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authorDavid Howells <dhowells@redhat.com>2019-05-09 08:21:21 +0100
committerDavid Howells <dhowells@redhat.com>2019-05-16 16:25:20 +0100
commitb960a34b73e4c1c972623bc2076e24b97588d09e (patch)
treeb7fafd6110ffa1aed594d55097755eea65da5d8d /include/net
parent0ab4c9594812c4bc5606daf0677ae304bf7ec8c8 (diff)
downloadlinux-b960a34b73e4c1c972623bc2076e24b97588d09e.tar.bz2
rxrpc: Allow the kernel to mark a call as being non-interruptible
Allow kernel services using AF_RXRPC to indicate that a call should be non-interruptible. This allows kafs to make things like lock-extension and writeback data storage calls non-interruptible. If this is set, signals will be ignored for operations on that call where possible - such as waiting to get a call channel on an rxrpc connection. It doesn't prevent UDP sendmsg from being interrupted, but that will be handled by packet retransmission. rxrpc_kernel_recv_data() isn't affected by this since that never waits, preferring instead to return -EAGAIN and leave the waiting to the caller. Userspace initiated calls can't be set to be uninterruptible at this time. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/af_rxrpc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/af_rxrpc.h b/include/net/af_rxrpc.h
index c04602ca4a55..93358bfc0e1b 100644
--- a/include/net/af_rxrpc.h
+++ b/include/net/af_rxrpc.h
@@ -45,6 +45,7 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *,
gfp_t,
rxrpc_notify_rx_t,
bool,
+ bool,
unsigned int);
int rxrpc_kernel_send_data(struct socket *, struct rxrpc_call *,
struct msghdr *, size_t,