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block: only zero non-PI metadata tuples in bio_integrity_prep

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The PI generation helpers already zero the app tag, so relax the zeroing
to non-PI metadata.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20240626045950.189758-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-06-26 06:59:34 +02:00 committed by Jens Axboe
parent f1e46758e8
commit c546d6f438
1 changed files with 4 additions and 4 deletions
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block/bio-integrity.c
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@ -456,11 +456,11 @@ bool bio_integrity_prep(struct bio *bio)
/*
* Zero the memory allocated to not leak uninitialized kernel
* memory to disk. For PI this only affects the app tag, but
* for non-integrity metadata it affects the entire metadata
* buffer.
* memory to disk for non-integrity metadata where nothing else
* initializes the memory.
*/
gfp |= __GFP_ZERO;
if (bi->csum_type == BLK_INTEGRITY_CSUM_NONE)
gfp |= __GFP_ZERO;
}
/* Allocate kernel buffer for protection data */