This is a note to let you know that I've just added the patch titled
staging: lustre: mdc: Make IT_OPEN take lookup bits lock
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
staging-lustre-mdc-make-it_open-take-lookup-bits-lock.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 26d2bf1e71525f4c0f644820c30d1344633159e2 Mon Sep 17 00:00:00 2001
From: Patrick Farrell <paf@xxxxxxxx>
Date: Sat, 28 Jan 2017 19:05:14 -0500
Subject: staging: lustre: mdc: Make IT_OPEN take lookup bits lock
From: Patrick Farrell <paf@xxxxxxxx>
commit 26d2bf1e71525f4c0f644820c30d1344633159e2 upstream.
An earlier commit accidentally changed handling of IT_OPEN,
making it take the MDS_INODELOCK_UPDATE bits lock instead of
MDS_INODELOCK_LOOKUP. This does not cause any known bugs.
Signed-off-by: Patrick Farrell <paf@xxxxxxxx>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-8842
Reviewed-on: https://review.whamcloud.com/23797
Fixes: 70a251f68dea ("staging: lustre: obd: decruft md_enqueue() and md_intent_lock()"
Reviewed-by: John L. Hammond <john.hammond@xxxxxxxxx>
Reviewed-by: Lai Siyao <lai.siyao@xxxxxxxxx>
Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx>
Signed-off-by: James Simmons <jsimmons@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/lustre/lustre/mdc/mdc_locks.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -721,7 +721,7 @@ int mdc_enqueue(struct obd_export *exp,
LASSERT(!policy);
saved_flags |= LDLM_FL_HAS_INTENT;
- if (it->it_op & (IT_OPEN | IT_UNLINK | IT_GETATTR | IT_READDIR))
+ if (it->it_op & (IT_UNLINK | IT_GETATTR | IT_READDIR))
policy = &update_policy;
else if (it->it_op & IT_LAYOUT)
policy = &layout_policy;
Patches currently in stable-queue which might be from paf@xxxxxxxx are
queue-4.9/staging-lustre-mdc-make-it_open-take-lookup-bits-lock.patch