value of s_wtime is only
informational and imprecise anyway. So it should be enough to write these
opportunistically on mount, remount, umount, and sync_fs times.
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext2')
| -rw-r--r-- | fs/ext2/balloc.c | 2 | ||||
| -rw-r--r-- | fs/ext2/ialloc.c | 2 | ||||
| -rw-r--r-- | fs/ext2/super.c | 3 | ||||
| -rw-r--r-- | fs/ext2/xattr.c | 1 |
4 files changed, 0 insertions, 8 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c index a8cbe1bc6ad4..a9bba1e39200 100644 --- a/fs/ext2/balloc.c +++ b/fs/ext2/balloc.c @@ -165,7 +165,6 @@ static void release_blocks(struct super_block *sb, int count) struct ext2_sb_info *sbi = EXT2_SB(sb); percpu_counter_add(&sbi->s_freeblocks_counter, count); - sb->s_dirt = 1; } } @@ -180,7 +179,6 @@ static void group_adjust_blocks(struct super_block *sb, int group_no, free_blocks = le16_to_cpu(desc->bg_free_blocks_count); desc->bg_free_blocks_count = cpu_to_le16(free_blocks + count); spin_unlock(sb_bgl_lock(sbi, group_no)); - sb->s_dirt = 1; mark_buffer_dirty(bh); } } diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index 8b15cf8cef37..c13eb7b91a11 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -81,7 +81,6 @@ static void ext2_release_inode(struct super_block *sb, int group, int dir) spin_unlock(sb_bgl_lock(EXT2_SB(sb), group)); if (dir) percpu_counter_dec(&EXT2_SB(sb)->s_dirs_counter); - sb->s_dirt = 1; mark_buffer_dirty(bh); } @@ -543,7 +542,6 @@ got: } spin_unlock(sb_bgl_lock(sbi, group)); - sb->s_dirt = 1; mark_buffer_dirty(bh2); if (test_opt(sb, GRPID)) { inode->i_mode = mode; diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 12a7916cfa9d..a43f9adcc811 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -1158,7 +1158,6 @@ static void ext2_sync_super(struct super_block *sb, struct ext2_super_block *es, mark_buffer_dirty(EXT2_SB(sb)->s_sbh); if (wait) sync_dirty_buffer(EXT2_SB(sb)->s_sbh); - sb->s_dirt = 0; } /* @@ -1191,8 +1190,6 @@ void ext2_write_super(struct super_block *sb) { if (!(sb->s_flags & MS_RDONLY)) ext2_sync_fs(sb, 1); - else - sb->s_dirt = 0; } static int ext2_remount (struct super_block * sb, int * flags, char * data) diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c index 6dcafc7efdfd..b6754dbbce3c 100644 --- a/fs/ext2/xattr.c +++ b/fs/ext2/xattr.c @@ -339,7 +339,6 @@ static void ext2_xattr_update_super_block(struct super_block *sb) spin_lock(&EXT2_SB(sb)->s_lock); EXT2_SET_COMPAT_FEATURE(sb, EXT2_FEATURE_COMPAT_EXT_ATTR); spin_unlock(&EXT2_SB(sb)->s_lock); - sb->s_dirt = 1; mark_buffer_dirty(EXT2_SB(sb)->s_sbh); } |