From patchwork Wed Jan 31 23:02:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13540181 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 3AFE113A258; Wed, 31 Jan 2024 23:03:35 +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=1706742216; cv=none; b=Q8J5Ppw9eZ9/zIJqER5VLWzsBsfVWCsj9xLV8F/x0nHE2atRsOdZfbPQgOHknElFzIC0INUIEYeNPawat04w+sLOgjqLx5nGRowP7aHazDMSGbyCIEiSFMCz/wT9GaflWvZuiyQ6xDORUpFOdyzFJPCribBV2zmARhBnQU2jdh0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706742216; c=relaxed/simple; bh=Qv8I4OPOQFKNMU0YbGeVUmPm+8mCKSnxsP8/NBFTVaw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ChyOpZAewTMop5CU2cwFLGu/EJ5vzkiGSvEiJvHrxOw0nq2+PoLjCsN/r4ZHK3SUlq4dKcj+9MjT483IoQRzlWNjvFA1TJGolmmFs0Hbdgc3hba5whUY35BfiyXWqglXOwNOgxvfpOIVhPGoAoE5VTpGuThZe5iPYS8AlKury+Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Iw+CONjO; 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="Iw+CONjO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 17CA9C433C7; Wed, 31 Jan 2024 23:03:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706742215; bh=Qv8I4OPOQFKNMU0YbGeVUmPm+8mCKSnxsP8/NBFTVaw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Iw+CONjOOceGUzpk4GlJ8u7rTQddWR/k2+1U3g+5juIpk2W9ExXLCgTEVEfv6Kp7V 4zO1SbFzOgFWa41nxLOg7X+BPeKP4iu94MS+XQfqUY0uh/w9+JpU/P8mYBLn+BRLrQ okb/HO3F8YNBxS66SvQ3UGzbX1IkEgf1GnucwU8ggx00Wwu5t1T//cL80INmmZl+bk PibGtBA+CbHjfOXA0bebAYKCpLPy3OZ/yzVXEILoPrEifs95pioBl9FOPjsgn7g8w5 N746m9LQlPD/Nbv/zKfvjZyOIpkmWcOn3Jb4wngz1U/PWTtRGTiRb8+T7wG0zi5XNK AiqJFWzIexuXg== From: Jeff Layton Date: Wed, 31 Jan 2024 18:02:01 -0500 Subject: [PATCH v3 20/47] filelock: make posix_same_owner take file_lock_core pointers Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240131-flsplit-v3-20-c6129007ee8d@kernel.org> References: <20240131-flsplit-v3-0-c6129007ee8d@kernel.org> In-Reply-To: <20240131-flsplit-v3-0-c6129007ee8d@kernel.org> To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Chuck Lever , Alexander Viro , Christian Brauner , Jan Kara , Eric Van Hensbergen , Latchesar Ionkov , Dominique Martinet , Christian Schoenebeck , David Howells , Marc Dionne , Xiubo Li , Ilya Dryomov , Alexander Aring , David Teigland , Andreas Gruenbacher , Neil Brown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Trond Myklebust , Anna Schumaker , Mark Fasheh , Joel Becker , Joseph Qi , Steve French , Paulo Alcantara , Ronnie Sahlberg , Shyam Prasad N , Namjae Jeon , Sergey Senozhatsky , Miklos Szeredi Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, v9fs@lists.linux.dev, linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org, gfs2@lists.linux.dev, linux-nfs@vger.kernel.org, ocfs2-devel@lists.linux.dev, linux-cifs@vger.kernel.org, Jeff Layton X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2863; i=jlayton@kernel.org; h=from:subject:message-id; bh=Qv8I4OPOQFKNMU0YbGeVUmPm+8mCKSnxsP8/NBFTVaw=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBlutFwIAIZzH6gn1mLBrHMjdFNmI6uHABwgegNG TDAgU+ZWnKJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZbrRcAAKCRAADmhBGVaC FRimEAC1tK4TT1crYkK2Tv6KsHknwHQk2Uf6BlvlbxpQn86QwhgP1+TEtY7ga6DQemHNUgq1exV pqC2lqqrLeSykb9JMRYWblebsmBGjm9cuAhbKss9Jb6+WNujt6ty6d0c74ys0VbX/j/F5qYVJYc