linux-kernel - [PATCH 13/16] driver/staging/android: Use rlimit_to_nice to replace opened code implementation.

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Message-Id: <4748d2da179215c9563d84a304c02e677eaa4222.1394529373.git.yangds.fnst@cn.fujitsu.com>
Date:	Tue, 11 Mar 2014 17:20:34 +0800
From:	Dongsheng Yang <yangds.fnst@...fujitsu.com>
To:	linux-kernel@...r.kernel.org
Cc:	joe@...ches.com, peterz@...radead.org, mingo@...nel.org,
	tglx@...utronix.de, heiko.carstens@...ibm.com,
	Dongsheng Yang <yangds.fnst@...fujitsu.com>,
	devel@...verdev.osuosl.org, Masanari Iida <standby24x7@...il.com>,
	Bojan Prtvar <prtvar.b@...il.com>,
	Serban Constantinescu <serban.constantinescu@....com>
Subject: [PATCH 13/16] driver/staging/android: Use rlimit_to_nice to replace opened code implementation.

There is a macro rlimit_to_nice in linux/sched/prio.h to convert priority in rlimit
to nice value.

This patch replace the opened implementation with rlimit_to_nice.

Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
cc: devel@...verdev.osuosl.org
cc: Masanari Iida <standby24x7@...il.com>
cc: Bojan Prtvar <prtvar.b@...il.com>
cc: Serban Constantinescu <serban.constantinescu@....com>
Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
---
 drivers/staging/android/binder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 1432d95..19e844b 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -436,12 +436,12 @@ static void binder_set_nice(long nice)
 		set_user_nice(current, nice);
 		return;
 	}
-	min_nice = 20 - current->signal->rlim[RLIMIT_NICE].rlim_cur;
+	min_nice = rlimit_to_nice(current->signal->rlim[RLIMIT_NICE].rlim_cur);
 	binder_debug(BINDER_DEBUG_PRIORITY_CAP,
 		     "%d: nice value %ld not allowed use %ld instead\n",
 		      current->pid, nice, min_nice);
 	set_user_nice(current, min_nice);
-	if (min_nice < 20)
+	if (min_nice <= MAX_NICE)
 		return;
 	binder_user_error("%d RLIMIT_NICE not set\n", current->pid);
 }
-- 
1.8.2.1

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