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| author | David Howells <dhowells@redhat.com> | 2019-05-09 08:21:21 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2019-05-16 16:25:20 +0100 |
| commit | b960a34b73e4c1c972623bc2076e24b97588d09e (patch) | |
| tree | b7fafd6110ffa1aed594d55097755eea65da5d8d /fs | |
| parent | 0ab4c9594812c4bc5606daf0677ae304bf7ec8c8 (diff) | |
| download | linux-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 'fs')
| -rw-r--r-- | fs/afs/rxrpc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c index 4974defb4592..87763379952d 100644 --- a/fs/afs/rxrpc.c +++ b/fs/afs/rxrpc.c @@ -417,6 +417,7 @@ void afs_make_call(struct afs_addr_cursor *ac, struct afs_call *call, gfp_t gfp) afs_wake_up_async_call : afs_wake_up_call_waiter), call->upgrade, + true, call->debug_id); if (IS_ERR(rxcall)) { ret = PTR_ERR(rxcall); |