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for-4.15 

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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
This commit is contained in:
Linus Torvalds 2018-01-25 09:03:10 -08:00
parent 5b7d27967d e4fd493c05
commit 525273fb2e
1 changed files with 8 additions and 18 deletions
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26
fs/btrfs/delayed-inode.c
View File

@ -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;
struct btrfs_delayed_item *curr;
int ret = 0;
if (list_empty(del_list))
return 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;
}
/*