akpm at linux-foundation.org
2015-Apr-07 21:55 UTC
[Ocfs2-devel] [patch 4/9] ocfs2: acknowledge return value of ocfs2_error()
From: Goldwyn Rodrigues <rgoldwyn at suse.de>
Subject: ocfs2: acknowledge return value of ocfs2_error()
Caveat: This may return -EROFS for a read case, which seems wrong. This
is happening even without this patch series though. Should we convert
EROFS to EIO?
Signed-off-by: Goldwyn Rodrigues <rgoldwyn at suse.com>
Cc: Mark Fasheh <mfasheh at suse.com>
Cc: Joel Becker <jlbec at evilplan.org>
Signed-off-by: Andrew Morton <akpm at linux-foundation.org>
---
fs/ocfs2/alloc.c | 16 +++++++-------
fs/ocfs2/dir.c | 25 ++++++++--------------
fs/ocfs2/inode.c | 8 +++----
fs/ocfs2/move_extents.c | 3 --
fs/ocfs2/refcounttree.c | 42 ++++++++++++++++----------------------
fs/ocfs2/suballoc.c | 25 +++++-----------------
fs/ocfs2/xattr.c | 15 ++++---------
7 files changed, 51 insertions(+), 83 deletions(-)
diff -puN fs/ocfs2/alloc.c~acknowledge-return-value-of-ocfs2_error
fs/ocfs2/alloc.c
--- a/fs/ocfs2/alloc.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/alloc.c
@@ -908,32 +908,32 @@ static int ocfs2_validate_extent_block(s
*/
if (!OCFS2_IS_VALID_EXTENT_BLOCK(eb)) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Extent block #%llu has bad signature %.*s",
(unsigned long long)bh->b_blocknr, 7,
eb->h_signature);
- return -EINVAL;
+ goto bail;
}
if (le64_to_cpu(eb->h_blkno) != bh->b_blocknr) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Extent block #%llu has an invalid h_blkno "
"of %llu",
(unsigned long long)bh->b_blocknr,
(unsigned long long)le64_to_cpu(eb->h_blkno));
- return -EINVAL;
+ goto bail;
}
if (le32_to_cpu(eb->h_fs_generation) != OCFS2_SB(sb)->fs_generation) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Extent block #%llu has an invalid "
"h_fs_generation of #%u",
(unsigned long long)bh->b_blocknr,
le32_to_cpu(eb->h_fs_generation));
- return -EINVAL;
+ goto bail;
}
-
- return 0;
+bail:
+ return rc;
}
int ocfs2_read_extent_block(struct ocfs2_caching_info *ci, u64 eb_blkno,
diff -puN fs/ocfs2/dir.c~acknowledge-return-value-of-ocfs2_error fs/ocfs2/dir.c
--- a/fs/ocfs2/dir.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/dir.c
@@ -480,8 +480,7 @@ static int ocfs2_check_dir_trailer(struc
trailer = ocfs2_trailer_from_bh(bh, dir->i_sb);
if (!OCFS2_IS_VALID_DIR_TRAILER(trailer)) {
- rc = -EINVAL;
- ocfs2_error(dir->i_sb,
+ rc = ocfs2_error(dir->i_sb,
"Invalid dirblock #%llu: "
"signature = %.*s\n",
(unsigned long long)bh->b_blocknr, 7,
@@ -489,8 +488,7 @@ static int ocfs2_check_dir_trailer(struc
goto out;
}
if (le64_to_cpu(trailer->db_blkno) != bh->b_blocknr) {
- rc = -EINVAL;
- ocfs2_error(dir->i_sb,
+ rc = ocfs2_error(dir->i_sb,
"Directory block #%llu has an invalid "
"db_blkno of %llu",
(unsigned long long)bh->b_blocknr,
@@ -499,8 +497,7 @@ static int ocfs2_check_dir_trailer(struc
}
if (le64_to_cpu(trailer->db_parent_dinode) !
