[Ocfs2-devel] [PATCH v2] ocfs2: return -EROFS when filesystem becomes read-only
Joseph Qi
jiangqi903 at gmail.com
Thu Jun 7 20:17:04 PDT 2018
On 18/6/7 19:46, piaojun wrote:
> We should return -EROFS rather than other errno if filesystem becomes
> read-only.
>
> Signed-off-by: Jun Piao <piaojun at huawei.com>
> Reviewed-by: Yiwen Jiang <jiangyiwen at huawei.com>
Acked-by: Joseph Qi <jiangqi903 at gmail.com>
> ---
> fs/ocfs2/alloc.c | 43 +++++++++++++++++++------------------------
> fs/ocfs2/localalloc.c | 9 ++++-----
> fs/ocfs2/quota_local.c | 15 +++++++--------
> 3 files changed, 30 insertions(+), 37 deletions(-)
>
> diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
> index 0f157bb..ccf8093 100644
> --- a/fs/ocfs2/alloc.c
> +++ b/fs/ocfs2/alloc.c
> @@ -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;
> }
>
> @@ -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;
> }
>
> @@ -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[
> @@ -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];
> diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
> index fe0d1f9..1b56c22 100644
> --- a/fs/ocfs2/localalloc.c
> +++ b/fs/ocfs2/localalloc.c
> @@ -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
> diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
> index 16c42ed..9c2e4fa 100644
> --- a/fs/ocfs2/quota_local.c
> +++ b/fs/ocfs2/quota_local.c
> @@ -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)
>
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