From: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
To: linux-block@vger.kernel.org
Cc: axboe@kernel.dk, hch@lst.de,
Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Subject: [PATCH 2/8] null_blk: add REQ_OP_WRITE_ZEROES config property
Date: Thu, 11 Jul 2019 10:53:22 -0700 [thread overview]
Message-ID: <20190711175328.16430-3-chaitanya.kulkarni@wdc.com> (raw)
In-Reply-To: <20190711175328.16430-1-chaitanya.kulkarni@wdc.com>
This is a preparation patch for implementing the support for the
write-zeroes operations for null_blk. We introduce a new bool flag
write-zeroes for nullb_device structure so that user can either set
this value through configfs when null_blk is memory backed or use
module parameter. Following two patches are implementing respective
support for REQ_OP_WRITE_ZEROES.
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
drivers/block/null_blk.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/block/null_blk.h b/drivers/block/null_blk.h
index 34b22d6523ba..ecd1e45f6eb9 100644
--- a/drivers/block/null_blk.h
+++ b/drivers/block/null_blk.h
@@ -63,6 +63,7 @@ struct nullb_device {
bool power; /* power on/off the device */
bool memory_backed; /* if data is stored in memory */
bool discard; /* if support discard */
+ bool write_zeroes; /* if support write_zeroes */
bool zoned; /* if device is zoned */
};
--
2.17.0
next prev parent reply other threads:[~2019-07-11 17:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-11 17:53 [PATCH 0/8] null_blk: add missing write-zeroes and discard support Chaitanya Kulkarni
2019-07-11 17:53 ` [PATCH 1/8] null_blk: add module parameter for REQ_OP_DISCARD Chaitanya Kulkarni
2019-07-28 6:04 ` Minwoo Im
2019-07-30 4:48 ` Chaitanya Kulkarni
2019-07-11 17:53 ` Chaitanya Kulkarni [this message]
2019-07-28 6:17 ` [PATCH 2/8] null_blk: add REQ_OP_WRITE_ZEROES config property Minwoo Im
2019-07-11 17:53 ` [PATCH 3/8] null_blk: add support for write-zeroes Chaitanya Kulkarni
2019-07-28 6:08 ` Minwoo Im
2019-07-11 17:53 ` [PATCH 4/8] null_blk: allow memory-backed write-zeroes-req Chaitanya Kulkarni
2019-07-28 6:11 ` Minwoo Im
2019-07-11 17:53 ` [PATCH 5/8] null_blk: code cleaup Chaitanya Kulkarni
2019-07-28 6:12 ` Minwoo Im
2019-07-11 17:53 ` [PATCH 6/8] null_blk: allow memory-backed write-zeroes-bio Chaitanya Kulkarni
2019-07-28 6:18 ` Minwoo Im
2019-07-11 17:53 ` [PATCH 7/8] null_blk: add support for configfs write_zeroes Chaitanya Kulkarni
2019-07-11 17:53 ` [PATCH 8/8] null_blk: adjusts the code with latest changes Chaitanya Kulkarni
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