OCFS2_I(dir)->ip_blkno) {
- rc = -EINVAL;
- ocfs2_error(dir->i_sb,
+ rc = ocfs2_error(dir->i_sb,
"Directory block #%llu on dinode "
"#%llu has an invalid parent_dinode "
"of %llu",
@@ -604,14 +601,13 @@ static int ocfs2_validate_dx_root(struct
}
if (!OCFS2_IS_VALID_DX_ROOT(dx_root)) {
- ocfs2_error(sb,
+ ret = ocfs2_error(sb,
"Dir Index Root # %llu has bad signature %.*s",
(unsigned long long)le64_to_cpu(dx_root->dr_blkno),
7, dx_root->dr_signature);
- return -EINVAL;
}
- return 0;
+ return ret;
}
static int ocfs2_read_dx_root(struct inode *dir, struct ocfs2_dinode *di,
@@ -648,12 +644,11 @@ static int ocfs2_validate_dx_leaf(struct
}
if (!OCFS2_IS_VALID_DX_LEAF(dx_leaf)) {
- ocfs2_error(sb, "Dir Index Leaf has bad signature %.*s",
+ ret = ocfs2_error(sb, "Dir Index Leaf has bad signature %.*s",
7, dx_leaf->dl_signature);
- return -EROFS;
}
- return 0;
+ return ret;
}
static int ocfs2_read_dx_leaf(struct inode *dir, u64 blkno,
@@ -812,11 +807,10 @@ static int ocfs2_dx_dir_lookup_rec(struc
el = &eb->h_list;
if (el->l_tree_depth) {
- ocfs2_error(inode->i_sb,
+ ret = ocfs2_error(inode->i_sb,
"Inode %lu has non zero tree depth in "
"btree tree block %llu\n", inode->i_ino,
(unsigned long long)eb_bh->b_blocknr);
- ret = -EROFS;
goto out;
}
}
@@ -832,11 +826,10 @@ static int ocfs2_dx_dir_lookup_rec(struc
}
if (!found) {
- ocfs2_error(inode->i_sb, "Inode %lu has bad extent "
+ ret = ocfs2_error(inode->i_sb, "Inode %lu has bad extent "
"record (%u, %u, 0) in btree", inode->i_ino,
le32_to_cpu(rec->e_cpos),
ocfs2_rec_clusters(el, rec));
- ret = -EROFS;
goto out;
}
diff -puN fs/ocfs2/inode.c~acknowledge-return-value-of-ocfs2_error
fs/ocfs2/inode.c
--- a/fs/ocfs2/inode.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/inode.c
@@ -1352,21 +1352,21 @@ int ocfs2_validate_inode_block(struct su
rc = -EINVAL;
if (!OCFS2_IS_VALID_DINODE(di)) {
- ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n",
+ rc = ocfs2_error(sb, "Invalid dinode #%llu: signature = %.*s\n",
(unsigned long long)bh->b_blocknr, 7,
di->i_signature);
goto bail;
}
if (le64_to_cpu(di->i_blkno) != bh->b_blocknr) {
- ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n",
+ rc = ocfs2_error(sb, "Invalid dinode #%llu: i_blkno is %llu\n",
(unsigned long long)bh->b_blocknr,
(unsigned long long)le64_to_cpu(di->i_blkno));
goto bail;
}
if (!(di->i_flags & cpu_to_le32(OCFS2_VALID_FL))) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Invalid dinode #%llu: OCFS2_VALID_FL not set\n",
(unsigned long long)bh->b_blocknr);
goto bail;
@@ -1374,7 +1374,7 @@ int ocfs2_validate_inode_block(struct su
if (le32_to_cpu(di->i_fs_generation) ! OCFS2_SB(sb)->fs_generation)
{
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Invalid dinode #%llu: fs_generation is %u\n",
(unsigned long long)bh->b_blocknr,
le32_to_cpu(di->i_fs_generation));
diff -puN fs/ocfs2/move_extents.c~acknowledge-return-value-of-ocfs2_error
fs/ocfs2/move_extents.c
--- a/fs/ocfs2/move_extents.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/move_extents.c
@@ -99,11 +99,10 @@ static int __ocfs2_move_extent(handle_t
index = ocfs2_search_extent_list(el, cpos);
if (index == -1) {
- ocfs2_error(inode->i_sb,
+ ret = ocfs2_error(inode->i_sb,
"Inode %llu has an extent at cpos %u which can no "
"longer be found.\n",
(unsigned long long)ino, cpos);
