Author: rmacklem
Date: Sat May 26 23:02:15 2018
New Revision: 334252
URL: https://svnweb.freebsd.org/changeset/base/334252
Log:
Fix the sleep event for layout recall.
The sleep for I/O completion during an NFSv4.1 pNFS layout recall used
the wrong event value and could result in the "[nfscl]" thread hung
for the mount.
This patch fixes the event to be the correct.
This bug will only affect NFSv4.1 pnfs mounts and only when the server
does a layout recall callback, so it won't affect many. Without the patch,
a mount without the "pnfs" option will avoid the problem.
Found during testing of the pNFS server.
MFC after: 1 week
Modified:
head/sys/fs/nfsclient/nfs_clstate.c
Modified: head/sys/fs/nfsclient/nfs_clstate.c
==============================================================================
--- head/sys/fs/nfsclient/nfs_clstate.c Sat May 26 21:58:43 2018
(r334251)
+++ head/sys/fs/nfsclient/nfs_clstate.c Sat May 26 23:02:15 2018
(r334252)
@@ -2721,7 +2721,7 @@ tryagain2:
NFSV4LOCK_LOCK) != 0) {
lyp->nfsly_lock.nfslock_lock |=
NFSV4LOCK_WANTED;
- (void)nfsmsleep(&lyp->nfsly_lock,
+ nfsmsleep(&lyp->nfsly_lock.nfslock_lock,
NFSCLSTATEMUTEXPTR, PZERO, "nfslyp",
NULL);
goto tryagain2;
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