Nick Piggin d992895ba2 [PATCH] Lazy page table copies in fork() ... Defer copying of ptes until fault time when it is possible to reconstruct the pte from backing store. Idea from Andi Kleen and Nick Piggin. Thanks to input from Rik van Riel and Linus and to Hugh for correcting my blundering. Ray Fucillo <fucillo@intersystems.com> reports: "I applied this latest patch to a 2.6.12 kernel and found that it does resolve the problem. Prior to the patch on this machine, I was seeing about 23ms spent in fork for ever 100MB of shared memory segment. After applying the patch, fork is taking about 1ms regardless of the shared memory size." Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-08-29 17:25:04 -07:00
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bootmem.c	[PATCH] Use ALIGN to remove duplicate code	2005-06-25 16:25:02 -07:00
fadvise.c	[PATCH] xip: madvice/fadvice: execute in place	2005-06-24 00:06:42 -07:00
filemap_xip.c	[PATCH] execute-in-place fixes	2005-07-15 09:54:50 -07:00
filemap.c	[PATCH] fix for generic_file_write iov problem	2005-06-25 16:24:39 -07:00
filemap.h	[PATCH] xip: reduce code duplication	2005-06-24 00:06:41 -07:00
fremap.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
highmem.c	[PATCH] count bounce buffer pages in vmstat	2005-05-01 08:58:37 -07:00
hugetlb.c	[PATCH] Fix hugepage crash on failing mmap()	2005-08-05 12:22:37 -07:00
internal.h	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
Kconfig	[PATCH] sparsemem memory model	2005-06-23 09:45:04 -07:00
madvise.c	[PATCH] madvise() does not always return -EBADF on non-file mapped area	2005-07-27 16:25:54 -07:00
Makefile	[PATCH] xip: fs/mm: execute in place	2005-06-24 00:06:41 -07:00
memory.c	[PATCH] Lazy page table copies in fork()	2005-08-29 17:25:04 -07:00
mempolicy.c	[PATCH] sys_set_mempolicy() doesnt check if mode < 0	2005-08-01 21:38:00 -07:00
mempool.c	[PATCH] propagate __nocast annotations	2005-07-07 18:23:46 -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] __vm_enough_memory() signedness fix	2005-08-04 21:43:14 -07:00
mprotect.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
mremap.c	[PATCH] fix VmSize and VmData after mremap	2005-08-04 13:11:15 -07:00
msync.c	[PATCH] msync: check pte dirty earlier	2005-06-21 18:46:21 -07:00
nommu.c	[PATCH] __vm_enough_memory() signedness fix	2005-08-04 21:43:14 -07:00
oom_kill.c	[PATCH] mm: quieten OOM killer noise	2005-07-07 18:23:36 -07:00
page_alloc.c	[PATCH] Fix NUMA node sizing in nr_free_zone_pages	2005-07-30 10:14:46 -07:00
page_io.c	[PATCH] swsusp: kill config_pm_disk	2005-06-25 16:24:32 -07:00
page-writeback.c	[PATCH] rename wakeup_bdflush to wakeup_pdflush	2005-06-28 21:20:31 -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	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
rmap.c	[PATCH] xip: fs/mm: execute in place	2005-06-24 00:06:41 -07:00
shmem.c	Fix nasty ncpfs symlink handling bug.	2005-08-19 18:02:56 -07:00
slab.c	[PATCH] propagate __nocast annotations	2005-07-07 18:23:46 -07:00
sparse.c	[PATCH] sparsemem hotplug base	2005-06-23 09:45:05 -07:00
swap_state.c	[PATCH] mm: use __GFP_NOMEMALLOC	2005-05-01 08:58:37 -07:00
swap.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -07:00
swapfile.c	[PATCH] can_share_swap_page: use page_mapcount	2005-06-21 18:46:21 -07:00
thrash.c	Linux-2.6.12-rc2	2005-04-16 15:20:36 -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] x86_64: Fixed guard page handling again in iounmap	2005-05-20 15:48:20 -07:00
vmscan.c	[PATCH] rename wakeup_bdflush to wakeup_pdflush	2005-06-28 21:20:31 -07:00