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authorGreg Ungerer <gerg@uclinux.org>2011-02-03 12:58:39 +0100
committerGreg Ungerer <gerg@uclinux.org>2011-02-16 00:43:16 +0100
commit982cd252ca0b63c11fe398c09c6f2b41217c78c0 (patch)
treefac6b90f443fdb1654c58ae86b1921f3e2a33aa3 /mm
parentm68k: remove arch specific non-optimized memcmp() (diff)
downloadlinux-982cd252ca0b63c11fe398c09c6f2b41217c78c0.tar.xz
linux-982cd252ca0b63c11fe398c09c6f2b41217c78c0.zip
m68knommu: add optimize memmove() function
Add an m68k/coldfire optimized memmove() function for the m68knommu arch. This is the same function as used by m68k. Simple speed tests show this is faster once buffers are larger than 4 bytes, and significantly faster on much larger buffers (4 times faster above about 100 bytes). This also goes part of the way to fixing a regression caused by commit ea61bc461d09e8d331a307916530aaae808c72a2 ("m68k/m68knommu: merge MMU and non-MMU string.h"), which breaks non-coldfire non-mmu builds (which is the 68x328 and 68360 families). They currently have no memmove() fucntion defined, since there was none in the m68knommu/lib functions. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'mm')
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