[PULL for-6.0 0/6] Block patches

[Stefan Hajnoczi]

The following changes since commit 6d40ce00c1166c317e298ad82ecf10e650c4f87d:

  Update version for v6.0.0-rc1 release (2021-03-30 18:19:07 +0100)

are available in the Git repository at:

  https://gitlab.com/stefanha/qemu.git tags/block-pull-request

for you to fetch changes up to b6489ac06695e257ea0a9841364577e247fdee30:

  test-coroutine: Add rwlock downgrade test (2021-03-31 10:44:21 +0100)

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Pull request

A fix for VDI image files and more generally for CoRwlock.

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David Edmondson (4):
  block/vdi: When writing new bmap entry fails, don't leak the buffer
  block/vdi: Don't assume that blocks are larger than VdiHeader
  coroutine-lock: Store the coroutine in the CoWaitRecord only once
  test-coroutine: Add rwlock downgrade test

Paolo Bonzini (2):
  coroutine-lock: Reimplement CoRwlock to fix downgrade bug
  test-coroutine: Add rwlock upgrade test

 include/qemu/coroutine.h    |  17 ++--
 block/vdi.c                 |  11 ++-
 tests/unit/test-coroutine.c | 161 +++++++++++++++++++++++++++++++++++
 util/qemu-coroutine-lock.c  | 165 +++++++++++++++++++++++-------------
 4 files changed, 282 insertions(+), 72 deletions(-)

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2.30.2