- ret = -EROFS;
goto out;
}
diff -puN fs/ocfs2/refcounttree.c~acknowledge-return-value-of-ocfs2_error
fs/ocfs2/refcounttree.c
--- a/fs/ocfs2/refcounttree.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/refcounttree.c
@@ -102,32 +102,32 @@ static int ocfs2_validate_refcount_block
if (!OCFS2_IS_VALID_REFCOUNT_BLOCK(rb)) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Refcount block #%llu has bad signature %.*s",
(unsigned long long)bh->b_blocknr, 7,
rb->rf_signature);
- return -EINVAL;
+ goto out;
}
if (le64_to_cpu(rb->rf_blkno) != bh->b_blocknr) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Refcount block #%llu has an invalid rf_blkno "
"of %llu",
(unsigned long long)bh->b_blocknr,
(unsigned long long)le64_to_cpu(rb->rf_blkno));
- return -EINVAL;
+ goto out;
}
if (le32_to_cpu(rb->rf_fs_generation) != OCFS2_SB(sb)->fs_generation) {
- ocfs2_error(sb,
+ rc = ocfs2_error(sb,
"Refcount block #%llu has an invalid "
"rf_fs_generation of #%u",
(unsigned long long)bh->b_blocknr,
le32_to_cpu(rb->rf_fs_generation));
- return -EINVAL;
+ goto out;
}
-
- return 0;
+out:
+ return rc;
}
static int ocfs2_read_refcount_block(struct ocfs2_caching_info *ci,
@@ -1102,12 +1102,11 @@ static int ocfs2_get_refcount_rec(struct
el = &eb->h_list;
if (el->l_tree_depth) {
- ocfs2_error(sb,
- "refcount tree %llu has non zero tree "
- "depth in leaf btree tree block %llu\n",
- (unsigned long long)ocfs2_metadata_cache_owner(ci),
- (unsigned long long)eb_bh->b_blocknr);
- ret = -EROFS;
+ ret = ocfs2_error(sb,
+ "refcount tree %llu has non zero tree "
+ "depth in leaf btree tree block %llu\n",
+ (unsigned long long)ocfs2_metadata_cache_owner(ci),
+ (unsigned long long)eb_bh->b_blocknr);
goto out;
}
}
@@ -2361,10 +2360,9 @@ static int ocfs2_mark_extent_refcounted(
cpos, len, phys);
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
- ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
+ ret = ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
"tree, but the feature bit is not set in the "
"super block.", inode->i_ino);
- ret = -EROFS;
goto out;
}
@@ -2547,10 +2545,9 @@ int ocfs2_prepare_refcount_change_for_de
u64 start_cpos = ocfs2_blocks_to_clusters(inode->i_sb, phys_blkno);
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
- ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
+ ret = ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
"tree, but the feature bit is not set in the "
"super block.", inode->i_ino);
- ret = -EROFS;
goto out;
}
@@ -2674,11 +2671,10 @@ static int ocfs2_refcount_cal_cow_cluste
el = &eb->h_list;
if (el->l_tree_depth) {
- ocfs2_error(inode->i_sb,
+ ret = ocfs2_error(inode->i_sb,
"Inode %lu has non zero tree depth in "
"leaf block %llu\n", inode->i_ino,
(unsigned long long)eb_bh->b_blocknr);
- ret = -EROFS;
goto out;
}
}
@@ -3108,11 +3104,10 @@ static int ocfs2_clear_ext_refcount(hand
index = ocfs2_search_extent_list(el, cpos);
if (index == -1) {
- ocfs2_error(sb,
+ ret = ocfs2_error(sb,
"Inode %llu has an extent at cpos %u which can no "
"longer be found.\n",
(unsigned long long)ino, cpos);
- ret = -EROFS;
goto out;
}
@@ -3378,10 +3373,9 @@ static int ocfs2_replace_cow(struct ocfs
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb))) {
- ocfs2_error(inode->i_sb, "Inode %lu want to use refcount "
