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[Qemu-devel] [PATCHv6 0/6] introduce max_transfer_length
From: |
Peter Lieven |
Subject: |
[Qemu-devel] [PATCHv6 0/6] introduce max_transfer_length |
Date: |
Mon, 27 Oct 2014 10:18:42 +0100 |
This series adds the basics for introducing a maximum transfer length
to the block layer. Its main purpose is currently avoiding that
a multiwrite_merge exceeds the max_xfer_len of an attached iSCSI LUN.
This is a required bug fix.
Splitting up requests according to the max_transfer_length will follow
in a later series.
v5->v6: - fix parentheses in Patch 1 [Max]
- rename helper function in Patch 3 [Max]
- cap the limits to highest power of 2 fitting in INT_MAX [Max]
- removed full stops in error messages in Patch 6 [Max]
v4->v5: - Added check for (a != 0 instead of !!a) [Max] and some comments [Eric]
- Correctly limited max_transfer_length to INT_MAX in Patch 3 [Max]
- Added Patch 5 and Patch 6.
v3->v4: introduce MIN_NON_ZERO to correctly calculate minimum of 2 limits.
v2->v3: remove Patch 2 completely [Paolo]
v1->v2: do not throw errors but generate trace events in Patch 2 [Paolo]
Peter Lieven (6):
util: introduce MIN_NON_ZERO
BlockLimits: introduce max_transfer_length
block/iscsi: set max_transfer_length
block: avoid creating oversized writes in multiwrite_merge
block/iscsi: use sector_limits_lun2qemu throughout
iscsi_refresh_limits
block/iscsi: check for oversized requests
block.c | 9 +++++++++
block/iscsi.c | 49 ++++++++++++++++++++++++++++++++++-----------
include/block/block_int.h | 3 +++
include/qemu/osdep.h | 6 ++++++
4 files changed, 55 insertions(+), 12 deletions(-)
--
1.7.9.5
- [Qemu-devel] [PATCHv6 0/6] introduce max_transfer_length,
Peter Lieven <=
- [Qemu-devel] [PATCHv6 2/6] BlockLimits: introduce max_transfer_length, Peter Lieven, 2014/10/27
- [Qemu-devel] [PATCHv6 1/6] util: introduce MIN_NON_ZERO, Peter Lieven, 2014/10/27
- [Qemu-devel] [PATCHv6 4/6] block: avoid creating oversized writes in multiwrite_merge, Peter Lieven, 2014/10/27
- [Qemu-devel] [PATCHv6 3/6] block/iscsi: set max_transfer_length, Peter Lieven, 2014/10/27
- [Qemu-devel] [PATCHv6 6/6] block/iscsi: check for oversized requests, Peter Lieven, 2014/10/27
- [Qemu-devel] [PATCHv6 5/6] block/iscsi: use sector_limits_lun2qemu throughout iscsi_refresh_limits, Peter Lieven, 2014/10/27
- Re: [Qemu-devel] [PATCHv6 0/6] introduce max_transfer_length, Stefan Hajnoczi, 2014/10/28