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ocfs2: return -EROFS when filesystem becomes read-only
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We should return -EROFS rather than other errno if filesystem becomes
read-only.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jun Piao <[email protected]>
Reviewed-by: Yiwen Jiang <[email protected]>
Acked-by: Joseph Qi <[email protected]>
Cc: Mark Fasheh <[email protected]>
Cc: Joel Becker <[email protected]>
Cc: Junxiao Bi <[email protected]>
Cc: Changwei Ge <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Stephen Rothwell <[email protected]>
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@JunPiaoHW @sfrothwell
JunPiaoHW authored and sfrothwell committed Jul 11, 2018
1 parent 82cbfe7 commit 2faf021
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Showing 3 changed files with 30 additions and 37 deletions.
43 changes: 19 additions & 24 deletions fs/ocfs2/alloc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1481,19 +1481,17 @@ static int ocfs2_find_branch_target(struct ocfs2_extent_tree *et,

while(le16_to_cpu(el->l_tree_depth) > 1) {
if (le16_to_cpu(el->l_next_free_rec) == 0) {
ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
"Owner %llu has empty extent list (next_free_rec == 0)\n",
(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci));
status = -EIO;
status = ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
"Owner %llu has empty extent list (next_free_rec == 0)\n",
(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci));
goto bail;
}
i = le16_to_cpu(el->l_next_free_rec) - 1;
blkno = le64_to_cpu(el->l_recs[i].e_blkno);
if (!blkno) {
ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
"Owner %llu has extent list where extent # %d has no physical block start\n",
(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci), i);
status = -EIO;
status = ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
"Owner %llu has extent list where extent # %d has no physical block start\n",
(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci), i);
goto bail;
}

Expand Down Expand Up @@ -3214,11 +3212,10 @@ static int ocfs2_rotate_tree_left(handle_t *handle,
goto rightmost_no_delete;

if (le16_to_cpu(el->l_next_free_rec) == 0) {
ret = -EIO;
ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
"Owner %llu has empty extent block at %llu\n",
(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
(unsigned long long)le64_to_cpu(eb->h_blkno));
ret = ocfs2_error(ocfs2_metadata_cache_get_super(et->et_ci),
"Owner %llu has empty extent block at %llu\n",
(unsigned long long)ocfs2_metadata_cache_owner(et->et_ci),
(unsigned long long)le64_to_cpu(eb->h_blkno));
goto out;
}

Expand Down Expand Up @@ -4411,12 +4408,11 @@ static int ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et,
le16_to_cpu(new_el->l_count)) {
bh = path_leaf_bh(left_path);
eb = (struct ocfs2_extent_block *)bh->b_data;
ocfs2_error(sb,
"Extent block #%llu has an invalid l_next_free_rec of %d. It should have matched the l_count of %d\n",
(unsigned long long)le64_to_cpu(eb->h_blkno),
le16_to_cpu(new_el->l_next_free_rec),
le16_to_cpu(new_el->l_count));
status = -EINVAL;
status = ocfs2_error(sb,
"Extent block #%llu has an invalid l_next_free_rec of %d. It should have matched the l_count of %d\n",
(unsigned long long)le64_to_cpu(eb->h_blkno),
le16_to_cpu(new_el->l_next_free_rec),
le16_to_cpu(new_el->l_count));
goto free_left_path;
}
rec = &new_el->l_recs[
Expand Down Expand Up @@ -4466,11 +4462,10 @@ static int ocfs2_figure_merge_contig_type(struct ocfs2_extent_tree *et,
if (le16_to_cpu(new_el->l_next_free_rec) <= 1) {
bh = path_leaf_bh(right_path);
eb = (struct ocfs2_extent_block *)bh->b_data;
ocfs2_error(sb,
"Extent block #%llu has an invalid l_next_free_rec of %d\n",
(unsigned long long)le64_to_cpu(eb->h_blkno),
le16_to_cpu(new_el->l_next_free_rec));
status = -EINVAL;
status = ocfs2_error(sb,
"Extent block #%llu has an invalid l_next_free_rec of %d\n",
(unsigned long long)le64_to_cpu(eb->h_blkno),
le16_to_cpu(new_el->l_next_free_rec));
goto free_right_path;
}
rec = &new_el->l_recs[1];
Expand Down
9 changes: 4 additions & 5 deletions fs/ocfs2/localalloc.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -663,11 +663,10 @@ int ocfs2_reserve_local_alloc_bits(struct ocfs2_super *osb,
#ifdef CONFIG_OCFS2_DEBUG_FS
if (le32_to_cpu(alloc->id1.bitmap1.i_used) !=
ocfs2_local_alloc_count_bits(alloc)) {
ocfs2_error(osb->sb, "local alloc inode %llu says it has %u used bits, but a count shows %u\n",
(unsigned long long)le64_to_cpu(alloc->i_blkno),
le32_to_cpu(alloc->id1.bitmap1.i_used),
ocfs2_local_alloc_count_bits(alloc));
status = -EIO;
status = ocfs2_error(osb->sb, "local alloc inode %llu says it has %u used bits, but a count shows %u\n",
(unsigned long long)le64_to_cpu(alloc->i_blkno),
le32_to_cpu(alloc->id1.bitmap1.i_used),
ocfs2_local_alloc_count_bits(alloc));
goto bail;
}
#endif
Expand Down
15 changes: 7 additions & 8 deletions fs/ocfs2/quota_local.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -137,14 +137,13 @@ static int ocfs2_read_quota_block(struct inode *inode, u64 v_block,
int rc = 0;
struct buffer_head *tmp = *bh;

if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block) {
ocfs2_error(inode->i_sb,
"Quota file %llu is probably corrupted! Requested to read block %Lu but file has size only %Lu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
(unsigned long long)v_block,
(unsigned long long)i_size_read(inode));
return -EIO;
}
if (i_size_read(inode) >> inode->i_sb->s_blocksize_bits <= v_block)
return ocfs2_error(inode->i_sb,
"Quota file %llu is probably corrupted! Requested to read block %Lu but file has size only %Lu\n",
(unsigned long long)OCFS2_I(inode)->ip_blkno,
(unsigned long long)v_block,
(unsigned long long)i_size_read(inode));

rc = ocfs2_read_virt_blocks(inode, v_block, 1, &tmp, 0,
ocfs2_validate_quota_block);
if (rc)
Expand Down

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