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-rw-r--r--fs/btrfs/extent_io.c11
-rw-r--r--fs/btrfs/inode.c8
-rw-r--r--fs/btrfs/qgroup.c3
-rw-r--r--fs/btrfs/relocation.c19
-rw-r--r--fs/btrfs/tree-log.c67
-rw-r--r--fs/btrfs/zoned.c2
6 files changed, 69 insertions, 41 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 835b0deef9bb..f23d75986947 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4331,15 +4331,18 @@ static int try_release_subpage_extent_buffer(struct folio *folio)
unsigned long end = index + (PAGE_SIZE >> fs_info->nodesize_bits) - 1;
int ret;
- xa_lock_irq(&fs_info->buffer_tree);
+ rcu_read_lock();
xa_for_each_range(&fs_info->buffer_tree, index, eb, start, end) {
/*
* The same as try_release_extent_buffer(), to ensure the eb
* won't disappear out from under us.
*/
spin_lock(&eb->refs_lock);
+ rcu_read_unlock();
+
if (refcount_read(&eb->refs) != 1 || extent_buffer_under_io(eb)) {
spin_unlock(&eb->refs_lock);
+ rcu_read_lock();
continue;
}
@@ -4358,11 +4361,10 @@ static int try_release_subpage_extent_buffer(struct folio *folio)
* check the folio private at the end. And
* release_extent_buffer() will release the refs_lock.
*/
- xa_unlock_irq(&fs_info->buffer_tree);
release_extent_buffer(eb);
- xa_lock_irq(&fs_info->buffer_tree);
+ rcu_read_lock();
}
- xa_unlock_irq(&fs_info->buffer_tree);
+ rcu_read_unlock();
/*
* Finally to check if we have cleared folio private, as if we have
@@ -4375,7 +4377,6 @@ static int try_release_subpage_extent_buffer(struct folio *folio)
ret = 0;
spin_unlock(&folio->mapping->i_private_lock);
return ret;
-
}
int try_release_extent_buffer(struct folio *folio)
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b77dd22b8cdb..d740910e071a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -401,10 +401,12 @@ static inline void btrfs_cleanup_ordered_extents(struct btrfs_inode *inode,
while (index <= end_index) {
folio = filemap_get_folio(inode->vfs_inode.i_mapping, index);
- index++;
- if (IS_ERR(folio))
+ if (IS_ERR(folio)) {
+ index++;
continue;
+ }
+ index = folio_end(folio) >> PAGE_SHIFT;
/*
* Here we just clear all Ordered bits for every page in the
* range, then btrfs_mark_ordered_io_finished() will handle
@@ -2013,7 +2015,7 @@ static int nocow_one_range(struct btrfs_inode *inode, struct folio *locked_folio
* cleaered by the caller.
*/
if (ret < 0)
- btrfs_cleanup_ordered_extents(inode, file_pos, end);
+ btrfs_cleanup_ordered_extents(inode, file_pos, len);
return ret;
}
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 1a5972178b3a..ccaa9a3cf1ce 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1453,7 +1453,6 @@ static int __qgroup_excl_accounting(struct btrfs_fs_info *fs_info, u64 ref_root,
struct btrfs_qgroup *src, int sign)
{
struct btrfs_qgroup *qgroup;
- struct btrfs_qgroup *cur;
LIST_HEAD(qgroup_list);
u64 num_bytes = src->excl;
int ret = 0;
@@ -1463,7 +1462,7 @@ static int __qgroup_excl_accounting(struct btrfs_fs_info *fs_info, u64 ref_root,
goto out;
qgroup_iterator_add(&qgroup_list, qgroup);
- list_for_each_entry(cur, &qgroup_list, iterator) {
+ list_for_each_entry(qgroup, &qgroup_list, iterator) {
struct btrfs_qgroup_list *glist;
qgroup->rfer += sign * num_bytes;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index e58151933844..7256f6748c8f 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -602,6 +602,25 @@ static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans,
if (btrfs_root_id(root) == objectid) {
u64 commit_root_gen;
+ /*
+ * Relocation will wait for cleaner thread, and any half-dropped
+ * subvolume will be fully cleaned up at mount time.
+ * So here we shouldn't hit a subvolume with non-zero drop_progress.
+ *
+ * If this isn't the case, error out since it can make us attempt to
+ * drop references for extents that were already dropped before.
+ */
+ if (unlikely(btrfs_disk_key_objectid(&root->root_item.drop_progress))) {
+ struct btrfs_key cpu_key;
+
+ btrfs_disk_key_to_cpu(&cpu_key, &root->root_item.drop_progress);
+ btrfs_err(fs_info,
+ "cannot relocate partially dropped subvolume %llu, drop progress key (%llu %u %llu)",
+ objectid, cpu_key.objectid, cpu_key.type, cpu_key.offset);
+ ret = -EUCLEAN;
+ goto fail;
+ }
+
/* called by btrfs_init_reloc_root */
ret = btrfs_copy_root(trans, root, root->commit_root, &eb,
BTRFS_TREE_RELOC_OBJECTID);
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 9f05d454b9df..69e11557fd13 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -321,8 +321,7 @@ struct walk_control {
/*
* Ignore any items from the inode currently being processed. Needs
- * to be set every time we find a BTRFS_INODE_ITEM_KEY and we are in
- * the LOG_WALK_REPLAY_INODES stage.
