* [PATCH 6.1 080/157] smb: server: let smb_direct_flush_send_list() invalidate a remote key first
[not found] <20251027183501.227243846@linuxfoundation.org>
@ 2025-10-27 18:35 ` Greg Kroah-Hartman
0 siblings, 0 replies; only message in thread
From: Greg Kroah-Hartman @ 2025-10-27 18:35 UTC (permalink / raw)
To: stable
Cc: Greg Kroah-Hartman, patches, Namjae Jeon, Steve French,
Tom Talpey, linux-cifs, samba-technical, Stefan Metzmacher,
Steve French, Sasha Levin
6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Metzmacher <metze@samba.org>
[ Upstream commit 1b53426334c3c942db47e0959a2527a4f815af50 ]
If we want to invalidate a remote key we should do that as soon as
possible, so do it in the first send work request.
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/smb/server/transport_rdma.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index af1c41f922bb3..81da8a5c1e0db 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -933,12 +933,15 @@ static int smb_direct_flush_send_list(struct smb_direct_transport *t,
struct smb_direct_sendmsg,
list);
+ if (send_ctx->need_invalidate_rkey) {
+ first->wr.opcode = IB_WR_SEND_WITH_INV;
+ first->wr.ex.invalidate_rkey = send_ctx->remote_key;
+ send_ctx->need_invalidate_rkey = false;
+ send_ctx->remote_key = 0;
+ }
+
last->wr.send_flags = IB_SEND_SIGNALED;
last->wr.wr_cqe = &last->cqe;
- if (is_last && send_ctx->need_invalidate_rkey) {
- last->wr.opcode = IB_WR_SEND_WITH_INV;
- last->wr.ex.invalidate_rkey = send_ctx->remote_key;
- }
ret = smb_direct_post_send(t, &first->wr);
if (!ret) {
--
2.51.0
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