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- Log -----------------------------------------------------------------
commit 025b0b4a525b5f5b72f8a583ff89bedb5ee738a8
Author: Joel Becker <joel.becker@oracle.com>
Date: Wed Mar 19 16:08:49 2008 -0500

libdlm: Don't pass LKF_WAIT to the kernel

libdlm is passing LKF_WAIT to the kernel. In the kernel, the unlock
path strictly audits flags, and errors on this unknown (to the kernel)
flag. The correct answer is to keep the flag in userspace.

Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: David Teigland <teigland@redhat.com>

-----------------------------------------------------------------------

Summary of changes:
dlm/lib/libdlm.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/dlm/lib/libdlm.c b/dlm/lib/libdlm.c
index d182095..4bafbbc 100644
--- a/dlm/lib/libdlm.c
+++ b/dlm/lib/libdlm.c
@@ -754,7 +754,7 @@ static int ls_lock_v5(dlm_lshandle_t ls,

req->cmd = DLM_USER_LOCK;
req->i.lock.mode = mode;
- req->i.lock.flags = flags;
+ req->i.lock.flags = (flags & ~LKF_WAIT);
req->i.lock.lkid = lksb->sb_lkid;
req->i.lock.parent = parent;
req->i.lock.lksb = lksb;
@@ -822,7 +822,7 @@ static int ls_lock_v6(dlm_lshandle_t ls,

req->cmd = DLM_USER_LOCK;
req->i.lock.mode = mode;
- req->i.lock.flags = flags;
+ req->i.lock.flags = (flags & ~LKF_WAIT);
req->i.lock.lkid = lksb->sb_lkid;
req->i.lock.parent = parent;
req->i.lock.lksb = lksb;
@@ -1019,7 +1019,7 @@ static int ls_unlock_v5(struct dlm_ls_info *lsinfo, uint32_t lkid,
set_version_v5(&req);
req.cmd = DLM_USER_UNLOCK;
req.i.lock.lkid = lkid;
- req.i.lock.flags = flags;
+ req.i.lock.flags = (flags & ~LKF_WAIT);
req.i.lock.lksb = lksb;
req.i.lock.castparam = astarg;
/* DLM_USER_UNLOCK will default to existing completion AST */
@@ -1040,7 +1040,7 @@ static int ls_unlock_v6(struct dlm_ls_info *lsinfo, uint32_t lkid,
set_version_v6(&req);
req.cmd = DLM_USER_UNLOCK;
req.i.lock.lkid = lkid;
- req.i.lock.flags = flags;
+ req.i.lock.flags = (flags & ~LKF_WAIT);
req.i.lock.lksb = lksb;
req.i.lock.namelen = 0;
req.i.lock.castparam = astarg;


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