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| author | Josef Bacik <josef@toxicpanda.com> | 2020-01-24 09:32:40 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:29 +0100 |
| commit | ab9737bd759741a56641d627e6a2025be18c91f9 (patch) | |
| tree | 1469084cec29da551c9810c8a0d067d8d1d1726b | |
| parent | db2c2ca2db44e4971ec41d3245119f7bc9d25d37 (diff) | |
btrfs: hold a ref on the root in merge_reloc_roots
We look up the corresponding root for the reloc root, we need to hold a
ref while we're messing with it.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/relocation.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index b85850823a1b..679dd3958ff2 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2592,9 +2592,11 @@ again: root = read_fs_root(fs_info, reloc_root->root_key.offset); BUG_ON(IS_ERR(root)); + BUG_ON(!btrfs_grab_fs_root(root)); BUG_ON(root->reloc_root != reloc_root); ret = merge_reloc_root(rc, root); + btrfs_put_fs_root(root); if (ret) { if (list_empty(&reloc_root->root_list)) list_add_tail(&reloc_root->root_list, |