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authorQu Wenruo <quwenruo@cn.fujitsu.com>2016-12-05 17:07:53 +0800
committerDavid Sterba <dsterba@suse.com>2016-12-14 15:21:26 +0100
commit0d8601ab6c7a73f025eeccf8e8ce3aa1cd2f3aa9 (patch)
tree4cf6a3df124ac7dd4190c18ff75a65ba382ac171 /cmds-check.c
parent71ffdb50eccf409f3f50389ca6f2057db105e0f2 (diff)
btrfs-progs: check: Fix assert when using lowmem on fs with tree reloc tree
When using lowmem mode, btrfs check will report ASSERT for calling btrfs_read_fs_root() on tree reloc tree. Fix it by checking objectid and call btrfs_read_fs_root_no_cache() for tree reloc tree. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'cmds-check.c')
-rw-r--r--cmds-check.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/cmds-check.c b/cmds-check.c
index 34209b0a..2f7b1a8c 100644
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -11387,7 +11387,11 @@ static int check_chunks_and_extents_v2(struct btrfs_root *root)
goto next;
key.offset = (u64)-1;
- cur_root = btrfs_read_fs_root(root->fs_info, &key);
+ if (key.objectid == BTRFS_TREE_RELOC_OBJECTID)
+ cur_root = btrfs_read_fs_root_no_cache(root->fs_info,
+ &key);
+ else
+ cur_root = btrfs_read_fs_root(root->fs_info, &key);
if (IS_ERR(cur_root) || !cur_root) {
error("failed to read tree: %lld", key.objectid);
goto next;
@@ -11396,6 +11400,8 @@ static int check_chunks_and_extents_v2(struct btrfs_root *root)
ret = traverse_tree_block(cur_root, cur_root->node);
err |= ret;
+ if (key.objectid == BTRFS_TREE_RELOC_OBJECTID)
+ btrfs_free_fs_root(cur_root);
next:
ret = btrfs_next_item(root1, &path);
if (ret)