This is a note to let you know that I've just added the patch titled
ksmbd: avoid to send duplicate lease break notifications
to the 6.6-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:
ksmbd-avoid-to-send-duplicate-lease-break-notifications.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 97c2ec64667bacc49881d2b2dd9afd4d1c3fbaeb Mon Sep 17 00:00:00 2001
From: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Date: Wed, 1 May 2024 21:44:02 +0900
Subject: ksmbd: avoid to send duplicate lease break notifications
From: Namjae Jeon <linkinjeon@xxxxxxxxxx>
commit 97c2ec64667bacc49881d2b2dd9afd4d1c3fbaeb upstream.
This patch fixes generic/011 when enable smb2 leases.
if ksmbd sends multiple notifications for a file, cifs increments
the reference count of the file but it does not decrement the count by
the failure of queue_work.
So even if the file is closed, cifs does not send a SMB2_CLOSE request.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/smb/server/oplock.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -612,13 +612,23 @@ static int oplock_break_pending(struct o
if (opinfo->op_state == OPLOCK_CLOSING)
return -ENOENT;
- else if (!opinfo->is_lease && opinfo->level <= req_op_level)
- return 1;
+ else if (opinfo->level <= req_op_level) {
+ if (opinfo->is_lease &&
+ opinfo->o_lease->state !=
+ (SMB2_LEASE_HANDLE_CACHING_LE |
+ SMB2_LEASE_READ_CACHING_LE))
+ return 1;
+ }
}
- if (!opinfo->is_lease && opinfo->level <= req_op_level) {
- wake_up_oplock_break(opinfo);
- return 1;
+ if (opinfo->level <= req_op_level) {
+ if (opinfo->is_lease &&
+ opinfo->o_lease->state !=
+ (SMB2_LEASE_HANDLE_CACHING_LE |
+ SMB2_LEASE_READ_CACHING_LE)) {
+ wake_up_oplock_break(opinfo);
+ return 1;
+ }
}
return 0;
}
@@ -886,7 +896,6 @@ static int oplock_break(struct oplock_in
struct lease *lease = brk_opinfo->o_lease;
atomic_inc(&brk_opinfo->breaking_cnt);
-
err = oplock_break_pending(brk_opinfo, req_op_level);
if (err)
return err < 0 ? err : 0;
Patches currently in stable-queue which might be from linkinjeon@xxxxxxxxxx are
queue-6.6/ksmbd-avoid-to-send-duplicate-lease-break-notifications.patch
queue-6.6/ksmbd-off-ipv6only-for-both-ipv4-ipv6-binding.patch
queue-6.6/ksmbd-do-not-grant-v2-lease-if-parent-lease-key-and-epoch-are-not-set.patch
