[PATCH 0/3] request_alignment vs file size

[Vladimir Sementsov-Ogievskiy]

Hi.

This is a continuation for thread
 "request_alignment vs file size, how to fix crash?"
 <address@hidden>
 https://lists.gnu.org/archive/html/qemu-devel/2020-01/msg07276.html

Generic block-layer assumes that file size is aligned to
request_alignment, and may crash otherwise (see patch 03 for simple
reproducer).

So, let's at least check this thing on generic driver open,
and fix file-posix to consider file-size, when it wants to fallback to
large request_alignment.

Vladimir Sementsov-Ogievskiy (3):
  block/file-posix: add raw_getlength_fd
  block/file-posix: consider file size when fallback to max_align
  block: fail on open when file size is unaligned to request_alignment

 block.c            |  7 ++++++
 block/file-posix.c | 60 +++++++++++++++++++++++++++++-----------------
 2 files changed, 45 insertions(+), 22 deletions(-)

-- 
2.21.0