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authorDavid Howells <dhowells@redhat.com>2022-10-12 17:42:06 +0300
committerDavid Howells <dhowells@redhat.com>2022-12-01 16:36:41 +0300
commit29fb4ec385f18db98d9188c2173a0b07d2de6917 (patch)
tree5421332d90da716ec1aaf36574cfe68af7f994e2 /net/rxrpc/peer_event.c
parentcf37b5987508878647161ec3cdba0bb00a1b607a (diff)
downloadlinux-29fb4ec385f18db98d9188c2173a0b07d2de6917.tar.xz
rxrpc: Remove RCU from peer->error_targets list
Remove the RCU requirements from the peer's list of error targets so that the error distributor can call sleeping functions. Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: linux-afs@lists.infradead.org
Diffstat (limited to 'net/rxrpc/peer_event.c')
-rw-r--r--net/rxrpc/peer_event.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index 94f63fb1bd67..97d017ca3dc4 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -207,11 +207,24 @@ static void rxrpc_distribute_error(struct rxrpc_peer *peer, int error,
enum rxrpc_call_completion compl)
{
struct rxrpc_call *call;
+ HLIST_HEAD(error_targets);
+
+ spin_lock(&peer->lock);
+ hlist_move_list(&peer->error_targets, &error_targets);
+
+ while (!hlist_empty(&error_targets)) {
+ call = hlist_entry(error_targets.first,
+ struct rxrpc_call, error_link);
+ hlist_del_init(&call->error_link);
+ spin_unlock(&peer->lock);
- hlist_for_each_entry_rcu(call, &peer->error_targets, error_link) {
rxrpc_see_call(call, rxrpc_call_see_distribute_error);
rxrpc_set_call_completion(call, compl, 0, -error);
+
+ spin_lock(&peer->lock);
}
+
+ spin_unlock(&peer->lock);
}
/*