+ return ocfs2_error(inode->i_sb, "Inode %lu want to use refcount
"
"tree, but the feature bit is not set in the "
"super block.", inode->i_ino);
- return -EROFS;
}
ocfs2_init_dealloc_ctxt(&context->dealloc);
diff -puN fs/ocfs2/suballoc.c~acknowledge-return-value-of-ocfs2_error
fs/ocfs2/suballoc.c
--- a/fs/ocfs2/suballoc.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/suballoc.c
@@ -171,7 +171,7 @@ static u32 ocfs2_bits_per_group(struct o
if (resize) \
mlog(ML_ERROR, fmt "\n", ##__VA_ARGS__); \
else \
- ocfs2_error(sb, fmt, ##__VA_ARGS__); \
+ return ocfs2_error(sb, fmt, ##__VA_ARGS__); \
} while (0)
static int ocfs2_validate_gd_self(struct super_block *sb,
@@ -184,7 +184,6 @@ static int ocfs2_validate_gd_self(struct
do_error("Group descriptor #%llu has bad signature %.*s",
(unsigned long long)bh->b_blocknr, 7,
gd->bg_signature);
- return -EINVAL;
}
if (le64_to_cpu(gd->bg_blkno) != bh->b_blocknr) {
@@ -192,7 +191,6 @@ static int ocfs2_validate_gd_self(struct
"of %llu",
(unsigned long long)bh->b_blocknr,
(unsigned long long)le64_to_cpu(gd->bg_blkno));
- return -EINVAL;
}
if (le32_to_cpu(gd->bg_generation) != OCFS2_SB(sb)->fs_generation) {
@@ -200,7 +198,6 @@ static int ocfs2_validate_gd_self(struct
"fs_generation of #%u",
(unsigned long long)bh->b_blocknr,
le32_to_cpu(gd->bg_generation));
- return -EINVAL;
}
if (le16_to_cpu(gd->bg_free_bits_count) > le16_to_cpu(gd->bg_bits)) {
@@ -209,7 +206,6 @@ static int ocfs2_validate_gd_self(struct
(unsigned long long)bh->b_blocknr,
le16_to_cpu(gd->bg_bits),
le16_to_cpu(gd->bg_free_bits_count));
- return -EINVAL;
}
if (le16_to_cpu(gd->bg_bits) > (8 * le16_to_cpu(gd->bg_size))) {
@@ -218,7 +214,6 @@ static int ocfs2_validate_gd_self(struct
(unsigned long long)bh->b_blocknr,
le16_to_cpu(gd->bg_bits),
8 * le16_to_cpu(gd->bg_size));
- return -EINVAL;
}
return 0;
@@ -238,7 +233,6 @@ static int ocfs2_validate_gd_parent(stru
(unsigned long long)bh->b_blocknr,
(unsigned long long)le64_to_cpu(gd->bg_parent_dinode),
(unsigned long long)le64_to_cpu(di->i_blkno));
- return -EINVAL;
}
max_bits = le16_to_cpu(di->id2.i_chain.cl_cpg) *
le16_to_cpu(di->id2.i_chain.cl_bpc);
@@ -246,7 +240,6 @@ static int ocfs2_validate_gd_parent(stru
do_error("Group descriptor #%llu has bit count of %u",
(unsigned long long)bh->b_blocknr,
le16_to_cpu(gd->bg_bits));
- return -EINVAL;
}
/* In resize, we may meet the case bg_chain == cl_next_free_rec. */
@@ -257,7 +250,6 @@ static int ocfs2_validate_gd_parent(stru
do_error("Group descriptor #%llu has bad chain %u",
(unsigned long long)bh->b_blocknr,
le16_to_cpu(gd->bg_chain));
- return -EINVAL;
}
return 0;
@@ -384,11 +376,10 @@ static int ocfs2_block_group_fill(handle
struct super_block * sb = alloc_inode->i_sb;
if (((unsigned long long) bg_bh->b_blocknr) != group_blkno) {
- ocfs2_error(alloc_inode->i_sb, "group block (%llu) != "
+ status = ocfs2_error(alloc_inode->i_sb, "group block (%llu) != "
"b_blocknr (%llu)",
(unsigned long long)group_blkno,
(unsigned long long) bg_bh->b_blocknr);
- status = -EIO;
goto bail;
}
@@ -834,9 +825,8 @@ static int ocfs2_reserve_suballoc_bits(s
BUG_ON(!OCFS2_IS_VALID_DINODE(fe));
if (!(fe->i_flags & cpu_to_le32(OCFS2_CHAIN_FL))) {
- ocfs2_error(alloc_inode->i_sb, "Invalid chain allocator %llu",
+ status = ocfs2_error(alloc_inode->i_sb, "Invalid chain allocator
