diff options
| author | Mark Fasheh <mark.fasheh@oracle.com> | 2006-04-28 06:07:45 +0400 |
|---|---|---|
| committer | Mark Fasheh <mark.fasheh@oracle.com> | 2006-06-27 01:42:55 +0400 |
| commit | c0a8520c7333dd62624683772f31864c7f9c46d9 (patch) | |
| tree | 104c77f335821202518dcfb22ba76e7736e55187 | |
| parent | aa85235427992b8d3040297d9174d69dd1d8a675 (diff) | |
| download | linux-c0a8520c7333dd62624683772f31864c7f9c46d9.tar.xz | |
ocfs2: do LVB puts in place
Don't wait until the AST will be fired to do the LVB copy into the lock
resource.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| -rw-r--r-- | fs/ocfs2/dlm/dlmast.c | 12 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmconvert.c | 3 |
2 files changed, 10 insertions, 5 deletions
diff --git a/fs/ocfs2/dlm/dlmast.c b/fs/ocfs2/dlm/dlmast.c index 87ee29cad50b..42775e2bbe2c 100644 --- a/fs/ocfs2/dlm/dlmast.c +++ b/fs/ocfs2/dlm/dlmast.c @@ -197,12 +197,14 @@ static void dlm_update_lvb(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, lock->ml.node == dlm->node_num ? "master" : "remote"); memcpy(lksb->lvb, res->lvb, DLM_LVB_LEN); - } else if (lksb->flags & DLM_LKSB_PUT_LVB) { - mlog(0, "setting lvb from lockres for %s node\n", - lock->ml.node == dlm->node_num ? "master" : - "remote"); - memcpy(res->lvb, lksb->lvb, DLM_LVB_LEN); } + /* Do nothing for lvb put requests - they should be done in + * place when the lock is downconverted - otherwise we risk + * racing gets and puts which could result in old lvb data + * being propagated. We leave the put flag set and clear it + * here. In the future we might want to clear it at the time + * the put is actually done. + */ spin_unlock(&res->spinlock); } diff --git a/fs/ocfs2/dlm/dlmconvert.c b/fs/ocfs2/dlm/dlmconvert.c index 70888b31e751..90cbaaff33a7 100644 --- a/fs/ocfs2/dlm/dlmconvert.c +++ b/fs/ocfs2/dlm/dlmconvert.c @@ -214,6 +214,9 @@ grant: if (lock->ml.node == dlm->node_num) mlog(0, "doing in-place convert for nonlocal lock\n"); lock->ml.type = type; + if (lock->lksb->flags & DLM_LKSB_PUT_LVB) + memcpy(res->lvb, lock->lksb->lvb, DLM_LVB_LEN); + status = DLM_NORMAL; *call_ast = 1; goto unlock_exit; |