[Qemu-devel] [PATCH 0/4] block: Fix qiov sizes

[Kevin Wolf]

Some callers use larger qiovs than nb_sectors for their read requests. This is
bad because raw-posix uses nb_sectors to allocate a bounce buffer and then
copies the whole iov over.

This series fixes some more cases (mirroring was already fixed earlier this
week) and adds assertions to catch any other offenders.

Kevin Wolf (4):
  block: Make qiov match the request size until EOF
  qcow2: Make qiov match request size until backing file EOF
  qed: Make qiov match request size until backing file EOF
  block: Assert qiov length matches request length

 block.c           | 13 ++++++++++++-
 block/qcow2.c     | 11 ++++++++++-
 block/qed.c       | 26 +++++++++++++++++++++++---
 block/qed.h       |  1 +
 block/raw-posix.c | 15 +++++++++++----
 5 files changed, 57 insertions(+), 9 deletions(-)

-- 
1.8.3.1