From: Ben Kaduk <kaduk@mit.edu>
Date: Sun, 19 Dec 2010 05:06:13 +0000 (-0500)
Subject: FBSD: StopListener glocking fixup
X-Git-Tag: upstream/1.8.0_pre1^2~4352
X-Git-Url: https://git.michaelhowe.org/gitweb/?a=commitdiff_plain;h=28032bc1c1aaa4c25e94025a8fa9e2b4e8131ce3;p=packages%2Fo%2Fopenafs.git

FBSD: StopListener glocking fixup

afs_osi_Sleep requires the glock (so that it can sleep on it); we
dropped the glock earlier in osi_StopListener because soshutdown and
soclose can sleep, but we must (unconditionally!) acquire it for our
loop waiting on rxk_ListenerPid.

Change-Id: I38c3ab6689a6af7f1693bd3c8348068ee280e530
Reviewed-on: http://gerrit.openafs.org/3549
Reviewed-by: Derrick Brashear <shadow@dementia.org>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
---

diff --git a/src/rx/FBSD/rx_knet.c b/src/rx/FBSD/rx_knet.c
index 5cb695682..c6d2d842d 100644
--- a/src/rx/FBSD/rx_knet.c
+++ b/src/rx/FBSD/rx_knet.c
@@ -108,11 +108,14 @@ osi_StopListener(void)
     bzero(&dvec, sizeof(dvec));
     dvec.iov_base = &c;
     dvec.iov_len = 1;
+    /* afs_osi_Sleep requires the GLOCK */
+    AFS_GLOCK();
     while(rxk_ListenerPid) {
 	afs_warn("waiting for rxk_ListenerPid to die\n");
 	osi_NetSend(rx_socket, &taddr, &dvec, 1, 1, 0);
 	afs_osi_Sleep(&rxk_ListenerPid);
     }
+    AFS_GUNLOCK();
     /* in theory, we are now the only people doing anything with rx_socket */
     soclose(rx_socket);