linux-ext4 - [PATCH v3 2/7] block: introduce API to register stream information with block layer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 29 Mar 2019 13:23:47 +0530
From:   Kanchan Joshi <joshi.k@...sung.com>
To:     linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-nvme@...ts.infradead.org, linux-fsdevel@...r.kernel.org,
        linux-ext4@...r.kernel.org
Cc:     axboe@...com, prakash.v@...sung.com, anshul@...sung.com,
        joshiiitr@...il.com, Kanchan Joshi <joshi.k@...sung.com>
Subject: [PATCH v3 2/7] block: introduce API to register stream information
 with block layer

This associates stream limit (count of streams exposed by driver) with
request queue.

Signed-off-by: Kanchan Joshi <joshi.k@...sung.com>
---
 block/blk-settings.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/block/blk-settings.c b/block/blk-settings.c
index 3e7038e..bb0da61 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -231,6 +231,18 @@ void blk_queue_max_discard_sectors(struct request_queue *q,
 EXPORT_SYMBOL(blk_queue_max_discard_sectors);
 
 /**
+ * blk_queue_stream_limits - set stream parameters
+ * @q:  the request queue for the device
+ * @nr_streams: number of streams supported by device
+ **/
+void blk_queue_stream_limits(struct request_queue *q,
+		unsigned short nr_streams)
+{
+	q->limits.nr_streams = nr_streams;
+}
+EXPORT_SYMBOL(blk_queue_stream_limits);
+
+/**
  * blk_queue_max_write_same_sectors - set max sectors for a single write same
  * @q:  the request queue for the device
  * @max_write_same_sectors: maximum number of sectors to write per command
-- 
2.7.4