diff options
| -rw-r--r-- | fs/btrfs/extent_io.c | 7 | ||||
| -rw-r--r-- | fs/btrfs/extent_io.h | 1 |
2 files changed, 5 insertions, 3 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 1d8244d39b66..92a3ad4656a6 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -4617,6 +4617,7 @@ again: } /* add one reference for the tree */ check_buffer_tree_ref(eb); + set_bit(EXTENT_BUFFER_IN_TREE, &eb->bflags); /* * there is a race where release page may have @@ -4660,9 +4661,7 @@ static int release_extent_buffer(struct extent_buffer *eb) { WARN_ON(atomic_read(&eb->refs) == 0); if (atomic_dec_and_test(&eb->refs)) { - if (test_bit(EXTENT_BUFFER_DUMMY, &eb->bflags)) { - spin_unlock(&eb->refs_lock); - } else { + if (test_and_clear_bit(EXTENT_BUFFER_IN_TREE, &eb->bflags)) { struct extent_io_tree *tree = eb->tree; spin_unlock(&eb->refs_lock); @@ -4671,6 +4670,8 @@ static int release_extent_buffer(struct extent_buffer *eb) radix_tree_delete(&tree->buffer, eb->start >> PAGE_CACHE_SHIFT); spin_unlock(&tree->buffer_lock); + } else { + spin_unlock(&eb->refs_lock); } /* Should be safe to release our pages at this point */ diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 19620c58f096..92e4347315e6 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -43,6 +43,7 @@ #define EXTENT_BUFFER_WRITEBACK 7 #define EXTENT_BUFFER_IOERR 8 #define EXTENT_BUFFER_DUMMY 9 +#define EXTENT_BUFFER_IN_TREE 10 /* these are flags for extent_clear_unlock_delalloc */ #define PAGE_UNLOCK (1 << 0) |