From patchwork Thu Oct 25 07:25:43 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: ext4: Automatic setting of {INODE,BLOCK}_UNINIT flags From: Tomas Racek X-Patchwork-Id: 194063 Message-Id: <1351149943-4827-1-git-send-email-tracek@redhat.com> To: linux-ext4@vger.kernel.org Cc: lczerner@redhat.com, Tomas Racek Date: Thu, 25 Oct 2012 09:25:43 +0200 When last inode from bg is freed, set the INODE_UNINIT flag, similarly when last block is freed, set BLOCK_UNINIT flag. This can speed up subsequent fsck run. Signed-off-by: Tomas Racek --- fs/ext4/ialloc.c | 4 ++++ fs/ext4/mballoc.c | 4 ++++ 2 files changed, 8 insertions(+) diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index 4facdd2..6e4b982 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -289,6 +289,10 @@ void ext4_free_inode(handle_t *handle, struct inode *inode) count = ext4_free_inodes_count(sb, gdp) + 1; ext4_free_inodes_set(sb, gdp, count); + + if (count == EXT4_INODES_PER_GROUP(sb)) + gdp->bg_flags |= cpu_to_le16(EXT4_BG_INODE_UNINIT); + if (is_directory) { count = ext4_used_dirs_count(sb, gdp) - 1; ext4_used_dirs_set(sb, gdp, count); diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index 526e553..28bce35 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4665,6 +4665,10 @@ do_more: ret = ext4_free_group_clusters(sb, gdp) + count_clusters; ext4_free_group_clusters_set(sb, gdp, ret); + + if(ret == EXT4_BLOCKS_PER_GROUP(sb)) + gdp->bg_flags |= cpu_to_le16(EXT4_BG_BLOCK_UNINIT); + ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh); ext4_group_desc_csum_set(sb, block_group, gdp); ext4_unlock_group(sb, block_group);