[PATCH 3/9] block: add REQ_DRV bit

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From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Keith Busch <keith.busch@intel.com>,
	Sagi Grimberg <sagi@grimberg.me>,
	linux-nvme@lists.infradead.org, linux-block@vger.kernel.org
Subject: [PATCH 3/9] block: add REQ_DRV bit
Date: Mon, 18 Sep 2017 16:14:47 -0700	[thread overview]
Message-ID: <20170918231453.27128-4-hch@lst.de> (raw)
In-Reply-To: <20170918231453.27128-1-hch@lst.de>

Set aside a bit in the request/bio flags for driver use.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/blk_types.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index acc2f3cdc2fc..7ec2ed097a8a 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -229,6 +229,9 @@ enum req_flag_bits {
 	/* command specific flags for REQ_OP_WRITE_ZEROES: */
 	__REQ_NOUNMAP,		/* do not free blocks when zeroing */
 
+	/* for driver use */
+	__REQ_DRV,
+
 	__REQ_NR_BITS,		/* stops here */
 };
 
@@ -249,6 +252,8 @@ enum req_flag_bits {
 
 #define REQ_NOUNMAP		(1ULL << __REQ_NOUNMAP)
 
+#define REQ_DRV			(1ULL << __REQ_DRV)
+
 #define REQ_FAILFAST_MASK \
 	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
 
-- 
2.14.1

WARNING: multiple messages have this Message-ID (diff)

From: hch@lst.de (Christoph Hellwig)
Subject: [PATCH 3/9] block: add REQ_DRV bit
Date: Mon, 18 Sep 2017 16:14:47 -0700	[thread overview]
Message-ID: <20170918231453.27128-4-hch@lst.de> (raw)
In-Reply-To: <20170918231453.27128-1-hch@lst.de>

Set aside a bit in the request/bio flags for driver use.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 include/linux/blk_types.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index acc2f3cdc2fc..7ec2ed097a8a 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -229,6 +229,9 @@ enum req_flag_bits {
 	/* command specific flags for REQ_OP_WRITE_ZEROES: */
 	__REQ_NOUNMAP,		/* do not free blocks when zeroing */
 
+	/* for driver use */
+	__REQ_DRV,
+
 	__REQ_NR_BITS,		/* stops here */
 };
 
@@ -249,6 +252,8 @@ enum req_flag_bits {
 
 #define REQ_NOUNMAP		(1ULL << __REQ_NOUNMAP)
 
+#define REQ_DRV			(1ULL << __REQ_DRV)
+
 #define REQ_FAILFAST_MASK \
 	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
 
-- 
2.14.1

next prev parent reply	other threads:[~2017-09-18 23:14 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-18 23:14 nvme multipath support V2 Christoph Hellwig
2017-09-18 23:14 ` Christoph Hellwig
2017-09-18 23:14 ` [PATCH 1/9] nvme: allow timed-out ios to retry Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-18 23:14 ` [PATCH 2/9] block: move REQ_NOWAIT Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-18 23:14 ` Christoph Hellwig [this message]
2017-09-18 23:14   ` [PATCH 3/9] block: add REQ_DRV bit Christoph Hellwig
2017-09-18 23:14 ` [PATCH 4/9] block: provide a direct_make_request helper Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-18 23:14 ` [PATCH 5/9] block: add a blk_steal_bios helper Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-18 23:14 ` [PATCH 6/9] nvme: track subsystems Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-21 22:52   ` Keith Busch
2017-09-21 22:52     ` Keith Busch
2017-09-18 23:14 ` [PATCH 7/9] nvme: introduce a nvme_ns_ids structure Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-20  8:27   ` Johannes Thumshirn
2017-09-20  8:27     ` Johannes Thumshirn
2017-09-18 23:14 ` [PATCH 8/9] nvme: track shared namespaces Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-20  8:36   ` Johannes Thumshirn
2017-09-20  8:36     ` Johannes Thumshirn
2017-09-20 14:54     ` Christoph Hellwig
2017-09-20 14:54       ` Christoph Hellwig
2017-09-21  5:22       ` Johannes Thumshirn
2017-09-21  5:22         ` Johannes Thumshirn
2017-09-21 14:37         ` Christoph Hellwig
2017-09-21 14:37           ` Christoph Hellwig
2017-09-21 15:16           ` Keith Busch
2017-09-21 15:16             ` Keith Busch
2017-09-24 15:25             ` Christoph Hellwig
2017-09-24 15:25               ` Christoph Hellwig
2017-09-18 23:14 ` [PATCH 9/9] nvme: implement multipath access to nvme subsystems Christoph Hellwig
2017-09-18 23:14   ` Christoph Hellwig
2017-09-20  0:18   ` Tony Yang
2017-09-20  0:18     ` Tony Yang
2017-09-20  8:15     ` Johannes Thumshirn
2017-09-20  8:15       ` Johannes Thumshirn
2017-09-20  9:42   ` Johannes Thumshirn
2017-09-20  9:42     ` Johannes Thumshirn
2017-09-20 22:58   ` Keith Busch
2017-09-20 22:58     ` Keith Busch
2017-09-20 23:52     ` Christoph Hellwig
2017-09-20 23:52       ` Christoph Hellwig
2017-09-21 21:12       ` Keith Busch
2017-09-21 21:12         ` Keith Busch
2017-09-24 14:42         ` Christoph Hellwig
2017-09-24 14:42           ` Christoph Hellwig
2017-09-22 15:09   ` Keith Busch
2017-09-22 15:09     ` Keith Busch
2017-09-24 14:48     ` Christoph Hellwig
2017-09-24 14:48       ` Christoph Hellwig
2017-09-20 11:09 ` nvme multipath support V2 Johannes Thumshirn
2017-09-20 11:09   ` Johannes Thumshirn
2017-09-20 14:55   ` Christoph Hellwig
2017-09-20 14:55     ` Christoph Hellwig
2017-09-21  5:23     ` Johannes Thumshirn
2017-09-21  5:23       ` Johannes Thumshirn
2017-09-21 14:50       ` Christoph Hellwig
2017-09-21 14:50         ` Christoph Hellwig
2017-09-22  0:21         ` Tony Yang
2017-09-22  0:21           ` Tony Yang
2017-09-24 14:41           ` Christoph Hellwig
2017-09-24 14:41             ` Christoph Hellwig

find likely ancestor, descendant, or conflicting patches for this message:
dfblob:acc2f3cdc2f dfblob:acc2f3cdc2f dfblob:7ec2ed097a8
dfblob:7ec2ed097a8
	(help)

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