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authorDavid Teigland <teigland@redhat.com>2007-05-18 16:00:32 +0200
committerSteven Whitehouse <swhiteho@redhat.com>2007-07-09 09:22:36 +0200
commitd7db923ea4990edb5583bf54af868ba687a1bc84 (patch)
tree3efa0db00a3a6400f43a65aef2726fa813f9dfa2 /fs/dlm/lock.h
parent[DLM] add lock timeouts and warnings [2/6] (diff)
downloadlinux-d7db923ea4990edb5583bf54af868ba687a1bc84.tar.xz
linux-d7db923ea4990edb5583bf54af868ba687a1bc84.zip
[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/lock.h')
-rw-r--r--fs/dlm/lock.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/dlm/lock.h b/fs/dlm/lock.h
index 6b5b71f0e9dd..99ab4635074e 100644
--- a/fs/dlm/lock.h
+++ b/fs/dlm/lock.h
@@ -38,9 +38,11 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc);
int dlm_user_request(struct dlm_ls *ls, struct dlm_user_args *ua, int mode,
- uint32_t flags, void *name, unsigned int namelen, uint32_t parent_lkid);
+ uint32_t flags, void *name, unsigned int namelen,
+ unsigned long timeout_cs);
int dlm_user_convert(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
- int mode, uint32_t flags, uint32_t lkid, char *lvb_in);
+ int mode, uint32_t flags, uint32_t lkid, char *lvb_in,
+ unsigned long timeout_cs);
int dlm_user_unlock(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,
uint32_t flags, uint32_t lkid, char *lvb_in);
int dlm_user_cancel(struct dlm_ls *ls, struct dlm_user_args *ua_tmp,