[PATCH v2 0/2] Implement word-at-a-time string functions for ARM

From: Will Deacon
Date: Fri Jun 15 2012 - 12:22:43 EST


Hi all,

This is version 2 of the patches originally posted here:

http://lists.infradead.org/pipermail/linux-arm-kernel/2012-June/103290.html

There are only cosmetic changes from v1:
- Added Nico's reviewed-by tags
- Removed RFC prefix
- Fixed changelog to echo the fact that we may use clz

I'm still interested in any pathname-heavy benchmarks that people may
have to stress the name hashing code. My simple find test does show an
improvement but I don't know how realistic that is.

Cheers,

Will


Will Deacon (2):
ARM: use generic strnlen_user and strncpy_from_user functions
ARM: dcache: select DCACHE_WORD_ACCESS for little-endian ARMv6+ CPUs

arch/arm/Kconfig | 3 +
arch/arm/include/asm/uaccess.h | 27 ++-------
arch/arm/include/asm/word-at-a-time.h | 96 +++++++++++++++++++++++++++++++++
arch/arm/kernel/armksyms.c | 4 --
arch/arm/lib/Makefile | 1 -
arch/arm/lib/strncpy_from_user.S | 43 ---------------
arch/arm/lib/strnlen_user.S | 40 --------------
7 files changed, 105 insertions(+), 109 deletions(-)
create mode 100644 arch/arm/include/asm/word-at-a-time.h
delete mode 100644 arch/arm/lib/strncpy_from_user.S
delete mode 100644 arch/arm/lib/strnlen_user.S

--
1.7.4.1

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