From: Jeff Layton jlayton@kernel.org
[ Upstream commit 64f36da5625f7f9853b86750eaa89d499d16a2e9 ]
A primary reason for skipping ceph_check_caps after putting the references was to avoid the locking in ceph_check_caps during a reconnect. __ceph_put_cap_refs can still call ceph_flush_snaps in that case though, and that takes many of the same inconvenient locks.
Fix the logic in __ceph_put_cap_refs to skip flushing snaps when the skip_checking_caps flag is set.
Fixes: e64f44a88465 ("ceph: skip checking caps when session reconnecting and releasing reqs") Signed-off-by: Jeff Layton jlayton@kernel.org Reviewed-by: Ilya Dryomov idryomov@gmail.com Signed-off-by: Ilya Dryomov idryomov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ceph/caps.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 255a512f1277e..638d18c198ea7 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3093,10 +3093,12 @@ static void __ceph_put_cap_refs(struct ceph_inode_info *ci, int had, dout("put_cap_refs %p had %s%s%s\n", inode, ceph_cap_string(had), last ? " last" : "", put ? " put" : "");
- if (last && !skip_checking_caps) - ceph_check_caps(ci, 0, NULL); - else if (flushsnaps) - ceph_flush_snaps(ci, NULL); + if (!skip_checking_caps) { + if (last) + ceph_check_caps(ci, 0, NULL); + else if (flushsnaps) + ceph_flush_snaps(ci, NULL); + } if (wake) wake_up_all(&ci->i_cap_wq); while (put-- > 0)