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[Qemu-devel] [PATCHv2 10/20] iscsi: set limits in BlockDriverState
From: |
Peter Lieven |
Subject: |
[Qemu-devel] [PATCHv2 10/20] iscsi: set limits in BlockDriverState |
Date: |
Tue, 17 Sep 2013 15:48:46 +0200 |
Signed-off-by: Peter Lieven <address@hidden>
---
block/iscsi.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/block/iscsi.c b/block/iscsi.c
index aabcddb..21b1ecf 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1362,6 +1362,16 @@ 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->max_discard = sector_lun2qemu(iscsilun->bl.max_unmap,
iscsilun);
+ }
+ bs->discard_alignment = sector_lun2qemu(iscsilun->bl.opt_unmap_gran,
iscsilun);
+
+ if (iscsilun->bl.max_ws_len < 0xffffffff) {
+ bs->max_write_zeroes = sector_lun2qemu(iscsilun->bl.max_ws_len,
iscsilun);
+ }
+ bs->write_zeroes_alignment =
sector_lun2qemu(iscsilun->bl.opt_unmap_gran, iscsilun);
}
#if defined(LIBISCSI_FEATURE_NOP_COUNTER)
--
1.7.9.5
- [Qemu-devel] [PATCHv2 02/20] block: add flags to bdrv_*_write_zeroes, (continued)
- [Qemu-devel] [PATCHv2 02/20] block: add flags to bdrv_*_write_zeroes, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 03/20] block: introduce BDRV_REQ_MAY_UNMAP request flag, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 04/20] block: introduce bdrv_has_discard_zeroes and bdrv_has_discard_write_zeroes, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 06/20] block: add discard and write_zeroes limits and alignment to BlockDriverState, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 08/20] block: honour alignment and limit in bdrv_co_discard, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 10/20] iscsi: set limits in BlockDriverState,
Peter Lieven <=
- [Qemu-devel] [PATCHv2 09/20] iscsi: simplify iscsi_co_discard, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 05/20] block/raw: add bdrv_has_discard_zeroes and bdrv_has_discard_write_zeroes, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 11/20] iscsi: add bdrv_has_discard_zeroes and bdrv_has_discard_write_zeroes, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 12/20] iscsi: add bdrv_co_write_zeroes, Peter Lieven, 2013/09/17
- [Qemu-devel] [PATCHv2 07/20] block: honour alignment and limit in bdrv_co_do_write_zeroes, Peter Lieven, 2013/09/17