kernel-ark/include
Ralf Baechle f8829caee3 [MIPS] Fix aliasing bug in copy_to_user_page / copy_from_user_page
The current implementation uses a sequence of a cacheflush and a copy.
This is racy in case of a multithreaded debuggee and renders GDB
virtually unusable.

Aside this fixes a performance hog rendering access to /proc/cmdline very
slow and resulting in a enough cache stalls for the 34K AP/SP programming
model to make the bare metal code on the non-Linux VPE miss RT deadlines.

The main part of this patch was originally written by Ralf Baechle;
Atushi Nemoto did the the debugging.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-21 23:17:35 +01:00
..
acpi
asm-alpha
asm-arm
asm-arm26
asm-avr32
asm-cris
asm-frv
asm-generic
asm-h8300
asm-i386
asm-ia64
asm-m32r
asm-m68k
asm-m68knommu
asm-mips [MIPS] Fix aliasing bug in copy_to_user_page / copy_from_user_page 2006-10-21 23:17:35 +01:00
asm-parisc
asm-powerpc
asm-ppc
asm-s390
asm-sh
asm-sh64
asm-sparc
asm-sparc64
asm-um
asm-v850
asm-x86_64
asm-xtensa
crypto
keys
linux
math-emu
media
mtd
net
pcmcia
rdma
rxrpc
scsi
sound
video
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