From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752528AbeERHvE (ORCPT ); Fri, 18 May 2018 03:51:04 -0400 Received: from mail-qt0-f194.google.com ([209.85.216.194]:42313 "EHLO mail-qt0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751506AbeERHuZ (ORCPT ); Fri, 18 May 2018 03:50:25 -0400 X-Google-Smtp-Source: AB8JxZp3HKLgdbQ80me75owMpd/jZDP35PO9RvAK1nnZP6V5l6nLAuUM6+OKEAeGc6Mc2VTt9emcrQ== From: Kent Overstreet To: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-mm@kvack.org, Jens Axboe , Ingo Molnar Cc: Kent Overstreet Subject: [PATCH 10/10] block: Add sysfs entry for fua support Date: Fri, 18 May 2018 03:49:17 -0400 Message-Id: <20180518074918.13816-20-kent.overstreet@gmail.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180518074918.13816-1-kent.overstreet@gmail.com> References: <20180518074918.13816-1-kent.overstreet@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Kent Overstreet --- block/blk-sysfs.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c index cbea895a55..d6dd7d8198 100644 --- a/block/blk-sysfs.c +++ b/block/blk-sysfs.c @@ -497,6 +497,11 @@ static ssize_t queue_wc_store(struct request_queue *q, const char *page, return count; } +static ssize_t queue_fua_show(struct request_queue *q, char *page) +{ + return sprintf(page, "%u\n", test_bit(QUEUE_FLAG_FUA, &q->queue_flags)); +} + static ssize_t queue_dax_show(struct request_queue *q, char *page) { return queue_var_show(blk_queue_dax(q), page); @@ -665,6 +670,11 @@ static struct queue_sysfs_entry queue_wc_entry = { .store = queue_wc_store, }; +static struct queue_sysfs_entry queue_fua_entry = { + .attr = {.name = "fua", .mode = S_IRUGO }, + .show = queue_fua_show, +}; + static struct queue_sysfs_entry queue_dax_entry = { .attr = {.name = "dax", .mode = S_IRUGO }, .show = queue_dax_show, @@ -714,6 +724,7 @@ static struct attribute *default_attrs[] = { &queue_random_entry.attr, &queue_poll_entry.attr, &queue_wc_entry.attr, + &queue_fua_entry.attr, &queue_dax_entry.attr, &queue_wb_lat_entry.attr, &queue_poll_delay_entry.attr, -- 2.17.0