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path: root/fs/bio-integrity.c
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* block: Introduce integrity data ownership flagMartin K. Petersen2008-10-091-1/+2
| | | | | | | | | A filesystem might supply its own integrity metadata. Introduce a flag that indicates whether the filesystem or the block layer owns the integrity buffer. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* block: revert part of d7533ad0e132f92e75c1b2eb7c26387b25a583c1Jens Axboe2008-10-091-5/+0
| | | | | | We need bdev_get_integrity() to support the pending md/dm patches. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* block: cleanup some of the integrity stuff in blkdev.hJens Axboe2008-10-091-0/+31
| | | | | | | | Don't put functions that are only used in fs/bio-integrity.c in blkdev.h, it's much cleaner to just keep it in there. Also kill completely unused bdev_get_tag_size() Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* bio-integrity: remove EXPORT_SYMBOL for bio_integrity_init_slab()Yoichi Yuasa2008-07-281-1/+0
| | | | | | | | | | | | | | | | | | I got section mismatch message about bio_integrity_init_slab(). WARNING: fs/built-in.o(__ksymtab+0xb60): Section mismatch in reference from the variable __ksymtab_bio_integrity_init_slab to the function .init.text:bio_integrity_init_slab() The symbol bio_integrity_init_slab is exported and annotated __init Fix this by removing the __init annotation of bio_integrity_init_slab or drop the export. It only call from init_bio(). The EXPORT_SYMBOL() can be removed. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* block: integrity checkpatch cleanupsJens Axboe2008-07-031-9/+20
| | | | | | > 80 char lines and that sort of thing. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* block: Block layer data integrity supportMartin K. Petersen2008-07-031-0/+708
Some block devices support verifying the integrity of requests by way of checksums or other protection information that is submitted along with the I/O. This patch implements support for generating and verifying integrity metadata, as well as correctly merging, splitting and cloning bios and requests that have this extra information attached. See Documentation/block/data-integrity.txt for more information. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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