From: Frederic Bohe Update flex_bg free blocks and free inodes counters when resizing. This fixes a bug which prevented the newly created inodes after a resize from being used on filesystems with flex_bg. Signed-off-by: Frederic Bohe Signed-off-by: "Theodore Ts'o" --- This patch fixes a bug which prevents to use the newly created inodes after a resize with flex bg. I am not sure if it is really usefull to update free blocks too, but it is definitely cleaner code. resize.c | 9 +++++++++ super.c | 7 +++++-- 2 files changed, 14 insertions(+), 2 deletions(-) Index: linux-2.6.27-rc5+patch_queue/fs/ext4/resize.c =================================================================== --- linux-2.6.27-rc5+patch_queue.orig/fs/ext4/resize.c 2008-09-01 11:23:09.000000000 +0200 +++ linux-2.6.27-rc5+patch_queue/fs/ext4/resize.c 2008-09-01 13:16:03.000000000 +0200 @@ -929,6 +929,15 @@ int ext4_group_add(struct super_block *s percpu_counter_add(&sbi->s_freeinodes_counter, EXT4_INODES_PER_GROUP(sb)); + if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG)) { + ext4_group_t flex_group; + flex_group = ext4_flex_group(sbi, input->group); + sbi->s_flex_groups[flex_group].free_blocks += + input->free_blocks_count; + sbi->s_flex_groups[flex_group].free_inodes += + EXT4_INODES_PER_GROUP(sb); + } + ext4_journal_dirty_metadata(handle, sbi->s_sbh); sb->s_dirt = 1; Index: linux-2.6.27-rc5+patch_queue/fs/ext4/super.c =================================================================== --- linux-2.6.27-rc5+patch_queue.orig/fs/ext4/super.c 2008-09-01 12:38:03.000000000 +0200 +++ linux-2.6.27-rc5+patch_queue/fs/ext4/super.c 2008-09-01 13:29:39.000000000 +0200 @@ -1507,8 +1507,11 @@ static int ext4_fill_flex_info(struct su sbi->s_log_groups_per_flex = sbi->s_es->s_log_groups_per_flex; groups_per_flex = 1 << sbi->s_log_groups_per_flex; - flex_group_count = (sbi->s_groups_count + groups_per_flex - 1) / - groups_per_flex; + /* We allocate both existing and potentially added groups */ + flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) + + ((sbi->s_es->s_reserved_gdt_blocks +1 ) << + EXT4_DESC_PER_BLOCK_BITS(sb))) / + groups_per_flex; sbi->s_flex_groups = kzalloc(flex_group_count * sizeof(struct flex_groups), GFP_KERNEL); if (sbi->s_flex_groups == NULL) { -- -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html