+ * to be set every time we find a BTRFS_INODE_ITEM_KEY.
*/
bool ignore_cur_inode;
@@ -2465,23 +2464,30 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
nritems = btrfs_header_nritems(eb);
for (i = 0; i < nritems; i++) {
- btrfs_item_key_to_cpu(eb, &key, i);
+ struct btrfs_inode_item *inode_item;
- /* inode keys are done during the first stage */
- if (key.type == BTRFS_INODE_ITEM_KEY &&
- wc->stage == LOG_WALK_REPLAY_INODES) {
- struct btrfs_inode_item *inode_item;
- u32 mode;
+ btrfs_item_key_to_cpu(eb, &key, i);
- inode_item = btrfs_item_ptr(eb, i,
- struct btrfs_inode_item);
+ if (key.type == BTRFS_INODE_ITEM_KEY) {
+ inode_item = btrfs_item_ptr(eb, i, struct btrfs_inode_item);
/*
- * If we have a tmpfile (O_TMPFILE) that got fsync'ed
- * and never got linked before the fsync, skip it, as
- * replaying it is pointless since it would be deleted
- * later. We skip logging tmpfiles, but it's always
- * possible we are replaying a log created with a kernel
- * that used to log tmpfiles.
+ * An inode with no links is either:
+ *
+ * 1) A tmpfile (O_TMPFILE) that got fsync'ed and never
+ * got linked before the fsync, skip it, as replaying
+ * it is pointless since it would be deleted later.
+ * We skip logging tmpfiles, but it's always possible
+ * we are replaying a log created with a kernel that
+ * used to log tmpfiles;
+ *
+ * 2) A non-tmpfile which got its last link deleted
+ * while holding an open fd on it and later got
+ * fsynced through that fd. We always log the
+ * parent inodes when inode->last_unlink_trans is
+ * set to the current transaction, so ignore all the
+ * inode items for this inode. We will delete the
+ * inode when processing the parent directory with
+ * replay_dir_deletes().
*/
if (btrfs_inode_nlink(eb, inode_item) == 0) {
wc->ignore_cur_inode = true;
@@ -2489,8 +2495,14 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
} else {
wc->ignore_cur_inode = false;
}
- ret = replay_xattr_deletes(wc->trans, root, log,
- path, key.objectid);
+ }
+
+ /* Inode keys are done during the first stage. */
+ if (key.type == BTRFS_INODE_ITEM_KEY &&
+ wc->stage == LOG_WALK_REPLAY_INODES) {
+ u32 mode;
+
+ ret = replay_xattr_deletes(wc->trans, root, log, path, key.objectid);
if (ret)
break;
mode = btrfs_inode_mode(eb, inode_item);
@@ -2593,14 +2605,14 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
/*
* Correctly adjust the reserved bytes occupied by a log tree extent buffer
*/
-static void unaccount_log_buffer(struct btrfs_fs_info *fs_info, u64 start)
+static int unaccount_log_buffer(struct btrfs_fs_info *fs_info, u64 start)
{
struct btrfs_block_group *cache;
cache = btrfs_lookup_block_group(fs_info, start);
if (!cache) {
btrfs_err(fs_info, "unable to find block group for %llu", start);
- return;
+ return -ENOENT;
}
spin_lock(&cache->space_info->lock);
@@ -2611,27 +2623,22 @@ static void unaccount_log_buffer(struct btrfs_fs_info *fs_info, u64 start)
spin_unlock(&cache->space_info->lock);
btrfs_put_block_group(cache);
+
+ return 0;
}
static int clean_log_buffer(struct btrfs_trans_handle *trans,
struct extent_buffer *eb)
{
- int ret;
-
btrfs_tree_lock(eb);
btrfs_clear_buffer_dirty(trans, eb);
wait_on_extent_buffer_writeback(eb);
btrfs_tree_unlock(eb);
- if (trans) {
- ret = btrfs_pin_reserved_extent(trans, eb);
- if (ret)
- return ret;
- } else {
- unaccount_log_buffer(eb->fs_info, eb->start);
- }
+ if (trans)
+ return btrfs_pin_reserved_extent(trans, eb);
- return 0;
+ return unaccount_log_buffer(eb->fs_info, eb->start);
}
static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 245e813ecd78..db11b5b5f0e6 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -2650,7 +2650,7 @@ int btrfs_zone_finish_one_bg(struct btrfs_fs_info *fs_info)
spin_lock(&block_group->lock);
if (block_group->reserved || block_group->alloc_offset == 0 ||
- (block_group->flags & BTRFS_BLOCK_GROUP_SYSTEM) ||
+ !(block_group->flags & BTRFS_BLOCK_GROUP_DATA) ||
test_bit(BLOCK_GROUP_FLAG_ZONED_DATA_RELOC, &block_group->runtime_flags)) {
spin_unlock(&block_group->lock);
continue;
generated by cgit (git 2.34.1) at 2025-08-12 17:46:41 +0000