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[Qemu-devel] [PULL 04/53] block: avoid creating oversized writes in mult
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL 04/53] block: avoid creating oversized writes in multiwrite_merge |
Date: |
Mon, 3 Nov 2014 11:50:07 +0000 |
From: Peter Lieven <address@hidden>
Signed-off-by: Peter Lieven <address@hidden>
Reviewed-by: Ronnie Sahlberg <address@hidden>
Reviewed-by: Max Reitz <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
block.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/block.c b/block.c
index 76fcc1d..4179341 100644
--- a/block.c
+++ b/block.c
@@ -4446,6 +4446,11 @@ static int multiwrite_merge(BlockDriverState *bs,
BlockRequest *reqs,
merge = 0;
}
+ if (bs->bl.max_transfer_length && reqs[outidx].nb_sectors +
+ reqs[i].nb_sectors > bs->bl.max_transfer_length) {
+ merge = 0;
+ }
+
if (merge) {
size_t size;
QEMUIOVector *qiov = g_malloc0(sizeof(*qiov));
--
1.9.3
- [Qemu-devel] [PULL 00/53] Block patches, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 02/53] BlockLimits: introduce max_transfer_length, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 01/53] util: introduce MIN_NON_ZERO, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 03/53] block/iscsi: set max_transfer_length, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 04/53] block: avoid creating oversized writes in multiwrite_merge,
Stefan Hajnoczi <=
- [Qemu-devel] [PULL 05/53] block/iscsi: use sector_limits_lun2qemu throughout iscsi_refresh_limits, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 06/53] block/iscsi: check for oversized requests, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 07/53] ahci: Correct PIO/D2H FIS responses, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 08/53] ahci: Update byte count after DMA completion, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 09/53] ahci: Fix SDB FIS Construction, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 10/53] snapshot: Reset err to NULL to avoid double free, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 11/53] iotests: replace fake parallels image with authentic one, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 12/53] iotests: add v2 parallels sample image and simple test for it, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 13/53] block/parallels: fix access to not initialized memory in catalog_bitmap, Stefan Hajnoczi, 2014/11/03
- [Qemu-devel] [PULL 14/53] rbd: Add support for bdrv_invalidate_cache, Stefan Hajnoczi, 2014/11/03