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| author |   Josef Bacik <josef@toxicpanda.com> | 2020-01-24 09:32:39 -0500 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2020-03-23 17:01:29 +0100 |
| commit | db2c2ca2db44e4971ec41d3245119f7bc9d25d37 (patch) | |
| tree | 6c22c2bb2f814ae03985b512871ca809b05e4291 | |
| parent | btrfs: hold a ref on the root in build_backref_tree (diff) | |
| download | linux-dev-db2c2ca2db44e4971ec41d3245119f7bc9d25d37.tar.xz linux-dev-db2c2ca2db44e4971ec41d3245119f7bc9d25d37.zip | |
btrfs: hold a ref on the root in prepare_to_merge
We look up the reloc roots corresponding root, we need to hold a ref on
that root.
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 83fd74cade3b..b85850823a1b 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -2521,6 +2521,7 @@ 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); /* @@ -2532,6 +2533,7 @@ again: btrfs_update_reloc_root(trans, root); list_add(&reloc_root->root_list, &reloc_roots); + btrfs_put_fs_root(root); } list_splice(&reloc_roots, &rc->reloc_roots); |