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From: Jeff Layton <jlayton@kernel.org>
Date: Thu, 25 Jan 2024 05:43:03 -0500
Subject: [PATCH v2 22/41] filelock: clean up locks_delete_block internals
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To: Christian Brauner <brauner@kernel.org>, 
 Alexander Viro <viro@zeniv.linux.org.uk>, 
 Eric Van Hensbergen <ericvh@kernel.org>, 
 Latchesar Ionkov <lucho@ionkov.net>, 
 Dominique Martinet <asmadeus@codewreck.org>, 
 Christian Schoenebeck <linux_oss@crudebyte.com>, 
 David Howells <dhowells@redhat.com>, Marc Dionne <marc.dionne@auristor.com>, 
 Xiubo Li <xiubli@redhat.com>, Ilya Dryomov <idryomov@gmail.com>, 
 Alexander Aring <aahringo@redhat.com>, David Teigland <teigland@redhat.com>, 
 Miklos Szeredi <miklos@szeredi.hu>, 
 Andreas Gruenbacher <agruenba@redhat.com>, 
 Trond Myklebust <trond.myklebust@hammerspace.com>, 
 Anna Schumaker <anna@kernel.org>, Chuck Lever <chuck.lever@oracle.com>, 
 Neil Brown <neilb@suse.de>, Olga Kornievskaia <kolga@netapp.com>, 
 Dai Ngo <Dai.Ngo@oracle.com>, Tom Talpey <tom@talpey.com>, 
 Jan Kara <jack@suse.cz>, Mark Fasheh <mark@fasheh.com>, 
 Joel Becker <jlbec@evilplan.org>, Joseph Qi <joseph.qi@linux.alibaba.com>, 
 Steve French <sfrench@samba.org>, Paulo Alcantara <pc@manguebit.com>, 
 Shyam Prasad N <sprasad@microsoft.com>, Namjae Jeon <linkinjeon@kernel.org>, 
 Sergey Senozhatsky <senozhatsky@chromium.org>, 
 Steven Rostedt <rostedt@goodmis.org>, 
 Masami Hiramatsu <mhiramat@kernel.org>, 
 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>, 
 Ronnie Sahlberg <ronniesahlberg@gmail.com>
Cc: linux-kernel@vger.kernel.org, v9fs@lists.linux.dev, 
 linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org, 
 gfs2@lists.linux.dev, linux-fsdevel@vger.kernel.org, 
 linux-nfs@vger.kernel.org, ocfs2-devel@lists.linux.dev, 
 linux-cifs@vger.kernel.org, linux-trace-kernel@vger.kernel.org, 
 Jeff Layton <jlayton@kernel.org>

Rework the internals of locks_delete_block to use struct file_lock_core
(mostly just for clarity's sake). The prototype is not changed.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/locks.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/fs/locks.c b/fs/locks.c
index 8e320c95c416..739af36d98df 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -697,9 +697,10 @@ static void __locks_wake_up_blocks(struct file_lock_core *blocker)
  *
  *	lockd/nfsd need to disconnect the lock while working on it.
  */
-int locks_delete_block(struct file_lock *waiter)
+int locks_delete_block(struct file_lock *waiter_fl)
 {
 	int status = -ENOENT;
+	struct file_lock_core *waiter = &waiter_fl->fl_core;
 
 	/*
 	 * If fl_blocker is NULL, it won't be set again as this thread "owns"
@@ -722,21 +723,21 @@ int locks_delete_block(struct file_lock *waiter)
 	 * no new locks can be inserted into its fl_blocked_requests list, and
 	 * can avoid doing anything further if the list is empty.
 	 */
-	if (!smp_load_acquire(&waiter->fl_core.flc_blocker) &&
-	    list_empty(&waiter->fl_core.flc_blocked_requests))
+	if (!smp_load_acquire(&waiter->flc_blocker) &&
+	    list_empty(&waiter->flc_blocked_requests))
 		return status;
 
 	spin_lock(&blocked_lock_lock);
-	if (waiter->fl_core.flc_blocker)
+	if (waiter->flc_blocker)
 		status = 0;
-	__locks_wake_up_blocks(&waiter->fl_core);
-	__locks_delete_block(&waiter->fl_core);
+	__locks_wake_up_blocks(waiter);
+	__locks_delete_block(waiter);
 
 	/*
 	 * The setting of fl_blocker to NULL marks the "done" point in deleting
 	 * a block. Paired with acquire at the top of this function.
 	 */
-	smp_store_release(&waiter->fl_core.flc_blocker, NULL);
+	smp_store_release(&waiter->flc_blocker, NULL);
 	spin_unlock(&blocked_lock_lock);
 	return status;
 }

-- 
2.43.0