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-rw-r--r--fs/ext4/super.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index eb104e8476f0..d6d6e7db73d6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -763,6 +763,36 @@ __acquires(bitlock)
return;
}
+void ext4_mark_group_bitmap_corrupted(struct super_block *sb,
+ ext4_group_t group,
+ unsigned int flags)
+{
+ struct ext4_sb_info *sbi = EXT4_SB(sb);
+ struct ext4_group_info *grp = ext4_get_group_info(sb, group);
+ struct ext4_group_desc *gdp = ext4_get_group_desc(sb, group, NULL);
+
+ if ((flags & EXT4_GROUP_INFO_BBITMAP_CORRUPT) &&
+ !EXT4_MB_GRP_BBITMAP_CORRUPT(grp)) {
+ percpu_counter_sub(&sbi->s_freeclusters_counter,
+ grp->bb_free);
+ set_bit(EXT4_GROUP_INFO_BBITMAP_CORRUPT_BIT,
+ &grp->bb_state);
+ }
+
+ if ((flags & EXT4_GROUP_INFO_IBITMAP_CORRUPT) &&
+ !EXT4_MB_GRP_IBITMAP_CORRUPT(grp)) {
+ if (gdp) {
+ int count;
+
+ count = ext4_free_inodes_count(sb, gdp);
+ percpu_counter_sub(&sbi->s_freeinodes_counter,
+ count);
+ }
+ set_bit(EXT4_GROUP_INFO_IBITMAP_CORRUPT_BIT,
+ &grp->bb_state);
+ }
+}
+
void ext4_update_dynamic_rev(struct super_block *sb)
{
struct ext4_super_block *es = EXT4_SB(sb)->s_es;