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authorMark Brown <broonie@kernel.org>2023-08-18 22:46:19 +0100
committerMark Brown <broonie@kernel.org>2023-08-18 22:46:19 +0100
commitab4724302feedcd33633fd409667a8ee0016f13d (patch)
tree245c7082ca66780da02df0b7cedc91a5090b795f /fs/btrfs/disk-io.c
parent46f53bde6e69edf8a2e0943babb3f160b30ee436 (diff)
parentef75e767167a8f30c7690bc4689dba76329ee06e (diff)
Add cs42l43 PC focused SoundWire CODEC
Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>: This patch chain adds support for the Cirrus Logic cs42l43 PC focused SoundWire CODEC.
Diffstat (limited to 'fs/btrfs/disk-io.c')
-rw-r--r--fs/btrfs/disk-io.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9b9914e5f03d..a9a2c5446c18 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1103,7 +1103,8 @@ static int btrfs_init_fs_root(struct btrfs_root *root, dev_t anon_dev)
btrfs_drew_lock_init(&root->snapshot_lock);
if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID &&
- !btrfs_is_data_reloc_root(root)) {
+ !btrfs_is_data_reloc_root(root) &&
+ is_fstree(root->root_key.objectid)) {
set_bit(BTRFS_ROOT_SHAREABLE, &root->state);
btrfs_check_and_init_root_item(&root->root_item);
}
@@ -1300,6 +1301,16 @@ static struct btrfs_root *btrfs_get_root_ref(struct btrfs_fs_info *fs_info,
root = btrfs_get_global_root(fs_info, objectid);
if (root)
return root;
+
+ /*
+ * If we're called for non-subvolume trees, and above function didn't
+ * find one, do not try to read it from disk.
+ *
+ * This is namely for free-space-tree and quota tree, which can change
+ * at runtime and should only be grabbed from fs_info.
+ */
+ if (!is_fstree(objectid) && objectid != BTRFS_DATA_RELOC_TREE_OBJECTID)
+ return ERR_PTR(-ENOENT);
again:
root = btrfs_lookup_fs_root(fs_info, objectid);
if (root) {