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-rw-r--r--fs/ksmbd/connection.c1
-rw-r--r--fs/ksmbd/connection.h3
-rw-r--r--fs/ksmbd/smb2misc.c9
-rw-r--r--fs/ksmbd/smb2pdu.c1
4 files changed, 13 insertions, 1 deletions
diff --git a/fs/ksmbd/connection.c b/fs/ksmbd/connection.c
index 83a94d0bb480..d1d0105be5b1 100644
--- a/fs/ksmbd/connection.c
+++ b/fs/ksmbd/connection.c
@@ -62,6 +62,7 @@ struct ksmbd_conn *ksmbd_conn_alloc(void)
atomic_set(&conn->req_running, 0);
atomic_set(&conn->r_count, 0);
conn->total_credits = 1;
+ conn->outstanding_credits = 1;
init_waitqueue_head(&conn->req_running_q);
INIT_LIST_HEAD(&conn->conns_list);
diff --git a/fs/ksmbd/connection.h b/fs/ksmbd/connection.h
index 42ffb6d9c5d8..7e0730a262da 100644
--- a/fs/ksmbd/connection.h
+++ b/fs/ksmbd/connection.h
@@ -61,7 +61,8 @@ struct ksmbd_conn {
atomic_t req_running;
/* References which are made for this Server object*/
atomic_t r_count;
- unsigned short total_credits;
+ unsigned int total_credits;
+ unsigned int outstanding_credits;
spinlock_t credits_lock;
wait_queue_head_t req_running_q;
/* Lock to protect requests list*/
diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c
index fedcb753c7af..4a9460153b59 100644
--- a/fs/ksmbd/smb2misc.c
+++ b/fs/ksmbd/smb2misc.c
@@ -337,7 +337,16 @@ static int smb2_validate_credit_charge(struct ksmbd_conn *conn,
credit_charge, conn->total_credits);
ret = 1;
}
+
+ if ((u64)conn->outstanding_credits + credit_charge > conn->vals->max_credits) {
+ ksmbd_debug(SMB, "Limits exceeding the maximum allowable outstanding requests, given : %u, pending : %u\n",
+ credit_charge, conn->outstanding_credits);
+ ret = 1;
+ } else
+ conn->outstanding_credits += credit_charge;
+
spin_unlock(&conn->credits_lock);
+
return ret;
}
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index 706191f5e475..867ed982f729 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -322,6 +322,7 @@ int smb2_set_rsp_credits(struct ksmbd_work *work)
}
conn->total_credits -= credit_charge;
+ conn->outstanding_credits -= credit_charge;
credits_requested = max_t(unsigned short,
le16_to_cpu(req_hdr->CreditRequest), 1);