Olof Johansson e63f8f439d [PATCH] ppc64: no prefetch for NULL pointers ... For prefetches of NULL (as when walking a short linked list), PPC64 will in some cases take a performance hit. The hardware needs to do the TLB walk, and said walk will always miss, which means (up to) two L2 misses as penalty. This seems to hurt overall performance, so for NULL pointers skip the prefetch alltogether. Signed-off-by: Olof Johansson <olof@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-04-16 15:24:38 -07:00
..
acpi
asm-alpha
asm-arm	[PATCH] arm: add comment about dma_supported()	2005-04-16 15:23:57 -07:00
asm-arm26
asm-cris
asm-frv
asm-generic
asm-h8300
asm-i386
asm-ia64
asm-m32r
asm-m68k	[PATCH] ppc32: fix compilation error in include/asm-m68k/setup.h	2005-04-16 15:24:27 -07:00
asm-m68knommu
asm-mips
asm-parisc
asm-ppc	[PATCH] ppc64: very basic desktop g5 sound support	2005-04-16 15:24:32 -07:00
asm-ppc64	[PATCH] ppc64: no prefetch for NULL pointers	2005-04-16 15:24:38 -07:00
asm-s390
asm-sh
asm-sh64
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86_64
linux	[PATCH] Fix linux/atalk.h header	2005-04-16 15:24:09 -07:00
math-emu
media
mtd
net
pcmcia
rxrpc
scsi
sound
video