From: mchristi@redhat.com
To: linux-f2fs-devel@lists.sourceforge.net,
linux-ext4@vger.kernel.org, konrad.wilk@oracle.com,
drbd-dev@lists.linbit.com, philipp.reisner@linbit.com,
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linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
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xfs@oss.sgi.com, ocfs2-devel@oss.oracle.com
Cc: Mike Christie <mchristi@redhat.com>
Subject: [PATCH 35/45] block: convert merge/insert code to check for REQ_OPs.
Date: Sun, 5 Jun 2016 14:32:15 -0500 [thread overview]
Message-ID: <1465155145-10812-36-git-send-email-mchristi@redhat.com> (raw)
In-Reply-To: <1465155145-10812-1-git-send-email-mchristi@redhat.com>
From: Mike Christie <mchristi@redhat.com>
This patch converts the block layer merging code to use separate variables
for the operation and flags, and to check req_op for the REQ_OP.
Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
---
block/blk-core.c | 2 +-
block/blk-merge.c | 10 ++++++----
include/linux/blkdev.h | 20 ++++++++++----------
3 files changed, 17 insertions(+), 15 deletions(-)
diff --git a/block/blk-core.c b/block/blk-core.c
index 090e55d..1333bb7 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2161,7 +2161,7 @@ EXPORT_SYMBOL(submit_bio);
static int blk_cloned_rq_check_limits(struct request_queue *q,
struct request *rq)
{
- if (blk_rq_sectors(rq) > blk_queue_get_max_sectors(q, rq->cmd_flags)) {
+ if (blk_rq_sectors(rq) > blk_queue_get_max_sectors(q, req_op(rq))) {
printk(KERN_ERR "%s: over max size limit.\n", __func__);
return -EIO;
}
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 5a03f96..c265348 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -649,7 +649,8 @@ static int attempt_merge(struct request_queue *q, struct request *req,
if (!rq_mergeable(req) || !rq_mergeable(next))
return 0;
- if (!blk_check_merge_flags(req->cmd_flags, next->cmd_flags))
+ if (!blk_check_merge_flags(req->cmd_flags, req_op(req), next->cmd_flags,
+ req_op(next)))
return 0;
/*
@@ -663,7 +664,7 @@ static int attempt_merge(struct request_queue *q, struct request *req,
|| req_no_special_merge(next))
return 0;
- if (req->cmd_flags & REQ_WRITE_SAME &&
+ if (req_op(req) == REQ_OP_WRITE_SAME &&
!blk_write_same_mergeable(req->bio, next->bio))
return 0;
@@ -751,7 +752,8 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
if (!rq_mergeable(rq) || !bio_mergeable(bio))
return false;
- if (!blk_check_merge_flags(rq->cmd_flags, bio->bi_rw))
+ if (!blk_check_merge_flags(rq->cmd_flags, req_op(rq), bio->bi_rw,
+ bio_op(bio)))
return false;
/* different data direction or already started, don't merge */
@@ -767,7 +769,7 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
return false;
/* must be using the same buffer */
- if (rq->cmd_flags & REQ_WRITE_SAME &&
+ if (req_op(rq) == REQ_OP_WRITE_SAME &&
!blk_write_same_mergeable(rq->bio, bio))
return false;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 8c78aca..25f01ff 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -666,16 +666,16 @@ static inline bool rq_mergeable(struct request *rq)
return true;
}
-static inline bool blk_check_merge_flags(unsigned int flags1,
- unsigned int flags2)
+static inline bool blk_check_merge_flags(unsigned int flags1, unsigned int op1,
+ unsigned int flags2, unsigned int op2)
{
- if ((flags1 & REQ_DISCARD) != (flags2 & REQ_DISCARD))
+ if ((op1 == REQ_OP_DISCARD) != (op2 == REQ_OP_DISCARD))
return false;
if ((flags1 & REQ_SECURE) != (flags2 & REQ_SECURE))
return false;
- if ((flags1 & REQ_WRITE_SAME) != (flags2 & REQ_WRITE_SAME))
+ if ((op1 == REQ_OP_WRITE_SAME) != (op2 == REQ_OP_WRITE_SAME))
return false;
return true;
@@ -887,12 +887,12 @@ static inline unsigned int blk_rq_cur_sectors(const struct request *rq)
}
static inline unsigned int blk_queue_get_max_sectors(struct request_queue *q,
- unsigned int cmd_flags)
+ int op)
{
- if (unlikely(cmd_flags & REQ_DISCARD))
+ if (unlikely(op == REQ_OP_DISCARD))
return min(q->limits.max_discard_sectors, UINT_MAX >> 9);
- if (unlikely(cmd_flags & REQ_WRITE_SAME))
+ if (unlikely(op == REQ_OP_WRITE_SAME))
return q->limits.max_write_same_sectors;
return q->limits.max_sectors;
@@ -919,11 +919,11 @@ static inline unsigned int blk_rq_get_max_sectors(struct request *rq)
if (unlikely(rq->cmd_type != REQ_TYPE_FS))
return q->limits.max_hw_sectors;
- if (!q->limits.chunk_sectors || (rq->cmd_flags & REQ_DISCARD))
- return blk_queue_get_max_sectors(q, rq->cmd_flags);
+ if (!q->limits.chunk_sectors || (req_op(rq) == REQ_OP_DISCARD))
+ return blk_queue_get_max_sectors(q, req_op(rq));
return min(blk_max_size_offset(q, blk_rq_pos(rq)),
- blk_queue_get_max_sectors(q, rq->cmd_flags));
+ blk_queue_get_max_sectors(q, req_op(rq)));
}
static inline unsigned int blk_rq_count_bios(struct request *rq)
