From: malahal@us.ibm.com
To: linux-scsi@vger.kernel.org
Subject: Re: [PATCH 05 of 16] Block layer data integrity
Date: Tue, 6 May 2008 13:29:09 -0700 [thread overview]
Message-ID: <20080506202909.GA25904@us.ibm.com> (raw)
In-Reply-To: <26ccaf2ccdc5548c4c9f.1209165127@sermon.lab.mkp.net>
Martin K. Petersen [martin.petersen@oracle.com] wrote:
> */
> blk_partition_remap(bio);
>
> + if (bio_integrity_enabled(bio) && bio_integrity_prep(bio))
> + goto end_io;
> +
> if (old_sector != -1)
> blk_add_trace_remap(q, bio, old_dev, bio->bi_sector,
> old_sector);
It is expected that the bio's data should NOT be changed until this I/O
is sent out to the HBA for WRITES. How do you ensure that applications
or file systems don't modify the data of a bio that is in progress?
--Malahal.
next prev parent reply other threads:[~2008-05-06 20:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-25 23:12 [PATCH 00 of 16] Block/SCSI Data Integrity Support Martin K. Petersen
2008-04-25 23:12 ` [PATCH 01 of 16] Add support for the T10 Data Integrity Field CRC Martin K. Petersen
2008-04-25 23:12 ` [PATCH 02 of 16] Globalize bio_set and bio_vec_slab Martin K. Petersen
2008-04-25 23:12 ` [PATCH 03 of 16] Find bio sector offset given idx and offset Martin K. Petersen
2008-04-25 23:12 ` [PATCH 04 of 16] Block layer data integrity Martin K. Petersen
2008-04-25 23:12 ` [PATCH 05 " Martin K. Petersen
2008-05-06 20:29 ` malahal [this message]
2008-05-07 1:56 ` Martin K. Petersen
2008-05-07 2:50 ` malahal
2008-05-07 20:22 ` Martin K. Petersen
2008-04-25 23:12 ` [PATCH 06 of 16] Detect devices with protection information turned on in INQUIRY Martin K. Petersen
2008-04-25 23:12 ` [PATCH 07 of 16] Rename scsi_bidi_sdb_cache Martin K. Petersen
2008-04-25 23:12 ` [PATCH 08 of 16] SCSI protection information scatterlist handling Martin K. Petersen
2008-04-25 23:12 ` [PATCH 09 of 16] Support for the SBC Data Integrity Field format Martin K. Petersen
2008-04-25 23:12 ` [PATCH 10 of 16] Allow sd_print_sense_hdr to be called outside of sd.c Martin K. Petersen
2008-04-25 23:12 ` [PATCH 11 of 16] Move scsi_disk() accessor function to sd.h Martin K. Petersen
2008-04-26 6:23 ` Christoph Hellwig
2008-04-26 13:01 ` Martin K. Petersen
2008-04-25 23:12 ` [PATCH 12 of 16] SCSI host driver DIF helpers Martin K. Petersen
2008-04-25 23:12 ` [PATCH 13 of 16] Support for SCSI disk (SBC) Data Integrity Field Martin K. Petersen
2008-04-25 23:12 ` [PATCH 14 of 16] Implement support for DIF in SCSI debug driver Martin K. Petersen
2008-04-25 23:12 ` [PATCH 15 of 16] Add support for data integrity to DM Martin K. Petersen
2008-04-25 23:12 ` [PATCH 16 of 16] Add support for data integrity to MD Martin K. Petersen
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