[PATCH for-5.0? 0/9] block/io: safer inc/dec in_flight sections

[Vladimir Sementsov-Ogievskiy]

Hi all!

This is inspired by Kevin's
"block: Fix blk->in_flight during blk_wait_while_drained()" series.

So, like it's now done for block-backends, let's expand
in_flight-protected sections for bdrv_ interfaces, including
coroutine_enter and BDRV_POLL_WHILE loop into these sections.

Vladimir Sementsov-Ogievskiy (9):
  block/io: refactor bdrv_is_allocated_above to run only one coroutine
  block/io: refactor bdrv_co_ioctl: move aio stuff to corresponding
    block
  block/io: move flush and pdiscard stuff down
  block/io: move bdrv_rw_co_entry and friends down
  block/io: expand in_flight inc/dec section: simple cases
  block/io: expand in_flight inc/dec section: block-status
  block/io: add bdrv_do_pwrite_zeroes
  block/io: move bdrv_make_zero under block-status
  block/io: expand in_flight inc/dec section: bdrv_make_zero

 block/io.c | 780 +++++++++++++++++++++++++++++++++++------------------
 1 file changed, 516 insertions(+), 264 deletions(-)

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2.21.0