From 5bc594982f49220d33e927e3c9e028bf87b4745c Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Tue, 21 Feb 2012 19:56:08 +0300 Subject: [PATCH] CIFS: Make wait_for_free_request killable to let us kill the proccess if it hangs waiting for a credit when the session is down and echo is disabled. Reviewed-by: Jeff Layton Signed-off-by: Pavel Shilovsky Signed-off-by: Steve French --- fs/cifs/transport.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index e5202ddef2fb..58b31da17fc5 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -257,6 +257,8 @@ smb_send(struct TCP_Server_Info *server, struct smb_hdr *smb_buffer, static int wait_for_free_request(struct TCP_Server_Info *server, const int long_op) { + int rc; + spin_lock(&server->req_lock); if (long_op == CIFS_ASYNC_OP) { @@ -271,8 +273,11 @@ wait_for_free_request(struct TCP_Server_Info *server, const int long_op) if (server->credits <= 0) { spin_unlock(&server->req_lock); cifs_num_waiters_inc(server); - wait_event(server->request_q, has_credits(server)); + rc = wait_event_killable(server->request_q, + has_credits(server)); cifs_num_waiters_dec(server); + if (rc) + return rc; spin_lock(&server->req_lock); } else { if (server->tcpStatus == CifsExiting) { -- 2.39.5