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