linux/include
Jens Axboe 66f4af93da io_uring: add support for probing opcodes
The application currently has no way of knowing if a given opcode is
supported or not without having to try and issue one and see if we get
-EINVAL or not. And even this approach is fraught with peril, as maybe
we're getting -EINVAL due to some fields being missing, or maybe it's
just not that easy to issue that particular command without doing some
other leg work in terms of setup first.

This adds IORING_REGISTER_PROBE, which fills in a structure with info
on what it supported or not. This will work even with sparse opcode
fields, which may happen in the future or even today if someone
backports specific features to older kernels.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-01-20 17:04:06 -07:00
..
acpi Merge branches 'acpi-utils', 'acpi-platform', 'acpi-video' and 'acpi-doc' 2019-11-26 10:30:49 +01:00
asm-generic asm-generic/nds32: don't redefine cacheflush primitives 2019-12-30 11:18:43 +01:00
clocksource x86/hyperv: Initialize clockevents earlier in CPU onlining 2019-11-15 10:33:49 +01:00
crypto crypto: ablkcipher - remove deprecated and unused ablkcipher support 2019-11-17 09:02:49 +08:00
drm drm/dp_mst: Have DP_Tx send one msg at a time 2020-01-15 17:01:21 -05:00
dt-bindings dt-bindings: reset: meson8b: fix duplicate reset IDs 2019-12-09 15:21:20 -08:00
keys powerpc updates for 5.5 2019-11-30 14:35:43 -08:00
kunit
kvm Merge remote-tracking branch 'kvmarm/misc-5.5' into kvmarm/next 2019-11-08 11:27:29 +00:00
linux pcpu_ref: add percpu_ref_tryget_many() 2020-01-20 17:04:02 -07:00
math-emu
media drm main pull for 5.5-rc1 2019-11-27 17:45:48 -08:00
misc
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2020-01-16 10:04:40 +01:00
pcmcia
ras
rdma IB/core: Introduce rdma_user_mmap_entry_insert_range() API 2019-12-12 16:55:36 -05:00
scsi scsi: target: iscsi: Wait for all commands to finish before freeing a session 2019-11-19 21:37:35 -05:00
soc riscv: move sifive_l2_cache.h to include/soc 2020-01-12 10:12:44 -08:00
sound ASoC: Fixes for v5.5 2019-12-17 14:18:32 +01:00
target
trace io_uring: add opcode to issue trace event 2020-01-20 17:04:06 -07:00
uapi io_uring: add support for probing opcodes 2020-01-20 17:04:06 -07:00
vdso
video
xen xen/interface: re-define FRONT/BACK_RING_ATTACH() 2019-12-20 13:44:42 +01:00