The commit is pushed to "branch-rh9-5.14.0-427.44.1.vz9.80.x-ovz" and will
appear at g...@bitbucket.org:openvz/vzkernel.git
after rh9-5.14.0-427.44.1.vz9.80.24
------>
commit ba5a58add9dd31b6f7557fd3b0f56ec2eef35313
Author: Liu Kui <kui....@virtuozzo.com>
Date: Sat Apr 5 10:22:02 2025 +0800
fs/fuse kio: dispatch msgs in correct order from the krpc_send kthread
The msgs kept in the llist are in reverse order that must be reversed
before traversing. Misordered msgs could hit performance severely.
Fixes: VSTOR-103577
https://virtuozzo.atlassian.net/browse/VSTOR-103577
Signed-off-by: Liu Kui <kui....@virtuozzo.com>
Acked-by: Alexey Kuznetsov <kuz...@virtuozzo.com>
Feature: fuse: kRPC - single RPC for kernel and userspace
---
fs/fuse/kio/pcs/pcs_krpc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/fuse/kio/pcs/pcs_krpc.c b/fs/fuse/kio/pcs/pcs_krpc.c
index eac6ac9c34bd..78180bdb4993 100644
--- a/fs/fuse/kio/pcs/pcs_krpc.c
+++ b/fs/fuse/kio/pcs/pcs_krpc.c
@@ -653,6 +653,7 @@ static int krpc_threadfn(void *data)
__set_current_state(TASK_RUNNING);
+ ll = llist_reverse_order(ll);
while (ll) {
struct llist_node *next = ll->next;
struct krpc_req *kreq = container_of(ll, struct
krpc_req, llist_link);
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