openwrtv3/target/linux/generic
Hauke Mehrtens bf32177a1d kernel: remove full cache flush in fuse_copy_do() for MIPS
This patch was introduced in commit r16412 for the brcm47xx target only
and then moved to generic in commit r32395. It was initially added
because of ticket #5186 and should fix some problems with fuse file
systems and MIPS caches. The commit comment in r32395 says that this a
generic problem in MIPS CPUs, but does not name any specifics about
that. There was a fix added to kernel 2.6.21 in commit commit
7575a49f20 "[MIPS] Implement flush_anon_page()." that should fix this
problem, but that was already available before both commits were done
to OpenWrt.

I just tested fuse with ntfs.3g without this patch on a BCM4704
(BMIPS3300 V0.6) SoC and haven't seen any problems. Someone reported
that removing this patch improves some fuse operations by 5 times on
some modern MIPS cores.
My test was only a simple "dd if=/dev/zero of=/mnt/zero bs=5000" to an
USB stick.

This patch removes the patch to OpenWrt, because I assume that it is
not needed any more and Felix, the orginal author, also thinks so.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2016-06-26 18:22:23 +02:00
..
base-files update the /init file to start /sbin/init 2013-03-13 18:11:13 +00:00
files kernel: rename B53 symbols to avoid upstream kernel conflict 2016-06-20 08:00:14 +02:00
image treewide: replace nbd@openwrt.org with nbd@nbd.name 2016-06-07 08:58:42 +02:00
patches-3.18 kernel: remove full cache flush in fuse_copy_do() for MIPS 2016-06-26 18:22:23 +02:00
patches-4.1 kernel: remove full cache flush in fuse_copy_do() for MIPS 2016-06-26 18:22:23 +02:00
patches-4.4 kernel: remove full cache flush in fuse_copy_do() for MIPS 2016-06-26 18:22:23 +02:00
config-3.18 kernel: rename B53 symbols to avoid upstream kernel conflict 2016-06-20 08:00:14 +02:00
config-4.1 kernel: rename B53 symbols to avoid upstream kernel conflict 2016-06-20 08:00:14 +02:00
config-4.4 kernel: rename B53 symbols to avoid upstream kernel conflict 2016-06-20 08:00:14 +02:00
PATCHES kernel: update PATCHES with a stricter policy 2013-07-09 20:52:07 +00:00