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rxrpc: Use irq-disabling spinlocks between app and I/O thread

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Where a spinlock is used by both the application thread and the I/O thread,
use irq-disabling locking so that an interrupt taken on the app thread
doesn't also slow down the I/O thread.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
David Howells
2024-12-04 07:47:01 +00:00
committed by Jakub Kicinski
parent 08d55d7cf3
commit a2ea9a9072
14 changed files with 54 additions and 60 deletions
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5
net/rxrpc/input.c
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@@ -424,7 +424,7 @@ static void rxrpc_input_queue_data(struct rxrpc_call *call, struct sk_buff *skb,
struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
bool last = sp->hdr.flags & RXRPC_LAST_PACKET;
__skb_queue_tail(&call->recvmsg_queue, skb);
skb_queue_tail(&call->recvmsg_queue, skb);
rxrpc_input_update_ack_window(call, window, wtop);
trace_rxrpc_receive(call, last ? why + 1 : why, sp->hdr.serial, sp->hdr.seq);
if (last)
@@ -501,7 +501,6 @@ static void rxrpc_input_data_one(struct rxrpc_call *call, struct sk_buff *skb,
rxrpc_get_skb(skb, rxrpc_skb_get_to_recvmsg);
spin_lock(&call->recvmsg_queue.lock);
rxrpc_input_queue_data(call, skb, window, wtop, rxrpc_receive_queue);
*_notify = true;
@@ -523,8 +522,6 @@ static void rxrpc_input_data_one(struct rxrpc_call *call, struct sk_buff *skb,
rxrpc_receive_queue_oos);
}
spin_unlock(&call->recvmsg_queue.lock);
call->ackr_sack_base = sack;
} else {
unsigned int slot;