%llu",
(unsigned long long)le64_to_cpu(fe->i_blkno));
- status = -EIO;
goto bail;
}
@@ -1370,12 +1360,11 @@ int ocfs2_block_group_set_bits(handle_t
le16_add_cpu(&bg->bg_free_bits_count, -num_bits);
if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {
- ocfs2_error(alloc_inode->i_sb, "Group descriptor # %llu has bit"
+ return ocfs2_error(alloc_inode->i_sb, "Group descriptor # %llu has
bit"
" count %u but claims %u are freed. num_bits %d",
(unsigned long long)le64_to_cpu(bg->bg_blkno),
le16_to_cpu(bg->bg_bits),
le16_to_cpu(bg->bg_free_bits_count), num_bits);
- return -EROFS;
}
while(num_bits--)
ocfs2_set_bit(bit_off++, bitmap);
@@ -1905,13 +1894,12 @@ static int ocfs2_claim_suballoc_bits(str
if (le32_to_cpu(fe->id1.bitmap1.i_used) >
le32_to_cpu(fe->id1.bitmap1.i_total)) {
- ocfs2_error(ac->ac_inode->i_sb,
+ status = ocfs2_error(ac->ac_inode->i_sb,
"Chain allocator dinode %llu has %u used "
"bits but only %u total.",
(unsigned long long)le64_to_cpu(fe->i_blkno),
le32_to_cpu(fe->id1.bitmap1.i_used),
le32_to_cpu(fe->id1.bitmap1.i_total));
- status = -EIO;
goto bail;
}
@@ -2429,12 +2417,11 @@ static int ocfs2_block_group_clear_bits(
}
le16_add_cpu(&bg->bg_free_bits_count, num_bits);
if (le16_to_cpu(bg->bg_free_bits_count) > le16_to_cpu(bg->bg_bits)) {
- ocfs2_error(alloc_inode->i_sb, "Group descriptor # %llu has bit"
+ return ocfs2_error(alloc_inode->i_sb, "Group descriptor # %llu has
bit"
" count %u but claims %u are freed. num_bits %d",
(unsigned long long)le64_to_cpu(bg->bg_blkno),
le16_to_cpu(bg->bg_bits),
le16_to_cpu(bg->bg_free_bits_count), num_bits);
- return -EROFS;
}
if (undo_fn)
diff -puN fs/ocfs2/xattr.c~acknowledge-return-value-of-ocfs2_error
fs/ocfs2/xattr.c
--- a/fs/ocfs2/xattr.c~acknowledge-return-value-of-ocfs2_error
+++ a/fs/ocfs2/xattr.c
@@ -499,30 +499,27 @@ static int ocfs2_validate_xattr_block(st
*/
if (!OCFS2_IS_VALID_XATTR_BLOCK(xb)) {
- ocfs2_error(sb,
+ return ocfs2_error(sb,
"Extended attribute block #%llu has bad "
"signature %.*s",
(unsigned long long)bh->b_blocknr, 7,
xb->xb_signature);
- return -EINVAL;
}
if (le64_to_cpu(xb->xb_blkno) != bh->b_blocknr) {
- ocfs2_error(sb,
+ return ocfs2_error(sb,
"Extended attribute block #%llu has an "
"invalid xb_blkno of %llu",
(unsigned long long)bh->b_blocknr,
(unsigned long long)le64_to_cpu(xb->xb_blkno));
- return -EINVAL;
}
if (le32_to_cpu(xb->xb_fs_generation) != OCFS2_SB(sb)->fs_generation) {
- ocfs2_error(sb,
+ return ocfs2_error(sb,
"Extended attribute block #%llu has an invalid "
"xb_fs_generation of #%u",
(unsigned long long)bh->b_blocknr,
le32_to_cpu(xb->xb_fs_generation));
- return -EINVAL;
}
return 0;
@@ -3694,11 +3691,10 @@ static int ocfs2_xattr_get_rec(struct in
el = &eb->h_list;
if (el->l_tree_depth) {
- ocfs2_error(inode->i_sb,
+ ret = ocfs2_error(inode->i_sb,
"Inode %lu has non zero tree depth in "
"xattr tree block %llu\n", inode->i_ino,
(unsigned long long)eb_bh->b_blocknr);
- ret = -EROFS;
goto out;
}
}
@@ -3713,11 +3709,10 @@ static int ocfs2_xattr_get_rec(struct in
}
if (!e_blkno) {
- ocfs2_error(inode->i_sb, "Inode %lu has bad extent "
+ ret = ocfs2_error(inode->i_sb, "Inode %lu has bad extent "
"record (%u, %u, 0) in xattr", inode->i_ino,
le32_to_cpu(rec->e_cpos),
ocfs2_rec_clusters(el, rec));
- ret = -EROFS;
goto out;
}
_