v81YQJUmRRE9Ghwa/zjdM8XQrvO+1+HNxR17hE8rh+bpti5bzaKelAR+v5WKXusncE1TJZ3L2b1 +xgMklP1KUhK/iQ+K1YOEDZ16hdqyk4zzDEuuZcDAgRQ9Qz7JnFbwLA0TbHjhePwbC8kj6WQzjb AOK7ztCi/QXcHroOrcO0ucXQ25b7jDl7NlyDC6V/ZJkaoxpsNL8+HZ/hJruKULvDfgOU195t1Jo 3zGnHNHxgNfyWqTOPPj8xJelKt1mrmkbH67z3I+WGnZ1F1E39PrbDfiUM50NkPCw3teEGsFCKeo ZxgUJ/LevLO8sVnASkR2Nne1ZtEJtd8T3G3G46CENp7yRwmae4NTnnKqAk34XHrvjg/54gMss3H 5i+Cwt83ZjDJEU8pM6THUwESBszWPOK75qQWxYadugEomS7a/cI5ScubHzyJihaz2HKp9sM//Gr OGyZZeJDj5mxSt19X/DGhgjY9AU264IykhxhpadMbRZj67N5Jgjquxd0ZOyqTRXxoj/4WNTjD1n zfBCsyncG071TzA== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Change posix_same_owner to take struct file_lock_core pointers, and convert the callers to pass those in. Signed-off-by: Jeff Layton --- fs/locks.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 5d25a3f53c9d..9ff331b55b7a 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -590,9 +590,9 @@ static inline int locks_overlap(struct file_lock *fl1, struct file_lock *fl2) /* * Check whether two locks have the same owner. */ -static int posix_same_owner(struct file_lock *fl1, struct file_lock *fl2) +static int posix_same_owner(struct file_lock_core *fl1, struct file_lock_core *fl2) { - return fl1->c.flc_owner == fl2->c.flc_owner; + return fl1->flc_owner == fl2->flc_owner; } /* Must be called with the flc_lock held! */ @@ -857,7 +857,7 @@ static bool posix_locks_conflict(struct file_lock *caller_fl, /* POSIX locks owned by the same process do not conflict with * each other. */ - if (posix_same_owner(caller_fl, sys_fl)) + if (posix_same_owner(&caller_fl->c, &sys_fl->c)) return false; /* Check whether they overlap */ @@ -875,7 +875,7 @@ static bool posix_test_locks_conflict(struct file_lock *caller_fl, { /* F_UNLCK checks any locks on the same fd. */ if (lock_is_unlock(caller_fl)) { - if (!posix_same_owner(caller_fl, sys_fl)) + if (!posix_same_owner(&caller_fl->c, &sys_fl->c)) return false; return locks_overlap(caller_fl, sys_fl); } @@ -978,7 +978,7 @@ static struct file_lock *what_owner_is_waiting_for(struct file_lock *block_fl) struct file_lock *fl; hash_for_each_possible(blocked_hash, fl, c.flc_link, posix_owner_key(block_fl)) { - if (posix_same_owner(fl, block_fl)) { + if (posix_same_owner(&fl->c, &block_fl->c)) { while (fl->c.flc_blocker) fl = fl->c.flc_blocker; return fl; @@ -1005,7 +1005,7 @@ static int posix_locks_deadlock(struct file_lock *caller_fl, while ((block_fl = what_owner_is_waiting_for(block_fl))) { if (i++ > MAX_DEADLK_ITERATIONS) return 0; - if (posix_same_owner(caller_fl, block_fl)) + if (posix_same_owner(&caller_fl->c, &block_fl->c)) return 1; } return 0; @@ -1178,13 +1178,13 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request, /* Find the first old lock with the same owner as the new lock */ list_for_each_entry(fl, &ctx->flc_posix, c.flc_list) { - if (posix_same_owner(request, fl)) + if (posix_same_owner(&request->c, &fl->c)) break; } /* Process locks with this owner. */ list_for_each_entry_safe_from(fl, tmp, &ctx->flc_posix, c.flc_list) { - if (!posix_same_owner(request, fl)) + if (!posix_same_owner(&request->c, &fl->c)) break; /* Detect adjacent or overlapping regions (if same lock type) */