Compaction is the only memory management component to form high order (larger
physically contiguous) memory blocks reliably. The page allocator relies on
compaction heavily and the lack of the feature can lead to unexpected OOM
killer invocations for high order memory requests. You shouldn't disable this
option unless there really is a strong reason for it.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Michal Hrusecky <michal.hrusecky@nic.cz>
Extend the small_flash feature to disable swap, core dumps, and
kernel debug info, and change the squashfs block size to 1024KiB.
Also change squashfs fragment cache to 2 for small_flash to ease memory
usage.
Signed-off-by: Alex Maclean <monkeh@monkeh.net>
Add a new config option to allow to select the default compile
optimization level for the kernel.
Select the optimization for size by default if the small_flash feature is
set. Otherwise "Optimize for performance" is set.
Add the small_flash feature flag to all (sub)targets which had the
optimization for size in their default kernel config.
Remove CC_OPTIMIZE_FOR_* symbols from all kernel configs to apply the new
setting.
Exceptions to the above are:
- lantiq, where the optimization for size is only required for the
xway_legacy subtarget but was set for the whole target
- mediatek, ramips/mt7620 & ramips/mt76x8 where boards should have
plenty of space and an optimization for size doesn't make much sense
- rb532, which has 128MByte flash
Signed-off-by: Mathias Kresin <dev@kresin.me>
In typical OpenWrt setups, there are no other users that have a shell spawned for them by default.
This can be overriden by the kernel.dmesg_output syssctl.
Signed-off-by: Rosen Penev <rosenp@gmail.com>
The D-Link devices with JBOOT bootloader use their own kernel
image header (stag + sch2 headers).
This driver find jImage header and set rootfs start after kernel file.
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Multicast routing support is not needed in most setups, and increases the
size of the kernel considerably (>10K after LZMA). Add a config switch to
allow disabling it.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
The following will enable the TPM kernel module, as well as support for
the atmel i2c TPM driver. Tested and confirmed working on an Aerohive
AP-121
Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
This is a powerful API for parallel crypto from which many other modules
can benefit. It only winds up being turned on on SMP systems, which
means this adds 0 bytes to the kernel on tiny machines, while only
adding a small bit to SMP systems for big performance improvements.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Support splitting WRGG images, found in some D-Link devices (e.g.
DAP-2695).
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: John Crispin <john@phrozen.org>
The nf_reject_* and nf_nat_masquerade_* modules are moved into the
corresponding kmod-nf- packages. Appropriate dependencies are added to the
kmod-nft- packages.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
This adds a configuration options that allows to make filesystem ACL support
the default in the kernel, except for old nfs.
Signed-off-by: Daniel Dickinson <openwrt@daniel.thecshore.com>
In kernel 4.7 there is upstreamed b53 driver using (mostly?) the same
symbols as our b53 does. Change our symbols so both drivers can coexist
in kernel tree.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Jonas Gorski <jonas.gorski@gmail.com>
The buildbots complained about these config options being missing for arm64:
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 48929
This allows splitting EVA images (usually found in fritz devices). The
firmware will be split into a kernel and a separate rootfs partition.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
SVN-Revision: 48262
This adds brnImage (used with the brnboot bootloader) firmware parsing
support. brnboot verifies the integrity of the firmware stored on the
"Code Image" partitions by looking at the 12 byte footer at the very end
of the partition. This footer contains the checksum of the original
brnImage (kernel + rootfs/squashfs) and must not be touched (by our JFFS2
rootfs_data - otherwise the image will not be bootable anymore).
Big thanks to Mathias Kresin for analyzing the brnImage structure and
finding out the information how to keep images valid even when adding a
nested rootfs_data partition.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
SVN-Revision: 48261
Everything except for blkcipher was already built-in, so make blkcipher
built-in as well.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 46820
