[PATCHSET,0/3] io_uring improvements

Message

Jens Axboe March 15, 2019, 2:59 p.m. UTC

This is on top of the just posted "PATCHSET v2 0/7] io_uring fixes"
series.

This re-introduces the ability to NOT have to touch page reference
counts for our fixed buffers. Instead of assuming that's always
safe to do with a BVEC iter, we add an explicit flag for that. This
shifts the iter types a bit, but otherwise shouldn't cause any
changes.

The final patch re-adds the "we hit cache" flag. I left this out of
the initial series due to concerns over informing userspace about
this, with all the mincore etc discussions.

 block/bio.c                   | 43 +++++++++++++++++++----------------
 fs/block_dev.c                | 12 ++++++----
 fs/io_uring.c                 |  9 +++++++-
 fs/iomap.c                    | 12 ++++++----
 include/linux/blk_types.h     |  1 +
 include/linux/uio.h           | 24 +++++++++++++++----
 include/uapi/linux/io_uring.h |  5 ++++
 7 files changed, 71 insertions(+), 35 deletions(-)