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authorDavid Teigland <teigland@redhat.com>2007-05-18 09:00:32 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 08:22:36 +0100
commitd7db923ea4990edb5583bf54af868ba687a1bc84 (patch)
tree3efa0db00a3a6400f43a65aef2726fa813f9dfa2 /fs/dlm/dlm_internal.h
parent3ae1acf93a21512512f8a78430fcde5992dd208e (diff)
[DLM] dlm_device interface changes [3/6]
Change the user/kernel device interface used by libdlm: - Add ability for userspace to check the version of the interface. libdlm can now adapt to different versions of the kernel interface. - Increase the size of the flags passed in a lock request so all possible flags can be used from userspace. - Add an opaque "xid" value for each lock. This "transaction id" will be used later to associate locks with each other during deadlock detection. - Add a "timeout" value for each lock. This is used along with the DLM_LKF_TIMEOUT flag. Also, remove a fragment of unused code in device_read(). This patch requires updating libdlm which is backward compatible with older kernels. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/dlm/dlm_internal.h')
-rw-r--r--fs/dlm/dlm_internal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 65a5fc076b8..a8d6e993697 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -151,6 +151,7 @@ struct dlm_args {
void *bastaddr;
int mode;
struct dlm_lksb *lksb;
+ unsigned long timeout;
};
@@ -528,6 +529,7 @@ struct dlm_user_args {
void __user *castaddr;
void __user *bastparam;
void __user *bastaddr;
+ uint64_t xid;
};
#define DLM_PROC_FLAGS_CLOSING 1