[PATCH AUTOSEL 6.6 71/73] ksmbd: set v2 lease version on lease upgrade

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From: Namjae Jeon <linkinjeon@xxxxxxxxxx>

[ Upstream commit bb05367a66a9990d2c561282f5620bb1dbe40c28 ]

If file opened with v2 lease is upgraded with v1 lease, smb server
should response v2 lease create context to client.
This patch fix smb2.lease.v2_epoch2 test failure.

This test case assumes the following scenario:
 1. smb2 create with v2 lease(R, LEASE1 key)
 2. smb server return smb2 create response with v2 lease context(R,
LEASE1 key, epoch + 1)
 3. smb2 create with v1 lease(RH, LEASE1 key)
 4. smb server return smb2 create response with v2 lease context(RH,
LEASE1 key, epoch + 2)

i.e. If same client(same lease key) try to open a file that is being
opened with v2 lease with v1 lease, smb server should return v2 lease.

Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Acked-by: Tom Talpey <tom@xxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/smb/server/oplock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index 562b180459a1..9a19d8b06c8c 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -1036,6 +1036,7 @@ static void copy_lease(struct oplock_info *op1, struct oplock_info *op2)
 	lease2->duration = lease1->duration;
 	lease2->flags = lease1->flags;
 	lease2->epoch = lease1->epoch++;
+	lease2->version = lease1->version;
 }
 
 static int add_lease_global_list(struct oplock_info *opinfo)
-- 
2.43.0





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