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| author | Elena Reshetova <elena.reshetova@intel.com> | 2017-03-03 10:55:17 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-04-18 14:07:23 +0200 |
| commit | 089e77e10d7e44a007101cf7323dc7bda66172f4 (patch) | |
| tree | 62bdc5bd9de9681adbba7a9f915bae4b39d67547 /fs/btrfs/delayed-inode.h | |
| parent | 6de5f18e7b0da0cdd265eda047a0bc4f48260bcb (diff) | |
| download | linux-089e77e10d7e44a007101cf7323dc7bda66172f4.tar.gz linux-089e77e10d7e44a007101cf7323dc7bda66172f4.tar.bz2 linux-089e77e10d7e44a007101cf7323dc7bda66172f4.zip | |
btrfs: convert btrfs_delayed_item.refs from atomic_t to refcount_t
refcount_t type and corresponding API should be
used instead of atomic_t when the variable is used as
a reference counter. This allows to avoid accidental
refcounter overflows that might lead to use-after-free
situations.
Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
Signed-off-by: Hans Liljestrand <ishkamiel@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Windsor <dwindsor@gmail.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/delayed-inode.h')
| -rw-r--r-- | fs/btrfs/delayed-inode.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h index 2f494fdde0ac..c4189d495934 100644 --- a/fs/btrfs/delayed-inode.h +++ b/fs/btrfs/delayed-inode.h @@ -80,7 +80,7 @@ struct btrfs_delayed_item { struct list_head readdir_list; /* used for readdir items */ u64 bytes_reserved; struct btrfs_delayed_node *delayed_node; - atomic_t refs; + refcount_t refs; int ins_or_del; u32 data_len; char data[0]; |