[PATCH v2 0/2] powerpc32: optimisation of csum_partial_copy_generic()

[Christophe Leroy]

This patch optimises csum_partial_copy_generic() by making use of cache
instructions (dcbt/dcbz) just like copy_tofrom_user() does

On a TCP benchmark using socklib on the loopback interface on which checksum
offload and scatter/gather have been deactivated, we get about 20% performance
increase.

v2 is just a new issue with format-patch -M -C, other changes.

Christophe Leroy (2):
  powerpc32: checksum_wrappers_64 becomes checksum_wrappers
  powerpc32: rewrite of csum_partial_copy_generic based of copy_tofrom_user

 arch/powerpc/include/asm/checksum.h                |   9 -
 arch/powerpc/lib/Makefile                          |   3 +-
 arch/powerpc/lib/checksum_32.S                     | 320 ++++++++++++++-------
 ...{checksum_wrappers_64.c => checksum_wrappers.c} |   0
 4 files changed, 210 insertions(+), 122 deletions(-)
 rename arch/powerpc/lib/{checksum_wrappers_64.c => checksum_wrappers.c} (100%)

-- 
2.1.0

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