Jens Axboe 221c5eb233 io_uring: add support for IORING_OP_POLL ... This is basically a direct port of bfe4037e72, which implements a one-shot poll command through aio. Description below is based on that commit as well. However, instead of adding a POLL command and relying on io_cancel(2) to remove it, we mimic the epoll(2) interface of having a command to add a poll notification, IORING_OP_POLL_ADD, and one to remove it again, IORING_OP_POLL_REMOVE. To poll for a file descriptor the application should submit an sqe of type IORING_OP_POLL. It will poll the fd for the events specified in the poll_events field. Unlike poll or epoll without EPOLLONESHOT this interface always works in one shot mode, that is once the sqe is completed, it will have to be resubmitted. Reviewed-by: Hannes Reinecke <hare@suse.com> Based-on-code-from: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2019-03-06 13:00:12 -07:00
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acpi
asm-generic	Merge branch 'akpm' (patches from Andrew)	2019-01-05 09:16:18 -08:00
clocksource
crypto
drm	Merge tag 'drm-intel-fixes-2019-01-11' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes	2019-01-11 10:26:21 +01:00
dt-bindings	ARM: SoC fixes for linux-5.0	2019-02-08 16:23:41 -08:00
keys
kvm
linux	io_uring: add support for pre-mapped user IO buffers	2019-02-28 08:24:23 -07:00
math-emu
media
memory
misc
net	net: split out functions related to registering inflight socket files	2019-02-28 08:24:23 -07:00
pcmcia
ras
rdma	RDMA/device: Expose ib_device_try_get(()	2019-01-21 14:33:08 -07:00
scsi
soc	ARM: SoC driver updates	2018-12-31 17:32:35 -08:00
sound	ALSA: compress: Fix stop handling on compressed capture streams	2019-02-05 22:01:41 +01:00
target
trace	afs: Fix race in async call refcounting	2019-01-17 15:17:28 +00:00
uapi	io_uring: add support for IORING_OP_POLL	2019-03-06 13:00:12 -07:00
video
xen	arm64/xen: fix xen-swiotlb cache flushing	2019-01-23 22:14:56 +01:00