]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
ocfs2: drop acl cache for directories too
authorWengang Wang <wen.gang.wang@oracle.com>
Fri, 24 Sep 2021 22:43:35 +0000 (15:43 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 24 Sep 2021 23:13:34 +0000 (16:13 -0700)
commit9c0f0a03e386f4e1df33db676401547e1b7800c6
tree40c6c6eacbe6f1cee4e22087a62ff25d943d7cdc
parentde6ee659684b1a2b149e0780d3c5e8032f3647d6
ocfs2: drop acl cache for directories too

ocfs2_data_convert_worker() is currently dropping any cached acl info
for FILE before down-converting meta lock.  It should also drop for
DIRECTORY.  Otherwise the second acl lookup returns the cached one (from
VFS layer) which could be already stale.

The problem we are seeing is that the acl changes on one node doesn't
get refreshed on other nodes in the following case:

  Node 1                    Node 2
  --------------            ----------------
  getfacl dir1

                            getfacl dir1    <-- this is OK

  setfacl -m u:user1:rwX dir1
  getfacl dir1   <-- see the change for user1

                            getfacl dir1    <-- can't see change for user1

Link: https://lkml.kernel.org/r/20210903012631.6099-1-wen.gang.wang@oracle.com
Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com>
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/ocfs2/dlmglue.c