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 [PATCH] x86-64: Speed up dwarf2 unwinder 2006-10-21 18:37:01 +02:00
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 [SPARC]: Clean up asm-sparc/elf.h pollution in userspace. 2006-10-20 00:29:33 -07:00
asm-sparc64
asm-um [PATCH] uml: remove some leftover PPC code 2006-10-20 10:26:36 -07:00
asm-v850
asm-x86_64 [PATCH] x86-64: Revert timer routing behaviour back to 2.6.16 state 2006-10-21 18:37:03 +02:00
asm-xtensa
crypto
keys
linux Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2006-10-21 13:41:41 -07:00
math-emu
media
mtd
net Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes 2006-10-21 14:21:11 -04:00
pcmcia
rdma
rxrpc
scsi
sound
video
Kbuild