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authorDavid Teigland <teigland@redhat.com>2007-05-18 08:59:31 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 08:22:33 +0100
commit3ae1acf93a21512512f8a78430fcde5992dd208e (patch)
tree878ed3c619530c6acf862ecf663063f66fc47a06 /fs/dlm/config.h
parent85e86edf951a8a39954c0ba1edbe4a58827dcd5c (diff)
downloadop-kernel-dev-3ae1acf93a21512512f8a78430fcde5992dd208e.zip
op-kernel-dev-3ae1acf93a21512512f8a78430fcde5992dd208e.tar.gz
[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/config.h')
-rw-r--r--fs/dlm/config.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index 967cc3d..a3170fe 100644
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -27,6 +27,7 @@ struct dlm_config_info {
int ci_scan_secs;
int ci_log_debug;
int ci_protocol;
+ int ci_timewarn_cs;
};
extern struct dlm_config_info dlm_config;
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