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[Qemu-devel] [PATCHv3 10/20] iscsi: set limits in BlockDriverState
From: |
Peter Lieven |
Subject: |
[Qemu-devel] [PATCHv3 10/20] iscsi: set limits in BlockDriverState |
Date: |
Tue, 24 Sep 2013 15:35:04 +0200 |
Signed-off-by: Peter Lieven <address@hidden>
---
block/iscsi.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/block/iscsi.c b/block/iscsi.c
index ce8823d..90dc7c2 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1367,6 +1367,20 @@ static int iscsi_open(BlockDriverState *bs, QDict
*options, int flags,
sizeof(struct scsi_inquiry_block_limits));
scsi_free_scsi_task(task);
task = NULL;
+
+ if (iscsilun->bl.max_unmap < 0xffffffff) {
+ bs->bl.max_discard = sector_lun2qemu(iscsilun->bl.max_unmap,
+ iscsilun);
+ }
+ bs->bl.discard_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
+ iscsilun);
+
+ if (iscsilun->bl.max_ws_len < 0xffffffff) {
+ bs->bl.max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
+ iscsilun);
+ }
+ bs->bl.write_zeroes_alignment =
sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
+ iscsilun);
}
#if defined(LIBISCSI_FEATURE_NOP_COUNTER)
--
1.7.9.5
- [Qemu-devel] [PATCHv3 01/20] block: make BdrvRequestFlags public, (continued)
- [Qemu-devel] [PATCHv3 01/20] block: make BdrvRequestFlags public, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 02/20] block: add flags to bdrv_*_write_zeroes, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 03/20] block: introduce BDRV_REQ_MAY_UNMAP request flag, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 05/20] block/raw: add bdrv_has_discard_zeroes and bdrv_has_discard_write_zeroes, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 06/20] block: add BlockLimits structure to BlockDriverState, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 07/20] block: honour BlockLimits in bdrv_co_do_write_zeroes, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 08/20] block: honour BlockLimits in bdrv_co_discard, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 11/20] iscsi: add bdrv_has_discard_zeroes and bdrv_has_discard_write_zeroes, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 13/20] block: introduce bdrv_zeroize, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 12/20] iscsi: add bdrv_co_write_zeroes, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 10/20] iscsi: set limits in BlockDriverState,
Peter Lieven <=
- [Qemu-devel] [PATCHv3 14/20] block/get_block_status: set *pnum = 0 on error, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 09/20] iscsi: simplify iscsi_co_discard, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 16/20] block/get_block_status: avoid redundant callouts on raw devices, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 18/20] qemu-img: add support for fully allocated images, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 20/20] block/raw: copy BlockLimits on raw_open, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 15/20] block/get_block_status: avoid segfault if there is no backing_hd, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 17/20] block/get_block_status: fix BDRV_BLOCK_ZERO for unallocated blocks, Peter Lieven, 2013/09/24
- [Qemu-devel] [PATCHv3 19/20] qemu-img: conditionally zero out target on convert, Peter Lieven, 2013/09/24