diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-25 09:03:10 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-25 09:03:10 -0800 |
| commit | 525273fb2e7c84c98e3dffc5b446141bda99ff01 (patch) | |
| tree | 7221dcf4a4409dcf42e42eaecff52d927ca591f6 | |
| parent | 5b7d27967dabfb17c21b0d98b29153b9e3ee71e5 (diff) | |
| parent | e4fd493c0541d36953f7b9d3bfced67a1321792f (diff) | |
Merge tag 'for-4.15-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"It's been reported recently that readdir can list stale entries under
some conditions. Fix it."
* tag 'for-4.15-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix stale entries in readdir
| -rw-r--r-- | fs/btrfs/delayed-inode.c | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 056276101c63..a6226cd6063c 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1633,28 +1633,18 @@ void btrfs_readdir_put_delayed_items(struct inode *inode, int btrfs_should_delete_dir_index(struct list_head *del_list, u64 index) { - struct btrfs_delayed_item *curr, *next; - int ret; - - if (list_empty(del_list)) - return 0; + struct btrfs_delayed_item *curr; + int ret = 0; - list_for_each_entry_safe(curr, next, del_list, readdir_list) { + list_for_each_entry(curr, del_list, readdir_list) { if (curr->key.offset > index) break; - - list_del(&curr->readdir_list); - ret = (curr->key.offset == index); - - if (refcount_dec_and_test(&curr->refs)) - kfree(curr); - - if (ret) - return 1; - else - continue; + if (curr->key.offset == index) { + ret = 1; + break; + } } - return 0; + return ret; } /* |