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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>
This commit is contained in:
Tony Ambardar 2023-04-24 22:28:44 -07:00
parent 3980dfcd05
commit 3d66f55161
15 changed files with 2 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
config/Config-kernel.in
View File

@ -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"

1
target/linux/airoha/config-5.15
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@ -135,7 +135,6 @@ CONFIG_INITRAMFS_SOURCE=""
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
CONFIG_IOMMU_SUPPORT=y
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/bcm53xx/config-5.10
View File

@ -165,7 +165,6 @@ CONFIG_HW_RANDOM_BCM2835=y
CONFIG_HZ_FIXED=0
CONFIG_HZ_PERIODIC=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/bcm53xx/config-5.15
View File

@ -171,7 +171,6 @@ CONFIG_HW_RANDOM_BCM2835=y
CONFIG_HZ_FIXED=0
CONFIG_HZ_PERIODIC=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/gemini/config-5.10
View File

@ -216,7 +216,6 @@ CONFIG_INPUT_KEYBOARD=y
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
CONFIG_IOMMU_SUPPORT=y
CONFIG_IO_URING=y
CONFIG_IPC_NS=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y

1
target/linux/gemini/config-5.15
View File

@ -217,7 +217,6 @@ CONFIG_INPUT_KEYBOARD=y
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
CONFIG_IOMMU_SUPPORT=y
CONFIG_IO_URING=y
CONFIG_IPC_NS=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y

1
target/linux/imx/config-5.15
View File

@ -233,7 +233,6 @@ CONFIG_IMX_SDMA=y
CONFIG_IMX_THERMAL=y
# CONFIG_IMX_WEIM is not set
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/ipq40xx/config-5.15
View File

@ -210,7 +210,6 @@ CONFIG_INITRAMFS_SOURCE=""
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
CONFIG_IOMMU_SUPPORT=y
CONFIG_IO_URING=y
# CONFIG_IPQ_APSS_PLL is not set
CONFIG_IPQ_GCC_4019=y
# CONFIG_IPQ_GCC_6018 is not set

1
target/linux/mediatek/filogic/config-5.15
View File

@ -186,7 +186,6 @@ CONFIG_I2C_MT65XX=y
CONFIG_ICPLUS_PHY=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/mediatek/mt7623/config-5.15
View File

@ -281,7 +281,6 @@ CONFIG_IOMMU_IO_PGTABLE_ARMV7S=y
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S_SELFTEST is not set
# CONFIG_IOMMU_IO_PGTABLE_LPAE is not set
CONFIG_IOMMU_SUPPORT=y
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/mediatek/mt7629/config-5.15
View File

@ -142,7 +142,6 @@ CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_MTK=y
CONFIG_HZ_FIXED=0
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/rockchip/armv8/config-5.10
View File

@ -287,7 +287,6 @@ CONFIG_IOMMU_IO_PGTABLE_LPAE=y
# CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST is not set
CONFIG_IOMMU_SUPPORT=y
# CONFIG_IO_STRICT_DEVMEM is not set
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/rockchip/armv8/config-5.15
View File

@ -287,7 +287,6 @@ CONFIG_IOMMU_IO_PGTABLE_LPAE=y
# CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST is not set
CONFIG_IOMMU_SUPPORT=y
# CONFIG_IO_STRICT_DEVMEM is not set
CONFIG_IO_URING=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y

1
target/linux/x86/config-5.10
View File

@ -181,7 +181,6 @@ CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_NONE is not set
# CONFIG_IO_DELAY_UDELAY is not set
CONFIG_IO_URING=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_IRQ_FORCED_THREADING=y

1
target/linux/x86/config-5.15
View File

@ -183,7 +183,6 @@ CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_NONE is not set
# CONFIG_IO_DELAY_UDELAY is not set
CONFIG_IO_URING=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_IRQ_FORCED_THREADING=y