[Qemu-devel] [PATCHv2 0/4] introduce max_transfer_length

[Peter Lieven]

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.

Discussed reporting of this maximum in the SCSI Disk Inquiry Emulation 
of the Block Limits VPD is currently not added as we do not import any
of the other limits there. This has to be addresses in a seperate series.

v1->v2: do not throw errors but generate trace events in Patch 2 [Paolo]

Peter Lieven (4):
  BlockLimits: introduce max_transfer_length
  block: immediately cancel oversized read/write requests
  block/iscsi: set max_transfer_length
  block: avoid creating oversized writes in multiwrite_merge

 block.c                   |   23 +++++++++++++++++++++++
 block/iscsi.c             |   12 ++++++++++--
 include/block/block_int.h |    3 +++
 trace-events              |    2 ++
 4 files changed, 38 insertions(+), 2 deletions(-)

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1.7.9.5