From: Hannes Reinecke <hare@suse.de>
To: Mike Christie <mchristi@redhat.com>,
linux-f2fs-devel@lists.sourceforge.net,
linux-ext4@vger.kernel.org, konrad.wilk@oracle.com,
drbd-dev@lists.linbit.com, philipp.reisner@linbit.com,
lars.ellenberg@linbit.com, linux-raid@vger.kernel.org,
dm-devel@redhat.com, linux-fsdevel@vger.kernel.org,
linux-bcache@vger.kernel.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-mtd@lists.infradead.org, target-devel@vger.kernel.org,
linux-btrfs@vger.kernel.org, osd-dev@open-osd.org,
xfs@oss.sgi.com, ocfs2-devel@oss.oracle.com
Subject: Re: [PATCH 28/45] target: use bio op accessors
Date: Mon, 6 Jun 2016 17:43:28 +0200 [thread overview]
Message-ID: <57559A20.10506@suse.de> (raw)
In-Reply-To: <57559973.1020105@redhat.com>
On 06/06/2016 05:40 PM, Mike Christie wrote:
> On 06/06/2016 01:46 AM, Hannes Reinecke wrote:
>> On 06/05/2016 09:32 PM, mchristi@redhat.com wrote:
>>> From: Mike Christie <mchristi@redhat.com>
>>>
>>> Separate the op from the rq_flag_bits and have the target layer
>>> set/get the bio using bio_set_op_attrs/bio_op.
>>>
>>> Signed-off-by: Mike Christie <mchristi@redhat.com>
>>> ---
>>> drivers/target/target_core_iblock.c | 29 ++++++++++++++---------------
>>> drivers/target/target_core_pscsi.c | 2 +-
>>> 2 files changed, 15 insertions(+), 16 deletions(-)
>>>
>>> diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
>>> index c25109c..22af12f 100644
>>> --- a/drivers/target/target_core_iblock.c
>>> +++ b/drivers/target/target_core_iblock.c
>> [ .. ]
>>> @@ -689,18 +690,15 @@ iblock_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
>>> * Force writethrough using WRITE_FUA if a volatile write cache
>>> * is not enabled, or if initiator set the Force Unit Access bit.
>>> */
>>> + op = REQ_OP_WRITE;
>>> if (test_bit(QUEUE_FLAG_FUA, &q->queue_flags)) {
>>> if (cmd->se_cmd_flags & SCF_FUA)
>>> - rw = WRITE_FUA;
>>> + op_flags = WRITE_FUA;
>>> else if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags))
>>> - rw = WRITE_FUA;
>>> - else
>>> - rw = WRITE;
>>> - } else {
>>> - rw = WRITE;
>>> + op_flags = WRITE_FUA;
>>> }
>> Wrong intendation.
>
> It should be ok. That line is for the QUEUE_FLAG_WC test. We end up with:
>
> op = REQ_OP_WRITE;
> if (test_bit(QUEUE_FLAG_FUA, &q->queue_flags)) {
> if (cmd->se_cmd_flags & SCF_FUA)
> op_flags = WRITE_FUA;
> else if (!test_bit(QUEUE_FLAG_WC, &q->queue_flags))
> op_flags = WRITE_FUA;
> }
>
>
>
>
Indeed, you are correct.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@suse.de +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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next prev parent reply other threads:[~2016-06-06 15:43 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 [this message]
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 ` [PATCH 35/45] block: convert merge/insert code to check for REQ_OPs mchristi
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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