Zachary Amsden d6d861e3c9 [PATCH] paravirt: optimize ptep establish for pae ...

The ptep_establish macro is only used on user-level PTEs, for P->P mapping
changes.  Since these always happen under protection of the pagetable lock,
the strong synchronization of a 64-bit cmpxchg is not needed, in fact, not
even a lock prefix needs to be used.  We can simply instead clear the P-bit,
followed by a normal set.  The write ordering is still important to avoid the
possibility of the TLB snooping a partially written PTE and getting a bad
mapping installed.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-10-01 00:39:34 -07:00

..

acpi

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asm-alpha

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-arm

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-arm26

[PATCH] consistently use MAX_ERRNO in __syscall_return

2006-09-27 08:26:18 -07:00

asm-avr32

[PATCH] AVR32 MTD: Static Memory Controller driver

2006-09-26 08:48:54 -07:00

asm-cris

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-frv

[PATCH] ntp: cleanup defines and comments

2006-10-01 00:39:27 -07:00

asm-generic

[PATCH] paravirt: lazy mmu mode hooks.patch

2006-10-01 00:39:33 -07:00

asm-h8300

[PATCH] remove SYSRQ_KEY and related defines from ppc/sh/h8300

2006-10-01 00:39:22 -07:00

asm-i386

[PATCH] paravirt: optimize ptep establish for pae

2006-10-01 00:39:34 -07:00

asm-ia64

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-m32r

[PATCH] ntp: cleanup defines and comments

2006-10-01 00:39:27 -07:00

asm-m68k

[PATCH] consistently use MAX_ERRNO in __syscall_return

2006-09-27 08:26:18 -07:00

asm-m68knommu

[PATCH] consistently use MAX_ERRNO in __syscall_return

2006-09-27 08:26:18 -07:00

asm-mips

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-parisc

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-powerpc

[PATCH] update legacy io handling for pmac

2006-10-01 00:39:23 -07:00

asm-ppc

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-s390

[PATCH] Directed yield: direct yield of spinlocks for s390.

2006-10-01 00:39:22 -07:00

asm-sh

[PATCH] remove SYSRQ_KEY and related defines from ppc/sh/h8300

2006-10-01 00:39:22 -07:00

asm-sh64

[PATCH] ntp: cleanup defines and comments

2006-10-01 00:39:27 -07:00

asm-sparc

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-sparc64

[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locks

2006-10-01 00:39:21 -07:00

asm-um

[PATCH] uml: remove pte_mkexec

2006-09-29 09:18:04 -07:00

asm-v850

[PATCH] consistently use MAX_ERRNO in __syscall_return

2006-09-27 08:26:18 -07:00

asm-x86_64

[PATCH] kill wall_jiffies

2006-10-01 00:39:27 -07:00

asm-xtensa

[PATCH] ntp: cleanup defines and comments

2006-10-01 00:39:27 -07:00

crypto

…

keys

…

linux

[PATCH] Create call_usermodehelper_pipe()

2006-10-01 00:39:33 -07:00

math-emu

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media

Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb

2006-09-30 09:39:15 -07:00

mtd

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net

[PATCH] Add genetlink utilities for payload length calculation

2006-10-01 00:39:29 -07:00

pcmcia

…

rdma

…

rxrpc

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scsi

[PATCH] scsi: device_reprobe() can fail

2006-09-30 19:33:43 -07:00

sound

[PATCH] maximum latency tracking: ALSA support

2006-10-01 00:39:19 -07:00

video

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Kbuild

…