From: Andy Walsh Date: Mon, 29 Jun 2020 22:52:25 +0000 (+0200) Subject: kernel: add KERNEL_IO_URING option X-Git-Tag: v21.02.0-rc1~733 X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9361964a3a330882ddb1ed60eec127821f350014;p=openwrt%2Fstaging%2Fchunkeey.git kernel: add KERNEL_IO_URING option * add KERNEL_IO_URING option NOTES: Adds configurable support for the io_uring interface (CONFIG_IO_URING) via KERNEL_IO_URING option. The kernel only zImage grows by about 5-9KB ? I would like to enable this by default for all 5.4 kernels, so i can use the new io_uring samba-4.12.x vfs module by default. The associated liburing was already submitted and merged. The kernel + liburing was tested on ARM/mvebu via samba4 vfs_io_uring module and i have no issues so far. Some extra reads on it and why we should enable it by default, since i expect more packages to use this in the future. https://wiki.samba.org/index.php/Samba_4.12_Features_added/changed#.27io_uring.27_vfs_module https://lwn.net/Articles/810414/ https://kernel.dk/io_uring.pdf https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.6-IO-uring-Tests Signed-off-by: Andy Walsh --- diff --git a/config/Config-kernel.in b/config/Config-kernel.in index 22e2286b8d..c9efed84d3 100644 --- a/config/Config-kernel.in +++ b/config/Config-kernel.in @@ -373,6 +373,11 @@ config KERNEL_AIO bool "Compile the kernel with asynchronous IO support" default y if !SMALL_FLASH +config KERNEL_IO_URING + bool "Compile the kernel with io_uring support" + default y if !SMALL_FLASH + depends on LINUX_5_4 + config KERNEL_FHANDLE bool "Compile the kernel with support for fhandle syscalls" default y if !SMALL_FLASH