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authorDavid Teigland <teigland@redhat.com>2007-05-18 09:59:31 -0400
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 03:22:33 -0400
commit3ae1acf93a21512512f8a78430fcde5992dd208e (patch)
tree878ed3c619530c6acf862ecf663063f66fc47a06 /fs/dlm/member.c
parent85e86edf951a8a39954c0ba1edbe4a58827dcd5c (diff)
[DLM] add lock timeouts and warnings [2/6]
New features: lock timeouts and time warnings. If the DLM_LKF_TIMEOUT flag is set, then the request/conversion will be canceled after waiting the specified number of centiseconds (specified per lock). This feature is only available for locks requested through libdlm (can be enabled for kernel dlm users if there's a use for it.) If the new DLM_LSFL_TIMEWARN flag is set when creating the lockspace, then a warning message will be sent to userspace (using genetlink) after a request/conversion has been waiting for a given number of centiseconds (configurable per node). The time warnings will be used in the future to do deadlock detection in userspace. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/dlm/member.c')
-rw-r--r--fs/dlm/member.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index 85e2897bd740..f08faec3d854 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -1,7 +1,7 @@
1/****************************************************************************** 1/******************************************************************************
2******************************************************************************* 2*******************************************************************************
3** 3**
4** Copyright (C) 2005 Red Hat, Inc. All rights reserved. 4** Copyright (C) 2005-2007 Red Hat, Inc. All rights reserved.
5** 5**
6** This copyrighted material is made available to anyone wishing to use, 6** This copyrighted material is made available to anyone wishing to use,
7** modify, copy, or redistribute it subject to the terms and conditions 7** modify, copy, or redistribute it subject to the terms and conditions
@@ -284,6 +284,9 @@ int dlm_ls_stop(struct dlm_ls *ls)
284 dlm_recoverd_suspend(ls); 284 dlm_recoverd_suspend(ls);
285 ls->ls_recover_status = 0; 285 ls->ls_recover_status = 0;
286 dlm_recoverd_resume(ls); 286 dlm_recoverd_resume(ls);
287
288 if (!ls->ls_recover_begin)
289 ls->ls_recover_begin = jiffies;
287 return 0; 290 return 0;
288} 291}
289 292