From patchwork Tue Jan 16 19:46:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13521124 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 F05D622327; Tue, 16 Jan 2024 19:47:45 +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=1705434466; cv=none; b=PFYJFyAtn3D3rwT9PY8Hx5oimjeVTimj67gRI28PGTiKY3BfcyakUUoJ0xm7Ed5q9uUef+GNaE40PuR6gOoOiDllAM7oFOgKCa+n6+A2CGQ7yOU6Wy1yxkrexxSXvael7fYYy6ndzPxV09sOHpb8bjVIz+YQPwezgRXm7Pxqp78= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705434466; c=relaxed/simple; bh=k31YYXg5FDv3rraEGkSgE9ZS/UMoQf+Bn2AlHkK2D+Y=; h=Received:DKIM-Signature:From:Date:Subject:MIME-Version: Content-Type:Content-Transfer-Encoding:Message-Id:References: In-Reply-To:To:Cc:X-Mailer:X-Developer-Signature:X-Developer-Key; b=p/olZxMfataSKoL8Sh0IPAhSoBCDj8x3kyU/DeXt8aznzxecTxFD+1jQ9YM04l7BHR552qzt8c4D4k0qsMcmK5AIlNXAozoqBBJzjEsbVguXtO9OY39RAmDvTCm/FUhkz1hE7+ylNCHVMZGGbmCkdbpEodTlisclrZfWnWyVYgo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Euy8jp42; 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="Euy8jp42" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2588BC43142; Tue, 16 Jan 2024 19:47:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705434465; bh=k31YYXg5FDv3rraEGkSgE9ZS/UMoQf+Bn2AlHkK2D+Y=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Euy8jp42XA5XpHnPXHrVkcKDXDfmeE85YbvjbgSQgcf4LbN9g/kxZDRvpau1jA1He f3KDRyqlNMHDpklXXBduM0sjx+2jzV2R2Lz5IP3ItkgKlGdq1NE2sHQBgDMZP+9aZZ E+BFXJxcg2sDonqdLfOG7sNjRhZ/sLdEUH8RBHt+PJ3Jusba6yLMFUloE4Er+9xKN6 39ri7F5c3CWMxFP8m4XuT5e8FY/4FYS5gywMgABTg1dzODxsYG9TK/Bl69axIxzfca xsDL6egBAH5pHVleqfMBauOtlV9UE3o/bV3ryjSGiHpJkDmVJ0lximdd46YaCprENE zdu5t3B3TsOTQ== From: Jeff Layton Date: Tue, 16 Jan 2024 14:46:11 -0500 Subject: [PATCH 15/20] filelock: clean up locks_delete_block internals Precedence: bulk X-Mailing-List: ceph-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240116-flsplit-v1-15-c9d0f4370a5d@kernel.org> References: <20240116-flsplit-v1-0-c9d0f4370a5d@kernel.org> In-Reply-To: <20240116-flsplit-v1-0-c9d0f4370a5d@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 , Ronnie Sahlberg , Shyam Prasad N , Namjae Jeon , Sergey Senozhatsky , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers 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, samba-technical@lists.samba.org, linux-trace-kernel@vger.kernel.org, Jeff Layton X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1881; i=jlayton@kernel.org; h=from:subject:message-id; bh=k31YYXg5FDv3rraEGkSgE9ZS/UMoQf+Bn2AlHkK2D+Y=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBlpt0iOaoejNGmyUHU5TWqFozQu5KOWFSGI/C7u k7MmzGMzSGJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZabdIgAKCRAADmhBGVaC FUKPEAC5Vb2188d7pEqtHBFUx21aU2oHLqH8KgcTxbFjDoYS6uTISygh9vaZ/BxicnDFRUFlAf4 UUzvWZwqlF2JreutIWvZ8/3vkumPFfPIBuKP2ghif6h4eOswePI+WKe9wIpM3M06SEBaVb+aWay IUcrFcG0XzDKBUpwr55kP5CDYXNsjQHTLgrUVtoCK6A6OuzRbh4WE0ILtek4g5c4MwO00WiL5vi kVXb7e6AMqLJoZwkbIeN5bV/DZTIvrI71HfnenLai2sHVtDUfC1bO3gR4Z8He20hXE3wgTJe7xY IrYp0A9FCcjxv1iMHNuQaT+lQQw1XkilxuYAXZ6qdnsx2GXMk3MHUvuBpxiZYzt5djBv+Oo1+K5 2wINec6lLFIj/rYyTeBWdMuOCWXSANwXVyEl9XckkRmJUVG3rTx7oIEhtDa5S9bK3nd1Pq6e+DH Nrx2Gzbt9CwR4KJEy90sLDTtKEduiUgpln57bMJgTBgrguYzODQZqajizQh5vmjWo83RSvQQJOU W74f/b92sAJwGAsz2vxdrnZZsKYGVIUWz226rRSQ/pZS+gmJ+h5EHX5efWmrbpLP6M/HV/0a78E 7AZyluCCd7LDYNaHNZ4ucfc+sD4aGJGnR3nw6QABf3XRuVPFG7Kw8lQCECLdVH9yufmN/H1nHJL TvrKQKYa7K1yGIQ== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 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 --- fs/locks.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 1bc69a96b96d..3a028a8aafeb 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -720,9 +720,10 @@ 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" @@ -745,21 +746,21 @@ 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.fl_blocker) && - list_empty(&waiter->fl_core.fl_blocked_requests)) + if (!smp_load_acquire(&waiter->fl_blocker) && + list_empty(&waiter->fl_blocked_requests)) return status; spin_lock(&blocked_lock_lock); - if (waiter->fl_core.fl_blocker) + if (waiter->fl_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.fl_blocker, NULL); + smp_store_release(waiter->fl_blocker, NULL); spin_unlock(&blocked_lock_lock); return status; }