From c8b3b998e2bb61e511591f126be9d362d80d705d Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Thu, 23 Jun 2016 16:37:14 -0600
Subject: [PATCH] iscsi: Set request_alignment during .bdrv_refresh_limits()
We want to eventually stick request_alignment alongside other
BlockLimits, but first, we must ensure it is populated at the
same time as all other limits, rather than being a special case
that is set only when a block is first opened.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
block/iscsi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/iscsi.c b/block/iscsi.c
index c5dedb3407..721afb7a74 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1589,7 +1589,6 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags,
goto out;
}
bs->total_sectors = sector_lun2qemu(iscsilun->num_blocks, iscsilun);
- bs->request_alignment = iscsilun->block_size;
/* We don't have any emulation for devices other than disks and CD-ROMs, so
* this must be sg ioctl compatible. We force it to be sg, otherwise qemu
@@ -1711,6 +1710,8 @@ static void iscsi_refresh_limits(BlockDriverState *bs, Error **errp)
IscsiLun *iscsilun = bs->opaque;
uint32_t max_xfer_len = iscsilun->use_16_for_rw ? 0xffffffff : 0xffff;
+ bs->request_alignment = iscsilun->block_size;
+
if (iscsilun->bl.max_xfer_len) {
max_xfer_len = MIN(max_xfer_len, iscsilun->bl.max_xfer_len);
}