The patch titled
Subject: ocfs2: return -EROFS when filesystem becomes read-only
has been added to the -mm tree. Its filename is
ocfs2-return-erofs-when-filesystem-becomes-read-only.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-return-erofs-when-filesystem-becomes-read-only.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-return-erofs-when-filesystem-becomes-read-only.patch
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------------------------------------------------------
From: piaojun <piaojun@xxxxxxxxxx>
Subject: ocfs2: return -EROFS when filesystem becomes read-only
We should return -EROFS rather than other errno if filesystem becomes
read-only.
Link: http://lkml.kernel.org/r/5B191B26.9010501@xxxxxxxxxx
Signed-off-by: Jun Piao <piaojun@xxxxxxxxxx>
Reviewed-by: Yiwen Jiang <jiangyiwen@xxxxxxxxxx>
Acked-by: Joseph Qi <jiangqi903@xxxxxxxxx>
Cc: Mark Fasheh <mark@xxxxxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Cc: Changwei Ge <ge.changwei@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/alloc.c | 43 +++++++++++++++++----------------------
fs/ocfs2/localalloc.c | 9 +++-----
fs/ocfs2/quota_local.c | 15 ++++++-------
3 files changed, 30 insertions(+), 37 deletions(-)
diff -puN fs/ocfs2/alloc.c~ocfs2-return-erofs-when-filesystem-becomes-read-only fs/ocfs2/alloc.c
--- a/fs/ocfs2/alloc.c~ocfs2-return-erofs-when-filesystem-becomes-read-only
+++ a/fs/ocfs2/alloc.c
@@ -1481,19 +1481,17 @@ static int ocfs2_find_branch_target(stru
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 @@ rightmost_no_delete:
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_typ
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_typ
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 -puN fs/ocfs2/localalloc.c~ocfs2-return-erofs-when-filesystem-becomes-read-only fs/ocfs2/localalloc.c
--- a/fs/ocfs2/localalloc.c~ocfs2-return-erofs-when-filesystem-becomes-read-only
+++ a/fs/ocfs2/localalloc.c
@@ -663,11 +663,10 @@ int ocfs2_reserve_local_alloc_bits(struc
#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 -puN fs/ocfs2/quota_local.c~ocfs2-return-erofs-when-filesystem-becomes-read-only fs/ocfs2/quota_local.c
--- a/fs/ocfs2/quota_local.c~ocfs2-return-erofs-when-filesystem-becomes-read-only
+++ a/fs/ocfs2/quota_local.c
@@ -137,14 +137,13 @@ static int ocfs2_read_quota_block(struct
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)
_
Patches currently in -mm which might be from piaojun@xxxxxxxxxx are
ocfs2-return-erofs-when-filesystem-becomes-read-only.patch
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