From patchwork Thu Jan 25 10:43:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13530489 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 B64486169B; Thu, 25 Jan 2024 10:44:43 +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=1706179483; cv=none; b=h6kNJYzpwwAuOiO79AcloWaDqvU11rCfp51DPVcTNjTpAU5dlAKfyv5oxp6anHdUaef0lpNolk1sbx5yv4Smd8ZX8pW+nrbIAooxwrwPdNwe6R5JL6hVWJ7Xm37y59Gs3tGji7DWWL8fPGdYt/xNA7ByVm6BLhoWwaVCFDY97Es= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706179483; c=relaxed/simple; bh=P81l9CeupMYdqhOH3E0vPo3/X1cBmXJaSRU1Gd76sZo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=W6rEUX4er94QZF+k6aiXW1C2U5zq8h6haXw/nrz35HRjqzys2uBPo4RPaES9+YNgiId/QfcwsVo8zT9+xJyYxwfX6hE1zf48M8GO2iinkm+h7X+ax+epyqAdR68TM0DA/hpJSQXpCNzXi/tTEz8KjF39wyqlHS70u+QN5qNxV+Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=X+xgrRXH; 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="X+xgrRXH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 984EEC43609; Thu, 25 Jan 2024 10:44:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706179483; bh=P81l9CeupMYdqhOH3E0vPo3/X1cBmXJaSRU1Gd76sZo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=X+xgrRXHwj3X9Z+wKEUAdpsITdY51l0/DrrmPcHe5wJzMCrxiuVe5l9+i2+DHbioH aFSfirU1QTiCgJst5ml2qFfu5tNW/2V/Ge2eg5j8ZzqaiiAuSdrDIG+SH4SbkxIZ87 6JpmeZhLRNeJlWPbVCh4kojN8RXRwj4KyzzYAilLsMA0k2xYEVgHmwuDGh0hrMEwR4 zUmerh0qwQRMKcFXH6Py46gOSGvwUJglbGZmRKnxtTL3X9h6x2Tv4trv4qD62LGWHb t0/2uYTS9ynBXWVYccz2dHGh8GCXj7Gog1qHfGW3RxOZYPTpN7Qrcs/wpd7HdGHZpC sKbRvNsGrsv7g== From: Jeff Layton Date: Thu, 25 Jan 2024 05:43:04 -0500 Subject: [PATCH v2 23/41] filelock: reorganize locks_delete_block and __locks_insert_block 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-v2-23-7485322b62c7@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=5086; i=jlayton@kernel.org; h=from:subject:message-id; bh=P81l9CeupMYdqhOH3E0vPo3/X1cBmXJaSRU1Gd76sZo=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBlsjs8xMA7qbl9kJbsMDBBCmzEcIA40ThoVKWlb 4BFfz22Z/2JAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZbI7PAAKCRAADmhBGVaC FZ6WD/961IPRxkXS8cop9gsr/jf4ahobJvArZA2jWSgjo3uWNHxHorj+j8aEu0+9nPgHvI1o+qm mEW96VcBHiE4XoQuNUStNRCd+qE8YxCC8e/2T0T+rX8b+cs2O3/QtgIIfPSIPPUXu0thcvvnvbJ x3L6tNzRYvWbFVnfYcV/hT7xqKyAgsgC97fg9FTYOwhlmWxwBPLmS+4dT2GdjQ89XSsTON6K/n8 b4XQdT6Ds5tSD0BO4WuHCblHp6vTUpenfiyNQ7prhZi+l63gC21oPb2fmQdkP2r5J8MjOWbIXQq g5GLnhI6rZZ3Va6E52c3uxAscKMmetu3RsOYIE/L8lQREB9kQw4iG1wBxuyUUZZ4edrOo3rSFJW VJgtvCq0Fh5yFHBBO5ynm2ltR1yfY3rBCp2F/qe+eb6LvagCay2ALxqtkNSCUtTOcKwBSwid6eD KtKqn9YmWjZ5AkjAta0XhYGU29reFEhDOW8HRrImJUPWmB+KfNO2HPWU2mGY9VPxV200UAJsTut NZBwfpzTLT1JeSbTwF3A/qh3bqKKA+vm4jBsERy/l+YiKz/UVLqZsVYBe2ElbKEnyRo3BwtvGku JV8oGCaa2Qs1kVpjKOBjOTMbetOTUpNkSdiRoaLWpWl5TXIjAMdkM5GG8S13QwoW6OTT6zzaFl0 nOA9GMbW6+0vedw== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Rename the old __locks_delete_block to __locks_unlink_lock. Rename change old locks_delete_block function to __locks_delete_block and have it take a file_lock_core. Make locks_delete_block a simple wrapper around __locks_delete_block. Also, change __locks_insert_block to take struct file_lock_core, and fix up its callers. Signed-off-by: Jeff Layton --- fs/locks.c | 42 ++++++++++++++++++++++-------------------- 1 file changed, 22 insertions(+), 20 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 739af36d98df..647a778d2c85 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -659,7 +659,7 @@ 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_core *waiter) +static void __locks_unlink_block(struct file_lock_core *waiter) { locks_delete_global_blocked(waiter); list_del_init(&waiter->flc_blocked_member); @@ -675,7 +675,7 @@ static void __locks_wake_up_blocks(struct file_lock_core *blocker) struct file_lock_core, flc_blocked_member); fl = file_lock(waiter); - __locks_delete_block(waiter); + __locks_unlink_block(waiter); if ((waiter->flc_flags & (FL_POSIX | FL_FLOCK)) && fl->fl_lmops && fl->fl_lmops->lm_notify) fl->fl_lmops->lm_notify(fl); @@ -691,16 +691,9 @@ static void __locks_wake_up_blocks(struct file_lock_core *blocker) } } -/** - * locks_delete_block - stop waiting for a file lock - * @waiter: the lock which was waiting - * - * lockd/nfsd need to disconnect the lock while working on it. - */ -int locks_delete_block(struct file_lock *waiter_fl) +static int __locks_delete_block(struct file_lock_core *waiter) { 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" @@ -731,7 +724,7 @@ int locks_delete_block(struct file_lock *waiter_fl) if (waiter->flc_blocker) status = 0; __locks_wake_up_blocks(waiter); - __locks_delete_block(waiter); + __locks_unlink_block(waiter); /* * The setting of fl_blocker to NULL marks the "done" point in deleting @@ -741,6 +734,17 @@ int locks_delete_block(struct file_lock *waiter_fl) spin_unlock(&blocked_lock_lock); return status; } + +/** + * locks_delete_block - stop waiting for a file lock + * @waiter: the lock which was waiting + * + * lockd/nfsd need to disconnect the lock while working on it. + */ +int locks_delete_block(struct file_lock *waiter) +{ + return __locks_delete_block(&waiter->fl_core); +} EXPORT_SYMBOL(locks_delete_block); /* Insert waiter into blocker's block list. @@ -758,13 +762,11 @@ EXPORT_SYMBOL(locks_delete_block); * waiters, and add beneath any waiter that blocks the new waiter. * Thus wakeups don't happen until needed. */ -static void __locks_insert_block(struct file_lock *blocker_fl, - struct file_lock *waiter_fl, +static void __locks_insert_block(struct file_lock_core *blocker, + struct file_lock_core *waiter, bool conflict(struct file_lock_core *, struct file_lock_core *)) { - struct file_lock_core *blocker = &blocker_fl->fl_core; - struct file_lock_core *waiter = &waiter_fl->fl_core; struct file_lock_core *flc; BUG_ON(!list_empty(&waiter->flc_blocked_member)); @@ -789,8 +791,8 @@ static void __locks_insert_block(struct file_lock *blocker_fl, } /* Must be called with flc_lock held. */ -static void locks_insert_block(struct file_lock *blocker, - struct file_lock *waiter, +static void locks_insert_block(struct file_lock_core *blocker, + struct file_lock_core *waiter, bool conflict(struct file_lock_core *, struct file_lock_core *)) { @@ -1088,7 +1090,7 @@ static int flock_lock_inode(struct inode *inode, struct file_lock *request) if (!(request->fl_core.flc_flags & FL_SLEEP)) goto out; error = FILE_LOCK_DEFERRED; - locks_insert_block(fl, request, flock_locks_conflict); + locks_insert_block(&fl->fl_core, &request->fl_core, flock_locks_conflict); goto out; } if (request->fl_core.flc_flags & FL_ACCESS) @@ -1182,7 +1184,7 @@ static int posix_lock_inode(struct inode *inode, struct file_lock *request, __locks_wake_up_blocks(&request->fl_core); if (likely(!posix_locks_deadlock(request, fl))) { error = FILE_LOCK_DEFERRED; - __locks_insert_block(fl, request, + __locks_insert_block(&fl->fl_core, &request->fl_core, posix_locks_conflict); } spin_unlock(&blocked_lock_lock); @@ -1575,7 +1577,7 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type) break_time -= jiffies; if (break_time == 0) break_time++; - locks_insert_block(fl, new_fl, leases_conflict); + locks_insert_block(&fl->fl_core, &new_fl->fl_core, leases_conflict); trace_break_lease_block(inode, new_fl); spin_unlock(&ctx->flc_lock); percpu_up_read(&file_rwsem);