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btrfs: Don't BUG_ON alloc_path errors in replay_one_buffer()

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The two ->process_func call sites in tree-log.c which were ignoring a return
code have also been updated to gracefully exit as well.

Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Mark Fasheh 2011-07-12 10:46:06 -07:00
parent d8926bb3ba
commit 1e5063d093
1 changed files with 9 additions and 3 deletions
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12
fs/btrfs/tree-log.c
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@ -1617,7 +1617,8 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
return 0;
path = btrfs_alloc_path();
BUG_ON(!path);
if (!path)
return -ENOMEM;
nritems = btrfs_header_nritems(eb);
for (i = 0; i < nritems; i++) {
@ -1723,7 +1724,9 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
return -ENOMEM;
if (*level == 1) {
wc->process_func(root, next, wc, ptr_gen);
ret = wc->process_func(root, next, wc, ptr_gen);
if (ret)
return ret;
path->slots[*level]++;
if (wc->free) {
@ -1788,8 +1791,11 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans,
parent = path->nodes[*level + 1];
root_owner = btrfs_header_owner(parent);
wc->process_func(root, path->nodes[*level], wc,
ret = wc->process_func(root, path->nodes[*level], wc,
btrfs_header_generation(path->nodes[*level]));
if (ret)
return ret;
if (wc->free) {
struct extent_buffer *next;