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Zachary Amsden 61e06037e7 [PATCH] x86_64: avoid some atomic operations during address space destruction 
Any architecture that has hardware updated A/D bits that require
synchronization against other processors during PTE operations can benefit
from doing non-atomic PTE updates during address space destruction.
Originally done on i386, now ported to x86_64.

Doing a read/write pair instead of an xchg() operation saves the implicit
lock, which turns out to be a big win on 32-bit (esp w PAE).

Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-05 00:05:48 -07:00
..
acpi /home/lenb/src/to-linus branch 'acpi-2.6.12' 2005-07-29 23:31:17 -04:00
asm-alpha [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-arm [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-arm26 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-cris [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-frv [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-generic [PATCH] x86: ptep_clear optimization 2005-09-05 00:05:48 -07:00
asm-h8300 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-i386 [PATCH] x86: ptep_clear optimization 2005-09-05 00:05:48 -07:00
asm-ia64 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-m32r [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-m68k [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-m68knommu [PATCH] mm: consolidate get_order 2005-09-05 00:05:39 -07:00
asm-mips [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-parisc [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-powerpc [PATCH] Move all the very similar files to asm-powerpc 2005-08-30 13:32:06 +10:00
asm-ppc [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-ppc64 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-s390 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-sh [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-sh64 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-sparc [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-sparc64 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-um [PATCH] mm: correct _PAGE_FILE comment 2005-09-05 00:05:45 -07:00
asm-v850 [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
asm-x86_64 [PATCH] x86_64: avoid some atomic operations during address space destruction 2005-09-05 00:05:48 -07:00
asm-xtensa [PATCH] sab: consolidate kmem_bufctl_t 2005-09-05 00:05:48 -07:00
linux [PATCH] remove hugetlb_clean_stale_pgtable() and fix huge_pte_alloc() 2005-09-05 00:05:46 -07:00
math-emu Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
media [PATCH] V4L: Miscellaneous fixes 2005-08-01 19:13:59 -07:00
mtd [MTD] NAND: Honour autoplacement schemes supplied by the caller 2005-05-23 13:20:45 +02:00
net /spare/repo/netdev-2.6 branch 'master' 2005-09-01 18:02:01 -04:00
pcmcia [PATCH] pcmcia: fix pcmcia-cs compilation 2005-07-12 16:00:59 -07:00
rdma [PATCH] IB: move include files to include/rdma 2005-08-26 20:37:38 -07:00
rxrpc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scsi [SCSI] fix target scanning oops with fc transport class 2005-08-08 17:14:55 -05:00
sound [ALSA] version 1.0.10rc1 2005-08-30 08:48:35 +02:00
video [PATCH] Clean-up and bug fix for tdfxfb framebuffer size detection 2005-05-01 08:59:25 -07:00