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[Qemu-devel] [PATCHv5 11/17] iscsi: set limits in BlockDriverState
From: |
Peter Lieven |
Subject: |
[Qemu-devel] [PATCHv5 11/17] iscsi: set limits in BlockDriverState |
Date: |
Sun, 20 Oct 2013 17:43:05 +0200 |
Reviewed-by: Eric Blake <address@hidden>
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 47b9cc9..c0465aa 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] [PATCHv5 00/17] block: logical block provisioning enhancements, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 02/17] block: add flags to bdrv_*_write_zeroes, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 01/17] block: make BdrvRequestFlags public, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 03/17] block: introduce BDRV_REQ_MAY_UNMAP request flag, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 04/17] block: add logical block provisioning info to BlockDriverInfo, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 06/17] block/iscsi: add .bdrv_get_info, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 05/17] block: add wrappers for logical block provisioning information, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 07/17] block: add BlockLimits structure to BlockDriverState, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 09/17] block: honour BlockLimits in bdrv_co_discard, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 11/17] iscsi: set limits in BlockDriverState,
Peter Lieven <=
- [Qemu-devel] [PATCHv5 08/17] block: honour BlockLimits in bdrv_co_do_write_zeroes, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 13/17] block: introduce bdrv_make_zero, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 12/17] iscsi: add bdrv_co_write_zeroes, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 14/17] block/get_block_status: fix BDRV_BLOCK_ZERO for unallocated blocks, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 10/17] iscsi: simplify iscsi_co_discard, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 15/17] qemu-img: add support for fully allocated images, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 16/17] qemu-img: conditionally zero out target on convert, Peter Lieven, 2013/10/20
- [Qemu-devel] [PATCHv5 17/17] block/raw: copy BlockLimits on raw_open, Peter Lieven, 2013/10/20