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Btrfs: return error to caller if read_one_inode() fails

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When read_one_inode() fails, error code is returned to caller instead
of BUG_ON().

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Tsutomu Itoh 2011-04-28 09:10:23 +00:00 committed by Chris Mason
parent 1cd307990d
commit c00e9493f1
1 changed files with 18 additions and 6 deletions
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24
fs/btrfs/tree-log.c
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@ -677,7 +677,10 @@ static noinline int drop_one_dir_item(struct btrfs_trans_handle *trans,
btrfs_release_path(root, path);
inode = read_one_inode(root, location.objectid);
BUG_ON(!inode);
if (!inode) {
kfree(name);
return -EIO;
}
ret = link_to_fixup_dir(trans, root, path, location.objectid);
BUG_ON(ret);
@ -816,7 +819,10 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
return -ENOENT;
inode = read_one_inode(root, key->objectid);
BUG_ON(!inode);
if (!inode) {
iput(dir);
return -EIO;
}
ref_ptr = btrfs_item_ptr_offset(eb, slot);
ref_end = ref_ptr + btrfs_item_size_nr(eb, slot);
@ -1054,7 +1060,8 @@ static noinline int fixup_inode_link_counts(struct btrfs_trans_handle *trans,
btrfs_release_path(root, path);
inode = read_one_inode(root, key.offset);
BUG_ON(!inode);
if (!inode)
return -EIO;
ret = fixup_inode_link_count(trans, root, inode);
BUG_ON(ret);
@ -1090,7 +1097,8 @@ static noinline int link_to_fixup_dir(struct btrfs_trans_handle *trans,
struct inode *inode;
inode = read_one_inode(root, objectid);
BUG_ON(!inode);
if (!inode)
return -EIO;
key.objectid = BTRFS_TREE_LOG_FIXUP_OBJECTID;
btrfs_set_key_type(&key, BTRFS_ORPHAN_ITEM_KEY);
@ -1177,7 +1185,8 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
int ret;
dir = read_one_inode(root, key->objectid);
BUG_ON(!dir);
if (!dir)
return -EIO;
name_len = btrfs_dir_name_len(eb, di);
name = kmalloc(name_len, GFP_NOFS);
@ -1433,7 +1442,10 @@ again:
btrfs_release_path(root, path);
btrfs_release_path(log, log_path);
inode = read_one_inode(root, location.objectid);
BUG_ON(!inode);
if (!inode) {
kfree(name);
return -EIO;
}
ret = link_to_fixup_dir(trans, root,
path, location.objectid);