lockd: clean up nlmsvc_lock
Slightly more consistent dprintk error reporting, consolidate some up()'s.
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index a525a14..42dd105 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -300,6 +300,7 @@
struct file_lock *conflock;
struct nlm_block *block;
int error;
+ u32 ret;
dprintk("lockd: nlmsvc_lock(%s/%ld, ty=%d, pi=%d, %Ld-%Ld, bl=%d)\n",
file->f_file->f_dentry->d_inode->i_sb->s_id,
@@ -329,24 +330,28 @@
dprintk("lockd: posix_lock_file returned %d\n", -error);
switch(-error) {
case 0:
- return nlm_granted;
+ ret = nlm_granted;
+ goto out;
case EDEADLK:
- return nlm_deadlock;
+ ret = nlm_deadlock;
+ goto out;
case EAGAIN:
- return nlm_lck_denied;
+ ret = nlm_lck_denied;
+ goto out;
default: /* includes ENOLCK */
- return nlm_lck_denied_nolocks;
+ ret = nlm_lck_denied_nolocks;
+ goto out;
}
}
if (!wait) {
- up(&file->f_sema);
- return nlm_lck_denied;
+ ret = nlm_lck_denied;
+ goto out_unlock;
}
if (posix_locks_deadlock(&lock->fl, conflock)) {
- up(&file->f_sema);
- return nlm_deadlock;
+ ret = nlm_deadlock;
+ goto out_unlock;
}
/* If we don't have a block, create and initialize it. Then
@@ -371,8 +376,12 @@
posix_block_lock(conflock, &block->b_call.a_args.lock.fl);
}
+ ret = nlm_lck_blocked;
+out_unlock:
up(&file->f_sema);
- return nlm_lck_blocked;
+out:
+ dprintk("lockd: nlmsvc_lock returned %u\n", ret);
+ return ret;
}
/*
@@ -535,8 +544,7 @@
dprintk("lockd: lock still blocked\n");
nlmsvc_insert_block(block, NLM_NEVER);
posix_block_lock(conflock, &lock->fl);
- up(&file->f_sema);
- return;
+ goto out_unlock;
}
/* Alright, no conflicting lock. Now lock it for real. If the
@@ -547,8 +555,7 @@
printk(KERN_WARNING "lockd: unexpected error %d in %s!\n",
-error, __FUNCTION__);
nlmsvc_insert_block(block, 10 * HZ);
- up(&file->f_sema);
- return;
+ goto out_unlock;
}
callback:
@@ -565,6 +572,7 @@
if (nlmsvc_async_call(&block->b_call, NLMPROC_GRANTED_MSG,
&nlmsvc_grant_ops) < 0)
nlm_release_host(block->b_call.a_host);
+out_unlock:
up(&file->f_sema);
}