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authorFrederic Bohe <frederic.bohe@bull.net>2008-09-08 10:20:24 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-09-08 10:20:24 -0400
commitc62a11fd9555007b1caab83b5bcbb443a43e32bb (patch)
tree1bdafd4b2d7911c1148ac68f888eb0d47977b276
parent9d9f177572d9e4eba0f2e18523b44f90dd51fe74 (diff)
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 <frederic.bohe@bull.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
-rw-r--r--fs/ext4/resize.c9
-rw-r--r--fs/ext4/super.c7
2 files changed, 14 insertions, 2 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 4392e3fd0f0..b60afbcd7e4 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -929,6 +929,15 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
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;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index efa40d9d379..f58cc0309dc 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1507,8 +1507,11 @@ static int ext4_fill_flex_info(struct super_block *sb)
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) {