From patchwork Thu Jan 25 10:43:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13530485 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5B6906087B; Thu, 25 Jan 2024 10:44:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706179468; cv=none; b=dSMLdGXrP1J98S9FafUNk5uvc89KiLBp6pYxkj9GbtFDMN+I0wWDGasWQd5e3YmtpG3JbvAG4C1mgHMcMdNBTn77rYQttYkWXlVB5BqKRzf3jS0H2C+JyxtSr3cVcFs9EjetCHdHs5YHT9iiQoncNa5zGWgB62rgo9Ro5Lk+mFw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706179468; c=relaxed/simple; bh=xEH7T9zAfy3Zq5qW5HBkaCebYL132D5N/i5X+abBr/A=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qEyX17c7efdugZDT+OhNEzNw5tvtxU1xqSMfzbKGzz/m792a7/tVZtz1/xSJ2ermHJZKMJHK5JFTzUq+AC38G/1tb1cQWvH8mOSz3QF9f3R0OkHPfWyaJHWl6EF/VYYFEkJpcckhalg/uC51yQEpgUlYyrXIreZBlDiOPvttV5I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=eTFJtdJw; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="eTFJtdJw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 470EFC433B2; Thu, 25 Jan 2024 10:44:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706179467; bh=xEH7T9zAfy3Zq5qW5HBkaCebYL132D5N/i5X+abBr/A=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=eTFJtdJwPA9h/0aH8gznSxkIOCiS6LsmYImMTn4YRHQfc0t/SFGIXoxLO6bKzcORs 6u0Zwfx+JvmmI8IMmVRVX8gZp5xrcIPK8NGFFBWsL7LZTkNkGPy9FqC+ukG4zOjTef PXphh5Qd72sYCjpg9LNDybYoUoIIaKjT+Abrj0R2FSgl+hAp9iPyHk6X3qRmxkep9f gYtIB1+MjET3246GM1Uy7MsgpBmuImJnhHrBifQ4ChZB1L8+/IFhTOxg6VXVhwVWqX B3awEMmU0HxcUTSO9JepifANCgNKW1Y8GMLzhAEJgtO04H3Al1IwrVWqaJpRWMZlA7 ngw2xOxjzimxA== From: Jeff Layton Date: Thu, 25 Jan 2024 05:43:00 -0500 Subject: [PATCH v2 19/41] filelock: make __locks_delete_block and __locks_wake_up_blocks take file_lock_core Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240125-flsplit-v2-19-7485322b62c7@kernel.org> References: <20240125-flsplit-v2-0-7485322b62c7@kernel.org> In-Reply-To: <20240125-flsplit-v2-0-7485322b62c7@kernel.org> To: Christian Brauner , Alexander Viro , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Howells , Marc Dionne , Xiubo Li , Ilya Dryomov , Alexander Aring , David Teigland , Miklos Szeredi , Andreas Gruenbacher , Trond Myklebust , Anna Schumaker , Chuck Lever , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Jan Kara , Mark Fasheh , Joel Becker , Joseph Qi , Steve French , Paulo Alcantara , Shyam Prasad N , Namjae Jeon , Sergey Senozhatsky , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Ronnie Sahlberg 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 X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=4107; i=jlayton@kernel.org; h=from:subject:message-id; bh=xEH7T9zAfy3Zq5qW5HBkaCebYL132D5N/i5X+abBr/A=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBlsjs8Sefnc019u18YQH+g88ChpnPWXVEzAJQm/ YAZffDHvoiJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZbI7PAAKCRAADmhBGVaC FWZtD/47lA1y7kyUu+yJ0GoyXZ36UN7MGGsKRq8uf+ar92a2JuwUjmfVlUQN4u/fTthvH0GaQsD oPSJVG7Fy9Rdj4QfjluBLwur5tF+ExXrnjP9im9oD/4q+2peLKLZppOd2FQHdbN/CtHfeFWfsir rdz40NkhjkelfRyFRfv3scrkYwpe/axW4nW6ikyEBHZpj3TpLA0uIfdA0yHxr7RZlWAvqFnyE0M gQ/connbf103sy/+Jq9oyJCJqmEPI3fh8vSLMhsB1iKD5CUWXQSQlq0kPDd+l6NWTANxCCtshFe +mOcu9YLvjd6IjdeP7WXc4ZgkHVTtfWFFIVAZZjlnxk6m8fKAET0MEPj59KdXZcVIOWcxk/i+wt 6zgf4nMPrDgo2SIPrqeHAIJlAgbxgweknEm0RCnmFrcQJ1Y7zoDCh6+YRp/F9kKuKFTLV8n4G5g Y5IXmJmeLFtgfGY+aFNoEOTuIo5yNEsZaxhNaNPJjJagNbrUtSC3Q6ShW1TLVIC1Nj9anto8hXU 0Hd6Ji0XxoJCzzCCemwH3iqQxpJI0MyVVeoQ7S0AdW+PuzMhOKJPTgrV3TRa8UdX0Bsx/KcpviV IGTn3bUckr7E2vZh6cY2nnpZv4H5OvC+c9vfKNvrO4i6dXgBt2yR/crobgewwr06MneRWvTBilM pWVkMX/PD16hW2A== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Convert __locks_delete_block and __locks_wake_up_blocks to take a struct file_lock_core pointer. While