aboutsummaryrefslogtreecommitdiff
path: root/fs/btrfs
diff options
context:
space:
mode:
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/extent-tree.c22
-rw-r--r--fs/btrfs/ioctl.c3
-rw-r--r--fs/btrfs/relocation.c81
-rw-r--r--fs/btrfs/send.c4
-rw-r--r--fs/btrfs/super.c5
5 files changed, 73 insertions, 42 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 45d98d01028f..9c01509dd8ab 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -767,20 +767,19 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans,
if (!path)
return -ENOMEM;
- if (metadata) {
- key.objectid = bytenr;
- key.type = BTRFS_METADATA_ITEM_KEY;
- key.offset = offset;
- } else {
- key.objectid = bytenr;
- key.type = BTRFS_EXTENT_ITEM_KEY;
- key.offset = offset;
- }
-
if (!trans) {
path->skip_locking = 1;
path->search_commit_root = 1;
}
+
+search_again:
+ key.objectid = bytenr;
+ key.offset = offset;
+ if (metadata)
+ key.type = BTRFS_METADATA_ITEM_KEY;
+ else
+ key.type = BTRFS_EXTENT_ITEM_KEY;
+
again:
ret = btrfs_search_slot(trans, root->fs_info->extent_root,
&key, path, 0, 0);
@@ -788,7 +787,6 @@ again:
goto out_free;
if (ret > 0 && metadata && key.type == BTRFS_METADATA_ITEM_KEY) {
- metadata = 0;
if (path->slots[0]) {
path->slots[0]--;
btrfs_item_key_to_cpu(path->nodes[0], &key,
@@ -855,7 +853,7 @@ again:
mutex_lock(&head->mutex);
mutex_unlock(&head->mutex);
btrfs_put_delayed_ref(&head->node);
- goto again;
+ goto search_again;
}
if (head->extent_op && head->extent_op->update_flags)
extent_flags |= head->extent_op->flags_to_set;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a111622598b0..21da5762b0b1 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2121,7 +2121,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
err = mutex_lock_killable_nested(&dir->i_mutex, I_MUTEX_PARENT);
if (err == -EINTR)
- goto out;
+ goto out_drop_write;
dentry = lookup_one_len(vol_args->name, parent, namelen);
if (IS_ERR(dentry)) {
err = PTR_ERR(dentry);
@@ -2284,6 +2284,7 @@ out_dput:
dput(dentry);
out_unlock_dir:
mutex_unlock(&dir->i_mutex);
+out_drop_write:
mnt_drop_write_file(file);
out:
kfree(vol_args);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index ce459a7cb16d..429c73c374b8 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -571,7 +571,9 @@ static int is_cowonly_root(u64 root_objectid)
root_objectid == BTRFS_CHUNK_TREE_OBJECTID ||
root_objectid == BTRFS_DEV_TREE_OBJECTID ||
root_objectid == BTRFS_TREE_LOG_OBJECTID ||
- root_objectid == BTRFS_CSUM_TREE_OBJECTID)
+ root_objectid == BTRFS_CSUM_TREE_OBJECTID ||
+ root_objectid == BTRFS_UUID_TREE_OBJECTID ||
+ root_objectid == BTRFS_QUOTA_TREE_OBJECTID)
return 1;
return 0;
}
@@ -1264,10 +1266,10 @@ static int __must_check __add_reloc_root(struct btrfs_root *root)
}
/*
- * helper to update/delete the 'address of tree root -> reloc tree'
+ * helper to delete the 'address of tree root -> reloc tree'
* mapping
*/
-static int __update_reloc_root(struct btrfs_root *root, int del)
+static void __del_reloc_root(struct btrfs_root *root)
{
struct rb_node *rb_node;
struct mapping_node *node = NULL;
@@ -1275,7 +1277,7 @@ static int __update_reloc_root(struct btrfs_root *root, int del)
spin_lock(&rc->reloc_root_tree.lock);
rb_node = tree_search(&rc->reloc_root_tree.rb_root,
- root->commit_root->start);
+ root->node->start);
if (rb_node) {
node = rb_entry(rb_node, struct mapping_node, rb_node);
rb_erase(&node->rb_node, &rc->reloc_root_tree.rb_root);
@@ -1283,23 +1285,45 @@ static int __update_reloc_root(struct btrfs_root *root, int del)
spin_unlock(&rc->reloc_root_tree.lock);
if (!node)
- return 0;
+ return;
BUG_ON((struct btrfs_root *)node->data != root);
- if (!del) {
- spin_lock(&rc->reloc_root_tree.lock);
- node->bytenr = root->node->start;
- rb_node = tree_insert(&rc->reloc_root_tree.rb_root,
- node->bytenr, &node->rb_node);
- spin_unlock(&rc->reloc_root_tree.lock);
- if (rb_node)
- backref_tree_panic(rb_node, -EEXIST, node->bytenr);
- } else {
- spin_lock(&root->fs_info->trans_lock);
- list_del_init(&root->root_list);
- spin_unlock(&root->fs_info->trans_lock);
- kfree(node);
+ spin_lock(&root->fs_info->trans_lock);
+ list_del_init(&root->root_list);
+ spin_unlock(&root->fs_info->trans_lock);
+ kfree(node);
+}
+
+/*
+ * helper to update the 'address of tree root -> reloc tree'
+ * mapping
+ */
+static int __update_reloc_root(struct btrfs_root *root, u64 new_bytenr)
+{
+ struct rb_node *rb_node;
+ struct mapping_node *node = NULL;
