acct_on() fix for deadlock caught be overlayfs folks,
autofs RCU use-after-free SNAFU (->d_manage() can be called
lockless, so we need to RCU-delay freeing the objects it
looks at) and (hopefully) the end of "do we need freeing this
dentry RCU-delayed" whack-a-mole.
The following changes since commit 79a3aaa7b82e3106be97842dedfd8429248896e6:
Linux 5.1-rc3 (2019-03-31 14:39:29 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git stable-fodder
for you to fetch changes up to ce285c267a003acbf607f3540ff71287f82e5282:
autofs: fix use-after-free in lockless ->d_manage() (2019-04-09 19:18:19
-0400)
----------------------------------------------------------------
Al Viro (3):
acct_on(): don't mess with freeze protection
dcache: sort the freeing-without-RCU-delay mess for good.
autofs: fix use-after-free in lockless ->d_manage()
Documentation/filesystems/porting | 5 +++++
fs/autofs/autofs_i.h | 1 +
fs/autofs/inode.c | 2 +-
fs/dcache.c | 24 +++++++++++++-----------
fs/internal.h | 2 --
fs/nsfs.c | 3 +--
include/linux/dcache.h | 2 +-
include/linux/mount.h | 2 ++
kernel/acct.c | 4 ++--
9 files changed, 26 insertions(+), 19 deletions(-)
