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Diffstat (limited to 'fs/ocfs2/suballoc.c')
-rw-r--r--fs/ocfs2/suballoc.c39
1 files changed, 14 insertions, 25 deletions
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 797f509d7250..766a00b26441 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -842,10 +842,9 @@ static int ocfs2_block_group_find_clear_bits(struct ocfs2_super *osb,
int offset, start, found, status = 0;
struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(osb->sb, bg);
- return -EIO;
- }
+ /* Callers got this descriptor from
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
found = start = best_offset = best_size = 0;
bitmap = bg->bg_bitmap;
@@ -910,11 +909,9 @@ static inline int ocfs2_block_group_set_bits(handle_t *handle,
mlog_entry_void();
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg);
- status = -EIO;
- goto bail;
- }
+ /* All callers get the descriptor via
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
BUG_ON(le16_to_cpu(bg->bg_free_bits_count) < num_bits);
mlog(0, "block_group_set_bits: off = %u, num = %u\n", bit_off,
@@ -983,16 +980,10 @@ static int ocfs2_relink_block_group(handle_t *handle,
struct ocfs2_group_desc *bg = (struct ocfs2_group_desc *) bg_bh->b_data;
struct ocfs2_group_desc *prev_bg = (struct ocfs2_group_desc *) prev_bg_bh->b_data;
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg);
- status = -EIO;
- goto out;
- }
- if (!OCFS2_IS_VALID_GROUP_DESC(prev_bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, prev_bg);
- status = -EIO;
- goto out;
- }
+ /* The caller got these descriptors from
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(prev_bg));
mlog(0, "Suballoc %llu, chain %u, move group %llu to top, prev = %llu\n",
(unsigned long long)le64_to_cpu(fe->i_blkno), chain,
@@ -1055,7 +1046,7 @@ out_rollback:
bg->bg_next_group = cpu_to_le64(bg_ptr);
prev_bg->bg_next_group = cpu_to_le64(prev_bg_ptr);
}
-out:
+
mlog_exit(status);
return status;
}
@@ -1758,11 +1749,9 @@ static inline int ocfs2_block_group_clear_bits(handle_t *handle,
mlog_entry_void();
- if (!OCFS2_IS_VALID_GROUP_DESC(bg)) {
- OCFS2_RO_ON_INVALID_GROUP_DESC(alloc_inode->i_sb, bg);
- status = -EIO;
- goto bail;
- }
+ /* The caller got this descriptor from
+ * ocfs2_read_group_descriptor(). Any corruption is a code bug. */
+ BUG_ON(!OCFS2_IS_VALID_GROUP_DESC(bg));
mlog(0, "off = %u, num = %u\n", bit_off, num_bits);