+ struct reloc_control *rc = root->fs_info->reloc_ctl;
+
+ spin_lock(&rc->reloc_root_tree.lock);
+ rb_node = tree_search(&rc->reloc_root_tree.rb_root,
+ root->node->start);
+ if (rb_node) {
+ node = rb_entry(rb_node, struct mapping_node, rb_node);
+ rb_erase(&node->rb_node, &rc->reloc_root_tree.rb_root);
}
+ spin_unlock(&rc->reloc_root_tree.lock);
+
+ if (!node)
+ return 0;
+ BUG_ON((struct btrfs_root *)node->data != root);
+
+ spin_lock(&rc->reloc_root_tree.lock);
+ node->bytenr = new_bytenr;
+ rb_node = tree_insert(&rc->reloc_root_tree.rb_root,
+ node->bytenr, &node->rb_node);
+ spin_unlock(&rc->reloc_root_tree.lock);
+ if (rb_node)
+ backref_tree_panic(rb_node, -EEXIST, node->bytenr);
return 0;
}
@@ -1420,7 +1444,6 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
{
struct btrfs_root *reloc_root;
struct btrfs_root_item *root_item;
- int del = 0;
int ret;
if (!root->reloc_root)
@@ -1432,11 +1455,9 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans,
if (root->fs_info->reloc_ctl->merge_reloc_tree &&
btrfs_root_refs(root_item) == 0) {
root->reloc_root = NULL;
- del = 1;
+ __del_reloc_root(reloc_root);
}
- __update_reloc_root(reloc_root, del);
-
if (reloc_root->commit_root != reloc_root->node) {
btrfs_set_root_node(root_item, reloc_root->node);
free_extent_buffer(reloc_root->commit_root);
@@ -2287,7 +2308,7 @@ void free_reloc_roots(struct list_head *list)
while (!list_empty(list)) {
reloc_root = list_entry(list->next, struct btrfs_root,
root_list);
- __update_reloc_root(reloc_root, 1);
+ __del_reloc_root(reloc_root);
free_extent_buffer(reloc_root->node);
free_extent_buffer(reloc_root->commit_root);
kfree(reloc_root);
@@ -2332,7 +2353,7 @@ again:
ret = merge_reloc_root(rc, root);
if (ret) {
- __update_reloc_root(reloc_root, 1);
+ __del_reloc_root(reloc_root);
free_extent_buffer(reloc_root->node);
free_extent_buffer(reloc_root->commit_root);
kfree(reloc_root);
@@ -2388,6 +2409,13 @@ out:
btrfs_std_error(root->fs_info, ret);
if (!list_empty(&reloc_roots))
free_reloc_roots(&reloc_roots);
+
+ /* new reloc root may be added */
+ mutex_lock(&root->fs_info->reloc_mutex);
+ list_splice_init(&rc->reloc_roots, &reloc_roots);
+ mutex_unlock(&root->fs_info->reloc_mutex);
+ if (!list_empty(&reloc_roots))
+ free_reloc_roots(&reloc_roots);
}
BUG_ON(!RB_EMPTY_ROOT(&rc->reloc_root_tree.rb_root));
@@ -4522,6 +4550,11 @@ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans,
BUG_ON(rc->stage == UPDATE_DATA_PTRS &&
root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID);
+ if (root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID) {
+ if (buf == root->node)
+ __update_reloc_root(root, cow->start);
+ }
+
level = btrfs_header_level(buf);
if (btrfs_header_generation(buf) <=
btrfs_root_last_snapshot(&root->root_item))
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 6837fe87f3a6..945d1db98f26 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4723,8 +4723,8 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
}
if (!access_ok(VERIFY_READ, arg->clone_sources,
- sizeof(*arg->clone_sources *
- arg->clone_sources_count))) {
+ sizeof(*arg->clone_sources) *
+ arg->clone_sources_count)) {
ret = -EFAULT;
goto out;
}
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 2d8ac1bf0cf9..d71a11d13dfa 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -432,7 +432,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
} else {
printk(KERN_INFO "btrfs: setting nodatacow\n");
}
- info->compress_type = BTRFS_COMPRESS_NONE;
btrfs_clear_opt(info->mount_opt, COMPRESS);
btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
btrfs_set_opt(info->mount_opt, NODATACOW);
@@ -461,7 +460,6 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
btrfs_set_fs_incompat(info, COMPRESS_LZO);
} else if (strncmp(args[0].from, "no", 2) == 0) {
compress_type = "no";
- info->compress_type = BTRFS_COMPRESS_NONE;
btrfs_clear_opt(info->mount_opt, COMPRESS);
btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
compress_force = false;
@@ -474,9 +472,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
btrfs_set_opt(info->mount_opt, FORCE_COMPRESS);
pr_info("btrfs: force %s compression\n",
compress_type);
- } else
+ } else if (btrfs_test_opt(root, COMPRESS)) {
pr_info("btrfs: use %s compression\n",
compress_type);
+ }
break;
case Opt_ssd:
printk(KERN_INFO "btrfs: use ssd allocation scheme\n");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 16:36:27 +0000