[GIT PULL] io_uring changes for 5.4-rc1

[GIT PULL] io_uring changes for 5.4-rc1

[Jens Axboe]

Hi Linus,

Just two things in this pull request:

- Improvement to the io_uring CQ ring wakeup for batched IO (me)

- Fix wrong comparison in poll handling (yangerkun)

I realize the first one is a little late in the game, but it felt
pointless to hold it off until the next release. Went through various
testing and reviews with Pavel and peterz.

Please pull!


  git://git.kernel.dk/linux-block.git tags/for-5.4/io_uring-2019-09-27


----------------------------------------------------------------
Jens Axboe (1):
      io_uring: make CQ ring wakeups be more efficient

yangerkun (1):
      io_uring: compare cached_cq_tail with cq.head in_io_uring_poll

 fs/io_uring.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 57 insertions(+), 11 deletions(-)

-- 
Jens Axboe

Re: [GIT PULL] io_uring changes for 5.4-rc1

[pr-tracker-bot]

The pull request you sent on Fri, 27 Sep 2019 16:58:52 +0200:

> git://git.kernel.dk/linux-block.git tags/for-5.4/io_uring-2019-09-27

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/738f531d877ac2b228b25354dfa4da6e79a2c369

Thank you!

-- 
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https://korg.wiki.kernel.org/userdoc/prtracker

Re: [GIT PULL] io_uring changes for 5.4-rc1

[pr-tracker-bot]

The pull request you sent on Tue, 24 Sep 2019 12:50:27 +0200:

> git://git.kernel.dk/linux-block.git tags/for-5.4/io_uring-2019-09-24

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/b6cb84b4fc580098a5934078e4c8dc39e3925f07

Thank you!

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[GIT PULL] io_uring changes for 5.4-rc1

[Jens Axboe]

Hi Linus,

Also a collection of later fixes and additions, that weren't quite ready
for pushing out with the initial pull request. This pull request
contains:

- Fix potential use-after-free of shadow requests (Jackie)

- Fix potential OOM crash in request allocation (Jackie)

- kmalloc+memcpy -> kmemdup cleanup (Jackie)

- Fix poll crash regression (me)

- Fix SQ thread not being nice and giving up CPU for !PREEMPT (me)

- Add support for timeouts, making it easier to do epoll_wait()
  conversions, for instance (me)

- Ensure io_uring works without f_ops->read_iter() and
  f_ops->write_iter() (me)

Please pull!


  git://git.kernel.dk/linux-block.git tags/for-5.4/io_uring-2019-09-24


----------------------------------------------------------------
Jackie Liu (3):
      io_uring: use kmemdup instead of kmalloc and memcpy
      io_uring: fix use-after-free of shadow_req
      io_uring: fix potential crash issue due to io_get_req failure

Jens Axboe (4):
      io_uring: ensure poll commands clear ->sqe
      io_uring: use cond_resched() in sqthread
      io_uring: IORING_OP_TIMEOUT support
      io_uring: correctly handle non ->{read,write}_iter() file_operations

 fs/io_uring.c                 | 241 +++++++++++++++++++++++++++++++++++++-----
 include/uapi/linux/io_uring.h |   2 +
 2 files changed, 219 insertions(+), 24 deletions(-)

-- 
Jens Axboe