we could do this in another way, we're going to need to add a file_lock() helper function later anyway, so introduce and use it now. Signed-off-by: Jeff Layton --- fs/locks.c | 45 +++++++++++++++++++++++++++------------------ 1 file changed, 27 insertions(+), 18 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index d6d47612527c..fb113103dc1b 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -69,6 +69,11 @@ #include +static struct file_lock *file_lock(struct file_lock_core *flc) +{ + return container_of(flc, struct file_lock, fl_core); +} + static bool lease_breaking(struct file_lock *fl) { return fl->fl_core.flc_flags & (FL_UNLOCK_PENDING | FL_DOWNGRADE_PENDING); @@ -654,31 +659,35 @@ static void locks_delete_global_blocked(struct file_lock_core *waiter) * * Must be called with blocked_lock_lock held. */ -static void __locks_delete_block(struct file_lock *waiter) +static void __locks_delete_block(struct file_lock_core *waiter) { - locks_delete_global_blocked(&waiter->fl_core); - list_del_init(&waiter->fl_core.flc_blocked_member); + locks_delete_global_blocked(waiter); + list_del_init(&waiter->flc_blocked_member); } -static void __locks_wake_up_blocks(struct file_lock *blocker) +static void __locks_wake_up_blocks(struct file_lock_core *blocker) { - while (!list_empty(&blocker->fl_core.flc_blocked_requests)) { - struct file_lock *waiter; + while (!list_empty(&blocker->flc_blocked_requests)) { + struct file_lock_core *waiter; + struct file_lock *fl; + + waiter = list_first_entry(&blocker->flc_blocked_requests, + struct file_lock_core, flc_blocked_member); - waiter = list_first_entry(&blocker->fl_core.flc_blocked_requests, - struct file_lock, fl_core.flc_blocked_member); + fl = file_lock(waiter); __locks_delete_block(waiter); - if (waiter->fl_lmops && waiter->fl_lmops->lm_notify) - waiter->fl_lmops->lm_notify(waiter); + if ((waiter->flc_flags & (FL_POSIX | FL_FLOCK)) && + fl->fl_lmops && fl->fl_lmops->lm_notify) + fl->fl_lmops->lm_notify(fl); else - wake_up(&waiter->fl_core.flc_wait); + wake_up(&waiter->flc_wait); /* - * The setting of fl_blocker to NULL marks the "done" + * The setting of flc_blocker to NULL marks the "done" * point in deleting a block. Paired with acquire at the top * of locks_delete_block(). */ - smp_store_release(&waiter->fl_core.flc_blocker, NULL); + smp_store_release(&waiter->flc_blocker, NULL); } } @@ -720,8 +729,8 @@ int locks_delete_block(struct file_lock *waiter) spin_lock(&blocked_lock_lock); if (waiter->fl_core.flc_blocker) status = 0; - __locks_wake_up_blocks(waiter); - __locks_delete_block(waiter); + __locks_wake_up_blocks(&waiter->fl_core); + __locks_delete_block(&waiter->fl_core); /* * The setting of fl_blocker to NULL marks the "done" point in deleting @@ -773,7 +782,7 @@ static void __locks_insert_block(struct file_lock *blocker, * waiter, but might not conflict with blocker, or the requests * and lock which block it. So they all need to be woken. */ - __locks_wake_up_blocks(waiter); + __locks_wake_up_blocks(&waiter->fl_core); } /* Must be called with flc_lock held. */ @@ -805,7 +814,7 @@ static void locks_wake_up_blocks(struct file_lock *blocker) return; spin_lock(&blocked_lock_lock); - __locks_wake_up_blocks(blocker); + __locks_wake_up_blocks(&blocker->fl_core); spin_unlock(&blocked_lock_lock); } @@ -1159,7 +1168,7 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request, * Ensure that we don't find any locks blocked on this * request during deadlock detection. */ - __locks_wake_up_blocks(request); + __locks_wake_up_blocks(&request->fl_core); if (likely(!posix_locks_deadlock(request, fl))) { error = FILE_LOCK_DEFERRED; __locks_insert_block(fl, request,