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[Qemu-devel] [PATCH] qcow2: Get the request alignment for encrypted imag
From: |
Alberto Garcia |
Subject: |
[Qemu-devel] [PATCH] qcow2: Get the request alignment for encrypted images from QCryptoBlock |
Date: |
Thu, 11 Oct 2018 13:58:02 +0300 |
This doesn't have any practical effect at the moment because the
values of BDRV_SECTOR_SIZE, QCRYPTO_BLOCK_LUKS_SECTOR_SIZE and
QCRYPTO_BLOCK_QCOW_SECTOR_SIZE are all the same (512 bytes), but
future encryption methods could have different requirements.
Signed-off-by: Alberto Garcia <address@hidden>
---
block/qcow2.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 7277feda13..010a1b3924 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1627,7 +1627,7 @@ static void qcow2_refresh_limits(BlockDriverState *bs,
Error **errp)
if (bs->encrypted) {
/* Encryption works on a sector granularity */
- bs->bl.request_alignment = BDRV_SECTOR_SIZE;
+ bs->bl.request_alignment = qcrypto_block_get_sector_size(s->crypto);
}
bs->bl.pwrite_zeroes_alignment = s->cluster_size;
bs->bl.pdiscard_alignment = s->cluster_size;
--
2.11.0
- [Qemu-devel] [PATCH] qcow2: Get the request alignment for encrypted images from QCryptoBlock,
Alberto Garcia <=