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authorNamjae Jeon <linkinjeon@kernel.org>2021-12-29 23:10:03 +0900
committerSteve French <stfrench@microsoft.com>2022-01-10 12:44:19 -0600
commit914d7e5709ac59ded70bea7956d408fe2acd7c3c (patch)
treede81a2369f17f36589ebfbca0a1af473d768e362 /fs/ksmbd/smb2misc.c
parent004443b3f6d722b455cf963ed7c3edd7f4772405 (diff)
ksmbd: move credit charge deduction under processing request
Moves the credit charge deduction from total_credits under the processing a request. When repeating smb2 lock request and other command request, there will be a problem that ->total_credits does not decrease. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/smb2misc.c')
-rw-r--r--fs/ksmbd/smb2misc.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c
index 6892d1822269..fedcb753c7af 100644
--- a/fs/ksmbd/smb2misc.c
+++ b/fs/ksmbd/smb2misc.c
@@ -289,7 +289,7 @@ static int smb2_validate_credit_charge(struct ksmbd_conn *conn,
unsigned int req_len = 0, expect_resp_len = 0, calc_credit_num, max_len;
unsigned short credit_charge = le16_to_cpu(hdr->CreditCharge);
void *__hdr = hdr;
- int ret;
+ int ret = 0;
switch (hdr->Command) {
case SMB2_QUERY_INFO:
@@ -332,10 +332,7 @@ static int smb2_validate_credit_charge(struct ksmbd_conn *conn,
}
spin_lock(&conn->credits_lock);
- if (credit_charge <= conn->total_credits) {
- conn->total_credits -= credit_charge;
- ret = 0;
- } else {
+ if (credit_charge > conn->total_credits) {
ksmbd_debug(SMB, "Insufficient credits granted, given: %u, granted: %u\n",
credit_charge, conn->total_credits);
ret = 1;