Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755471AbZCXIEk (ORCPT ); Tue, 24 Mar 2009 04:04:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755114AbZCXIEP (ORCPT ); Tue, 24 Mar 2009 04:04:15 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:57325 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754503AbZCXIEN (ORCPT ); Tue, 24 Mar 2009 04:04:13 -0400 Message-ID: <49C89415.5080503@cn.fujitsu.com> Date: Tue, 24 Mar 2009 16:04:37 +0800 From: Li Zefan User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Ingo Molnar CC: Jens Axboe , Steven Rostedt , Frederic Weisbecker , Arnaldo Carvalho de Melo , LKML Subject: [PATCH 1/5] blktrace: mark ddir_act and what2act const References: <49C893FC.9080905@cn.fujitsu.com> In-Reply-To: <49C893FC.9080905@cn.fujitsu.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1555 Lines: 43 ddir_act and what2act are always stay immutable. Signed-off-by: Li Zefan --- kernel/trace/blktrace.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index 108f4f7..1ffcbd4 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -147,8 +147,8 @@ static int act_log_check(struct blk_trace *bt, u32 what, sector_t sector, /* * Data direction bit lookup */ -static u32 ddir_act[2] __read_mostly = { BLK_TC_ACT(BLK_TC_READ), - BLK_TC_ACT(BLK_TC_WRITE) }; +static const u32 ddir_act[2] = { BLK_TC_ACT(BLK_TC_READ), + BLK_TC_ACT(BLK_TC_WRITE) }; /* The ilog2() calls fall out because they're constant */ #define MASK_TC_BIT(rw, __name) ((rw & (1 << BIO_RW_ ## __name)) << \ @@ -1116,10 +1116,10 @@ static void blk_tracer_reset(struct trace_array *tr) blk_tracer_stop(tr); } -static struct { +static const struct { const char *act[2]; int (*print)(struct trace_seq *s, const struct trace_entry *ent); -} what2act[] __read_mostly = { +} what2act[] = { [__BLK_TA_QUEUE] = {{ "Q", "queue" }, blk_log_generic }, [__BLK_TA_BACKMERGE] = {{ "M", "backmerge" }, blk_log_generic }, [__BLK_TA_FRONTMERGE] = {{ "F", "frontmerge" }, blk_log_generic }, -- 1.5.4.rc3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/