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From: "Sébastien Dugué" <sebastien.dugue@bull.net>
To: linux-kernel <linux-kernel@vger.kernel.org>
Cc: Oleg Nesterov <oleg@tv-sign.ru>, Andrew Morton <akpm@osdl.org>,
	linux-aio <linux-aio@kvack.org>,
	Bharata B Rao <bharata@in.ibm.com>,
	Christoph Hellwig <hch@infradead.org>,
	Suparna Bhattacharya <suparna@in.ibm.com>,
	Ulrich Drepper <drepper@redhat.com>,
	Zach Brown <zach.brown@oracle.com>,
	Badari Pulavarty <pbadari@us.ibm.com>,
	Jean Pierre Dion <jean-pierre.dion@bull.net>
Subject: [PATCH -mm][AIO] AIO completion signal notification small cleanup
Date: Tue, 6 Feb 2007 12:57:09 +0100	[thread overview]
Message-ID: <20070206125709.1ec67113@frecb000686> (raw)
In-Reply-To: <20070206110539.GA129@tv-sign.ru>


  Andrew, one more cleanup to aio_setup_sigevent() to make it more readable.

  Sébastien.


From: Sébastien Dugué <sebastien.dugue@bull.net>

	AIO completion signal notification small cleanup

  This patch cleans up aio_setup_sigevent() to make it more readable.

 aio.c |   15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

Signed-off-by: Sébastien Dugué <sebastien.dugue@bull.net>


Index: linux-2.6.20-rc6-mm3/fs/aio.c
===================================================================
--- linux-2.6.20-rc6-mm3.orig/fs/aio.c	2007-02-06 09:33:55.000000000 +0100
+++ linux-2.6.20-rc6-mm3/fs/aio.c	2007-02-06 12:43:52.000000000 +0100
@@ -962,21 +962,11 @@ static long aio_setup_sigevent(struct ai
 	    event.sigev_notify != SIGEV_THREAD_ID)
 		return -EINVAL;
 
-	notify->notify = event.sigev_notify;
-	notify->signo = event.sigev_signo;
-	notify->value = event.sigev_value;
-
 	rcu_read_lock();
 	target = sigevent_find_task(&event);
 
-	if (unlikely(!target)) {
-		/*
-		 * Revert notify to SIGEV_NONE so that really_put_req()
-		 * knows that no ref has been taken on a task.
-		 */
-		notify->notify = SIGEV_NONE;
+	if (unlikely(!target))
 		goto out_unlock;
-	}
 
 	/*
 	 * At this point, we know that notify is either SIGEV_SIGNAL or
@@ -988,6 +978,9 @@ static long aio_setup_sigevent(struct ai
 	notify->target = target;
 	rcu_read_unlock();
 
+	notify->notify = event.sigev_notify;
+	notify->signo = event.sigev_signo;
+	notify->value = event.sigev_value;
 	notify->sigq = __sigqueue_alloc(current, GFP_KERNEL, 0);
 
 	/*

  parent reply	other threads:[~2007-02-06 11:58 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-01  9:22 [PATCH -mm 0/7][AIO] - AIO completion signal notification v6 Sébastien Dugué
2007-02-01  9:26 ` [PATCH -mm 1/7][AIO] - Rework compat_sys_io_submit Sébastien Dugué
2007-02-01  9:29 ` [PATCH -mm 2/7][AIO] - fix aio.h includes Sébastien Dugué
2007-02-01  9:30 ` [PATCH -mm 3/7][AIO] - Fix access_ok() checks Sébastien Dugué
2007-02-01  9:30 ` [PATCH -mm 4/7][AIO] - Make good_sigevent() non-static Sébastien Dugué
2007-02-02 18:00   ` Oleg Nesterov
2007-02-05 11:09     ` Sébastien Dugué
2007-02-05 12:18     ` [PATCH -mm 4/7][AIO] Resend " Sébastien Dugué
2007-02-05 13:43       ` Oleg Nesterov
2007-02-05 16:00         ` [PATCH -mm][AIO] Fix AIO completion signal notification possible ref leak Sébastien Dugué
2007-02-05 17:13           ` Oleg Nesterov
2007-02-06  8:31             ` Sébastien Dugué
2007-02-06  9:22             ` [PATCH -mm][AIO] AIO completion signal notification fixes and cleanups Sébastien Dugué
2007-02-06 11:05               ` Oleg Nesterov
2007-02-06 11:39                 ` Sébastien Dugué
2007-02-06 11:57                 ` Sébastien Dugué [this message]
2007-02-01  9:31 ` [PATCH -mm 5/7][AIO] - Make __sigqueue_free() and __sigqueue_alloc() non static Sébastien Dugué
2007-02-01  9:31 ` [PATCH -mm 6/7][AIO] - AIO completion signal notification Sébastien Dugué
2007-02-01  9:32 ` [PATCH -mm 7/7][AIO] - Add listio syscall support Sébastien Dugué

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