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block: Consolidate static integrity profile properties

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We previously made a complete copy of a device's data integrity profile
even though several of the fields inside the blk_integrity struct are
pointers to fixed template entries in t10-pi.c.

Split the static and per-device portions so that we can reference the
template directly.

Signed-off-by: Martin K. Petersen <[email protected]>
Reported-by: Christoph Hellwig <[email protected]>
Reviewed-by: Sagi Grimberg <[email protected]>
Cc: Dan Williams <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Martin K. Petersen 2015-10-21 13:19:33 -04:00 • committed by Jens Axboe
commit 0f8087ecde
9 changed files with 65 additions and 64 deletions
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8
block/bio-integrity.c
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@ -177,11 +177,11 @@ bool bio_integrity_enabled(struct bio *bio)
if (bi == NULL)
return false;
if (bio_data_dir(bio) == READ && bi->verify_fn != NULL &&
if (bio_data_dir(bio) == READ && bi->profile->verify_fn != NULL &&
(bi->flags & BLK_INTEGRITY_VERIFY))
return true;
if (bio_data_dir(bio) == WRITE && bi->generate_fn != NULL &&
if (bio_data_dir(bio) == WRITE && bi->profile->generate_fn != NULL &&
(bi->flags & BLK_INTEGRITY_GENERATE))
return true;
@ -340,7 +340,7 @@ int bio_integrity_prep(struct bio *bio)
/* Auto-generate integrity metadata if this is a write */
if (bio_data_dir(bio) == WRITE)
bio_integrity_process(bio, bi->generate_fn);
bio_integrity_process(bio, bi->profile->generate_fn);
return 0;
}
@ -361,7 +361,7 @@ static void bio_integrity_verify_fn(struct work_struct *work)
struct bio *bio = bip->bip_bio;
struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev);
bio->bi_error = bio_integrity_process(bio, bi->verify_fn);
bio->bi_error = bio_integrity_process(bio, bi->profile->verify_fn);
/* Restore original bio completion handler */
bio->bi_end_io = bip->bip_end_io;