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Commit 0e4de584 authored by Chris Mason's avatar Chris Mason
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Btrfs: Add check for null block group to find_search_start 

Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 7073c8e8
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fs/btrfs/extent-tree.c
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...@@ -204,6 +204,7 @@ new_group: ...@@ -204,6 +204,7 @@ new_group:
wrapped: wrapped:
cache = btrfs_lookup_block_group(root->fs_info, last); cache = btrfs_lookup_block_group(root->fs_info, last);
if (!cache) { if (!cache) {
no_cache:
if (!wrapped) { if (!wrapped) {
wrapped = 1; wrapped = 1;
last = search_start; last = search_start;
...@@ -219,6 +220,8 @@ wrapped: ...@@ -219,6 +220,8 @@ wrapped:
} }
if (!full_scan) if (!full_scan)
cache = btrfs_find_block_group(root, cache, last, data, 0); cache = btrfs_find_block_group(root, cache, last, data, 0);
if (!cache)
goto no_cache;
*cache_ret = cache; *cache_ret = cache;
cache_miss = 0; cache_miss = 0;
goto again; goto again;
......
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