kernel/Documentation/block/data-integrity.txt, branch linux-5.1.y

bio-integrity: fold bio_integrity_enabled to bio_integrity_prep

2017-07-03T22:56:24Z

Currently all integrity prep hooks are open-coded, and if prepare fails we ignore it's code and fail bio with EIO. Let's return real error to upper layer, so later caller may react accordingly. In fact no one want to use bio_integrity_prep() w/o bio_integrity_enabled, so it is reasonable to fold it in to one function. Signed-off-by: Dmitry Monakhov Reviewed-by: Martin K. Petersen [hch: merged with the latest block tree, return bool from bio_integrity_prep] Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe

block: Remove integrity tagging functions

2014-09-27T15:14:50Z

None of the filesystems appear interested in using the integrity tagging feature. Potentially because very few storage devices actually permit using the application tag space. Remove the tagging functions. Signed-off-by: Martin K. Petersen Reviewed-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Signed-off-by: Jens Axboe

block: Replace bi_integrity with bi_special

2014-09-27T15:14:46Z

For commands like REQ_COPY we need a way to pass extra information along with each bio. Like integrity metadata this information must be available at the bottom of the stack so bi_private does not suffice. Rename the existing bi_integrity field to bi_special and make it a union so we can have different bio extensions for each class of command. We previously used bi_integrity != NULL as a way to identify whether a bio had integrity metadata or not. Introduce a REQ_INTEGRITY to be the indicator now that bi_special can contain different things. In addition, bio_integrity(bio) will now return a pointer to the integrity payload (when applicable). Signed-off-by: Martin K. Petersen Reviewed-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Signed-off-by: Jens Axboe

block: Get rid of bdev_integrity_enabled()

2014-09-27T15:14:44Z

bdev_integrity_enabled() is only used by bio_integrity_enabled(). Combine these two functions. Signed-off-by: Martin K. Petersen Reviewed-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Signed-off-by: Jens Axboe

Trivial typo fixes in Documentation/block/data-integrity.txt.

2009-07-01T08:56:25Z

Signed-off-by: Andre Noll Acked-by: Martin K. Petersen Signed-off-by: Jens Axboe

Documentation/block/data-integrity.txt: Fix section numbers

2008-10-16T17:51:30Z

Signed-off-by: Alberto Bertogli Signed-off-by: Jonathan Corbet

block: Data integrity infrastructure documentation

2008-07-03T11:21:13Z

Signed-off-by: Martin K. Petersen Signed-off-by: Jens Axboe