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>
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@ -929,6 +929,15 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
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percpu_counter_add(&sbi->s_freeinodes_counter,
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EXT4_INODES_PER_GROUP(sb));
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if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
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ext4_group_t flex_group;
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flex_group = ext4_flex_group(sbi, input->group);
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sbi->s_flex_groups[flex_group].free_blocks +=
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input->free_blocks_count;
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sbi->s_flex_groups[flex_group].free_inodes +=
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EXT4_INODES_PER_GROUP(sb);
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}
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ext4_journal_dirty_metadata(handle, sbi->s_sbh);
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sb->s_dirt = 1;
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@ -1507,8 +1507,11 @@ static int ext4_fill_flex_info(struct super_block *sb)
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sbi->s_log_groups_per_flex = sbi->s_es->s_log_groups_per_flex;
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groups_per_flex = 1 << sbi->s_log_groups_per_flex;
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flex_group_count = (sbi->s_groups_count + groups_per_flex - 1) /
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groups_per_flex;
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/* We allocate both existing and potentially added groups */
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flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) +
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((sbi->s_es->s_reserved_gdt_blocks +1 ) <<
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EXT4_DESC_PER_BLOCK_BITS(sb))) /
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groups_per_flex;
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sbi->s_flex_groups = kzalloc(flex_group_count *
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sizeof(struct flex_groups), GFP_KERNEL);
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if (sbi->s_flex_groups == NULL) {
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