lockd: Remove BKL from the client
This patch removes all calls to lock_kernel() from the client. This patch
should be applied after the "fs/lock.c prepare for BKL removal" patch submitted
by Arnd Bergmann on September 18.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c
index 7932c39..47ea1e1 100644
--- a/fs/lockd/clntproc.c
+++ b/fs/lockd/clntproc.c
@@ -166,7 +166,6 @@
/* Set up the argument struct */
nlmclnt_setlockargs(call, fl);
- lock_kernel();
if (IS_SETLK(cmd) || IS_SETLKW(cmd)) {
if (fl->fl_type != F_UNLCK) {
call->a_args.block = IS_SETLKW(cmd) ? 1 : 0;
@@ -177,10 +176,8 @@
status = nlmclnt_test(call, fl);
else
status = -EINVAL;
-
fl->fl_ops->fl_release_private(fl);
fl->fl_ops = NULL;
- unlock_kernel();
dprintk("lockd: clnt proc returns %d\n", status);
return status;
@@ -226,9 +223,7 @@
static void nlmclnt_rpc_release(void *data)
{
- lock_kernel();
nlm_release_call(data);
- unlock_kernel();
}
static int nlm_wait_on_grace(wait_queue_head_t *queue)
@@ -448,14 +443,18 @@
static void nlmclnt_locks_copy_lock(struct file_lock *new, struct file_lock *fl)
{
+ spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);
new->fl_u.nfs_fl.state = fl->fl_u.nfs_fl.state;
new->fl_u.nfs_fl.owner = nlm_get_lockowner(fl->fl_u.nfs_fl.owner);
list_add_tail(&new->fl_u.nfs_fl.list, &fl->fl_u.nfs_fl.owner->host->h_granted);
+ spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);
}
static void nlmclnt_locks_release_private(struct file_lock *fl)
{
+ spin_lock(&fl->fl_u.nfs_fl.owner->host->h_lock);
list_del(&fl->fl_u.nfs_fl.list);
+ spin_unlock(&fl->fl_u.nfs_fl.owner->host->h_lock);
nlm_put_lockowner(fl->fl_u.nfs_fl.owner);
}
@@ -721,9 +720,7 @@
die:
return;
retry_rebind:
- lock_kernel();
nlm_rebind_host(req->a_host);
- unlock_kernel();
retry_unlock:
rpc_restart_call(task);
}
@@ -801,9 +798,7 @@
/* Don't ever retry more than 3 times */
if (req->a_retries++ >= NLMCLNT_MAX_RETRIES)
goto die;
- lock_kernel();
nlm_rebind_host(req->a_host);
- unlock_kernel();
rpc_restart_call(task);
rpc_delay(task, 30 * HZ);
}