The default value for CONFIG_RCU_CPU_STALL_TIMEOUT was changed from 60
seconds to 21 seconds in 2012 in the upstream kernel. Some targets
already use 21 seconds.
This patch changes the default value in the generic configuration to 21
seconds and removes the target specific configuration options.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Rui Salvaterra <rsalvaterra@gmail.com>
CONFIG_RCU_{NEED_SEGCBLIST,STALL_COMMON} are set basically everywhere. Move them
to the generic kconfigs. And resort the generic kconfigs while at it.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Based on the existing documentation [1][2], I dare anyone to demonstrate that
we need to fine-tune these RCU parameters. The (performance) breakage potential
for doing so is immense, so let's just please put down this loaded footgun.
Disable CONFIG_RCU_EXPERT and its dependent symbols. Additionally, remove the
CONFIG_RCU_EXPERT symbol from the target kconfigs which contain it.
[1] https://www.kernel.org/doc/Documentation/RCU/Design/Data-Structures/Data-Structures.html
[2] https://lwn.net/Articles/777214/
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Recent filtering rules alow to trim the kernel configuration in size, do
that to reduce the diff between current config and upcoming one.
Signed-off-by: Tomasz Maciej Nowak <tmn505@gmail.com>
The CONFIG_USERIO option is unset in multiple target configurations. On
the sunxi target it is activated. Move the kernel configuration option
to the generic kernel configuration.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Instead of deactivating this in every target config, deactivate it once
in the generic kernel config. I was asked for this config option in a
x86 64 build in OpenWrt 21.02.
Fixes: 87046e87e2 ("kernel: add missing kernel config symbol")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
The vDSO is used to accelerate some syscalls. It should work fine wherever it's
available, so enable it globally for all targets.
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Similar to how it was already done for other filesystems' *_FS_XATTR
kernel config symbols, also move CONFIG_F2FS_FS_XATTR=y and
CONFIG_F2FS_STAT_FS=y to target/linux/generic.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Extended attributes are required for overlayfs and have hence been long
ago enabled for jffs2, but should be enabled unconditionally for all
other filesystems which may potentially serve as overlayfs' upper
directory. Previously it was inconsistently added in multiple targets.
Add symbols to generic kernel config and remove all *_XATTR symbols
from target configs.
Signed-off-by: Paul Spooren <mail@aparcar.org>
[keep things as they are for squashfs, improve commit message]
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit also disables Trusted Foundations firmware support as this
feature won't be used by any device.
Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
[fix merge conflict in tegra/Makefile]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
