Andrea Arcangeli 1a44e14908 [PATCH] .text page fault SMP scalability optimization ... We had a problem on ppc64 where with more than 4 threads a large system wouldn't scale well while faulting in the .text (most of the time was spent in the kernel despite it was an userland compute intensive app). The reason is the useless overwrite of the same pte from all cpu. I fixed it this way (verified on an older kernel but the forward port is almost identical). This will benefit all archs not just ppc64. Signed-off-by: Andrea Arcangeli <andrea@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-10-29 21:40:43 -07:00
..
bootmem.c	[PATCH] core remove PageReserved	2005-10-29 21:40:39 -07:00
fadvise.c	[PATCH] xip: madvice/fadvice: execute in place	2005-06-24 00:06:42 -07:00
filemap_xip.c	[PATCH] mm: rmap with inner ptlock	2005-10-29 21:40:41 -07:00
filemap.c	[PATCH] mm: update comments to pte lock	2005-10-29 21:40:42 -07:00
filemap.h	[PATCH] xip: reduce code duplication	2005-06-24 00:06:41 -07:00
fremap.c	[PATCH] mm: ptd_alloc take ptlock	2005-10-29 21:40:40 -07:00
highmem.c	[PATCH] gfp_t: the rest	2005-10-28 08:16:51 -07:00
hugetlb.c	[PATCH] hugetlb: demand fault handler	2005-10-29 21:40:43 -07:00
internal.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
Kconfig	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
madvise.c	[PATCH] core remove PageReserved	2005-10-29 21:40:39 -07:00
Makefile	[PATCH] xip: fs/mm: execute in place	2005-06-24 00:06:41 -07:00
memory.c	[PATCH] .text page fault SMP scalability optimization	2005-10-29 21:40:43 -07:00
mempolicy.c	[PATCH] mm: pte_offset_map_lock loops	2005-10-29 21:40:40 -07:00
mempool.c	[PATCH] gfp_t: mm/* (easy parts)	2005-10-28 08:16:47 -07:00
mincore.c	[PATCH] freepgt: sys_mincore ignore FIRST_USER_PGD_NR	2005-04-19 13:29:20 -07:00
mlock.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
mmap.c	[PATCH] mm: unmap_vmas with inner ptlock	2005-10-29 21:40:41 -07:00
mprotect.c	[PATCH] mm: pte_offset_map_lock loops	2005-10-29 21:40:40 -07:00
mremap.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
msync.c	[PATCH] mm: pte_offset_map_lock loops	2005-10-29 21:40:40 -07:00
nommu.c	[PATCH] mm: follow_page with inner ptlock	2005-10-29 21:40:41 -07:00
oom_kill.c	[PATCH] gfp flags annotations - part 1	2005-10-08 15:00:57 -07:00
page_alloc.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
page_io.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
page-writeback.c	[PATCH] timer initialization cleanup: DEFINE_TIMER	2005-09-09 14:03:48 -07:00
pdflush.c	[PATCH] Cleanup patch for process freezing	2005-06-25 17:10:13 -07:00
prio_tree.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
readahead.c	[PATCH] readahead: reset cache_hit earlier	2005-09-07 16:57:25 -07:00
rmap.c	[PATCH] mm: update comments to pte lock	2005-10-29 21:40:42 -07:00
shmem.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
slab.c	[PATCH] slab: add additional debugging to detect slabs from the wrong node	2005-10-29 21:40:36 -07:00
sparse.c	[PATCH] sparsemem extreme: hotplug preparation	2005-09-05 00:05:38 -07:00
swap_state.c	[PATCH] mm: update comments to pte lock	2005-10-29 21:40:42 -07:00
swap.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
swapfile.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00
thrash.c	[PATCH] swaptoken tuning	2005-10-29 21:40:35 -07:00
tiny-shmem.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
truncate.c	[PATCH] DocBook: fix some descriptions	2005-05-01 08:59:26 -07:00
vmalloc.c	[PATCH] mm: init_mm without ptlock	2005-10-29 21:40:40 -07:00
vmscan.c	[PATCH] mm: split page table lock	2005-10-29 21:40:42 -07:00