--
2.7.2
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next prev parent reply other threads:[~2016-06-05 19:33 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-05 19:31 [PATCH 00/45] v8: separate operations from flags in the bio/request structs mchristi
2016-06-05 19:31 ` [PATCH 01/45] block/fs/drivers: remove rw argument from submit_bio mchristi
2016-06-05 20:30 ` kbuild test robot
2016-06-05 21:22 ` kbuild test robot
2016-06-05 21:48 ` kbuild test robot
2016-06-06 6:12 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 02/45] block: add REQ_OP definitions and helpers mchristi
2016-06-06 6:13 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 03/45] fs: have submit_bh users pass in op and flags separately mchristi
2016-06-05 19:31 ` [PATCH 04/45] fs: have ll_rw_block " mchristi
2016-06-05 19:31 ` [PATCH 05/45] block, drivers, cgroup: use op_is_write helper instead of checking for REQ_WRITE mchristi
2016-06-06 6:14 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 06/45] dm: use op_is_write " mchristi
2016-06-06 6:15 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 07/45] bcache: " mchristi
2016-06-06 6:16 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 08/45] block, fs, mm, drivers: use bio set/get op accessors mchristi
2016-06-06 6:20 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 09/45] block discard: use bio set op accessor mchristi
2016-06-06 6:21 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 10/45] direct-io: use bio set/get op accessors mchristi
2016-06-05 19:31 ` [PATCH 11/45] btrfs: have submit_one_bio users use bio " mchristi
2016-06-05 19:31 ` [PATCH 12/45] btrfs: " mchristi
2016-06-05 19:31 ` [PATCH 13/45] btrfs: update __btrfs_map_block for REQ_OP transition mchristi
2016-06-05 19:31 ` [PATCH 14/45] btrfs: use bio fields for op and flags mchristi
2016-06-05 19:31 ` [PATCH 15/45] f2fs: use bio op accessors mchristi
2016-06-05 19:31 ` [PATCH 16/45] gfs2: " mchristi
2016-06-05 19:31 ` [PATCH 17/45] xfs: " mchristi
2016-06-05 19:31 ` [PATCH 18/45] hfsplus: " mchristi
2016-06-05 19:31 ` [PATCH 19/45] mpage: " mchristi
2016-06-05 19:32 ` [PATCH 20/45] nilfs: " mchristi
2016-06-05 19:32 ` [PATCH 21/45] ocfs2: " mchristi
2016-06-05 19:32 ` [PATCH 22/45] pm: " mchristi
2016-06-05 19:32 ` [PATCH 23/45] dm: pass dm stats data dir instead of bi_rw mchristi
2016-06-05 19:32 ` [PATCH 24/45] dm: use bio op accessors mchristi
2016-06-06 6:43 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 25/45] bcache: " mchristi
2016-06-06 6:45 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 26/45] drbd: " mchristi
2016-06-05 19:32 ` [PATCH 27/45] md: " mchristi
2016-06-05 19:32 ` [PATCH 28/45] target: " mchristi
2016-06-06 6:46 ` Hannes Reinecke
2016-06-06 15:40 ` Mike Christie
2016-06-06 15:43 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 29/45] xen: " mchristi
2016-06-05 19:32 ` [PATCH 30/45] block: copy bio op to request op mchristi
2016-06-05 19:32 ` [PATCH 31/45] block: prepare request creation/destruction code to use REQ_OPs mchristi
2016-06-05 19:32 ` [PATCH 32/45] block: prepare mq request creation " mchristi
2016-06-05 19:32 ` [PATCH 33/45] block: prepare elevator " mchristi
2016-06-05 19:32 ` [PATCH 34/45] blkg_rwstat: separate op from flags mchristi
2016-06-05 19:32 ` mchristi [this message]
2016-06-05 19:32 ` [PATCH 36/45] block: convert is_sync helpers to use REQ_OPs mchristi
2016-06-05 19:32 ` [PATCH 37/45] drivers: use req op accessor mchristi
2016-06-06 6:50 ` Hannes Reinecke
2016-08-03 22:33 ` Ross Zwisler
2016-08-03 23:47 ` Mike Christie
2016-08-04 0:30 ` Shaun Tancheff
2016-08-04 5:47 ` Mike Christie
2016-08-04 15:46 ` Christoph Hellwig
2016-08-04 16:32 ` Shaun Tancheff
2016-06-05 19:32 ` [PATCH 38/45] blktrace: use op accessors mchristi
2016-06-05 19:32 ` [PATCH 39/45] ide cd: do not set REQ_WRITE on requests mchristi
2016-06-05 19:32 ` [PATCH 40/45] block: move bio io prio to a new field mchristi
2016-06-06 6:51 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 41/45] block, drivers, fs: shrink bi_rw from long to int mchristi
2016-06-06 6:51 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 42/45] block, fs, drivers: remove REQ_OP compat defs and related code mchristi
2016-06-05 20:37 ` kbuild test robot
2016-06-05 21:43 ` kbuild test robot
2016-06-05 21:49 ` kbuild test robot
2016-06-06 6:53 ` Hannes Reinecke
2016-08-03 16:25 ` Ross Zwisler
2016-08-03 17:28 ` Mike Christie
2016-06-05 19:32 ` [PATCH 43/45] block, drivers: add REQ_OP_FLUSH operation mchristi
2016-06-05 19:32 ` [PATCH 44/45] block: do not use REQ_FLUSH for tracking flush support mchristi
2016-06-05 19:32 ` [PATCH 45/45] block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH mchristi
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