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authorTony Ambardar <itugrok@yahoo.com>2023-04-24 22:28:44 -0700
committerTony Ambardar <itugrok@yahoo.com>2023-05-03 10:26:17 -0700
commit3d66f551611de37b88182c64efa091298a9e7f2c (patch)
tree9186ba669b95da45e15d7e20f3d1e3f9b1ce742d /config
parent3980dfcd05741bd650d0e3d0938bfd071ffa7824 (diff)
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kernel: improve handling of CONFIG_IO_URING
Kernel setting CONFIG_IO_URING supports high-performance I/O for file access and servers, generally for more performant platforms, and adds ~45 KB to kernel sizes. The need for this on less "beefy" devices is questionable, as is the size cost considering many platforms have kernel size limits which require tricky repartitioning if outgrown. The size cost is also large relative to the ~180 KB bump expected between major OpenWRT kernel releases. No OpenWrt packages have hard dependencies on this; samba4 and mariadb can take advantage if available (+KERNEL_IO_URING:liburing) but otherwise build and work fine. Since CONFIG_IO_URING is already managed via the KERNEL_IO_URING setting in Config-kernel.in (default Y), remove it from those target configs which unconditionally enable it, and update the defaults to enable it conditionally only on more powerful 64-bit x86 and arm devices. It may still be manually enabled as needed for high-performance custom builds. Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
Diffstat (limited to 'config')
-rw-r--r--config/Config-kernel.in3
1 files changed, 2 insertions, 1 deletions
diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index c7b1864235..979a44660d 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -469,7 +469,8 @@ config KERNEL_AIO
config KERNEL_IO_URING
bool "Compile the kernel with io_uring support"
- default y if !SMALL_FLASH
+ depends on !SMALL_FLASH
+ default y if (x86_64 || aarch64)
config KERNEL_FHANDLE
bool "Compile the kernel with support for fhandle syscalls"