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| author |   Josef Bacik <josef@toxicpanda.com> | 2020-01-24 09:32:46 -0500 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2020-03-23 17:01:30 +0100 |
| commit | 0b2dee5cff7490b5e874d33537d4cfcf66e5ba0d (patch) | |
| tree | 272c6488dd9f08e86b484e4db1cbad3c9fa089e9 /fs/btrfs/root-tree.c | |
| parent | btrfs: push grab_fs_root into read_fs_root (diff) | |
| download | linux-dev-0b2dee5cff7490b5e874d33537d4cfcf66e5ba0d.tar.xz linux-dev-0b2dee5cff7490b5e874d33537d4cfcf66e5ba0d.zip | |
btrfs: hold a ref for the root in btrfs_find_orphan_roots
We lookup roots for every orphan item we have, we need to hold a ref on
the root while we're doing this work.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/root-tree.c')
| -rw-r--r-- | fs/btrfs/root-tree.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index 1ea4a35a0830..a32632f43987 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -257,6 +257,8 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) root = btrfs_get_fs_root(fs_info, &root_key, false); err = PTR_ERR_OR_ZERO(root); + if (!err && !btrfs_grab_fs_root(root)) + err = -ENOENT; if (err && err != -ENOENT) { break; } else if (err == -ENOENT) { @@ -287,6 +289,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) set_bit(BTRFS_ROOT_DEAD_TREE, &root->state); btrfs_add_dead_root(root); } + btrfs_put_fs_root(root); } btrfs_free_path(path); |