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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:44 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:44 -0500
commit3a649b884637c4fdff50a6beebc3dc0e6082e048 (patch)
tree042455741f079fdbd4d33cd7da61c1c9e68db477 /fs/lockd/clntproc.c
parentd72b7a6b26b9009b7a05117fe2e04b3a73ae4a5c (diff)
downloadop-kernel-dev-3a649b884637c4fdff50a6beebc3dc0e6082e048.zip
op-kernel-dev-3a649b884637c4fdff50a6beebc3dc0e6082e048.tar.gz
NLM: Simplify client locks
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/lockd/clntproc.c')
-rw-r--r--fs/lockd/clntproc.c39
1 files changed, 16 insertions, 23 deletions
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index c25044f..8af0171 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -136,15 +136,14 @@ static void nlmclnt_setlockargs(struct nlm_rqst *req, struct file_lock *fl)
(unsigned int)fl->fl_u.nfs_fl.owner->pid,
system_utsname.nodename);
lock->svid = fl->fl_u.nfs_fl.owner->pid;
- locks_copy_lock(&lock->fl, fl);
+ lock->fl.fl_start = fl->fl_start;
+ lock->fl.fl_end = fl->fl_end;
+ lock->fl.fl_type = fl->fl_type;
}
static void nlmclnt_release_lockargs(struct nlm_rqst *req)
{
- struct file_lock *fl = &req->a_args.lock.fl;
-
- if (fl->fl_ops && fl->fl_ops->fl_release_private)
- fl->fl_ops->fl_release_private(fl);
+ BUG_ON(req->a_args.lock.fl.fl_ops != NULL);
}
/*
@@ -455,7 +454,6 @@ static void nlmclnt_locks_release_private(struct file_lock *fl)
{
list_del(&fl->fl_u.nfs_fl.list);
nlm_put_lockowner(fl->fl_u.nfs_fl.owner);
- fl->fl_ops = NULL;
}
static struct file_lock_operations nlmclnt_lock_ops = {
@@ -515,41 +513,36 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
{
struct nlm_host *host = req->a_host;
struct nlm_res *resp = &req->a_res;
- long timeout;
- int status;
+ struct nlm_wait *block = NULL;
+ int status = -ENOLCK;
if (!host->h_monitored && nsm_monitor(host) < 0) {
printk(KERN_NOTICE "lockd: failed to monitor %s\n",
host->h_name);
- status = -ENOLCK;
goto out;
}
- if (req->a_args.block) {
- status = nlmclnt_prepare_block(req, host, fl);
- if (status < 0)
- goto out;
- }
+ block = nlmclnt_prepare_block(host, fl);
for(;;) {
status = nlmclnt_call(req, NLMPROC_LOCK);
if (status < 0)
goto out_unblock;
- if (resp->status != NLM_LCK_BLOCKED)
+ if (!req->a_args.block)
break;
- /* Wait on an NLM blocking lock */
- timeout = nlmclnt_block(req, NLMCLNT_POLL_TIMEOUT);
/* Did a reclaimer thread notify us of a server reboot? */
if (resp->status == NLM_LCK_DENIED_GRACE_PERIOD)
continue;
if (resp->status != NLM_LCK_BLOCKED)
break;
- if (timeout >= 0)
- continue;
- /* We were interrupted. Send a CANCEL request to the server
+ /* Wait on an NLM blocking lock */
+ status = nlmclnt_block(block, req, NLMCLNT_POLL_TIMEOUT);
+ /* if we were interrupted. Send a CANCEL request to the server
* and exit
*/
- status = (int)timeout;
- goto out_unblock;
+ if (status < 0)
+ goto out_unblock;
+ if (resp->status != NLM_LCK_BLOCKED)
+ break;
}
if (resp->status == NLM_LCK_GRANTED) {
@@ -560,7 +553,7 @@ nlmclnt_lock(struct nlm_rqst *req, struct file_lock *fl)
}
status = nlm_stat_to_errno(resp->status);
out_unblock:
- nlmclnt_finish_block(req);
+ nlmclnt_finish_block(block);
/* Cancel the blocked request if it is still pending */
if (resp->status == NLM_LCK_BLOCKED)
nlmclnt_cancel(host, req->a_args.block, fl);
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