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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>		20 years ago
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Kconfig	…
Makefile	…
bootmem.c	[PATCH] Use ALIGN to remove duplicate code	20 years ago
fadvise.c	[PATCH] xip: madvice/fadvice: execute in place	20 years ago
filemap.c	[PATCH] fix for generic_file_write iov problem	20 years ago
filemap.h	…
filemap_xip.c	[PATCH] execute-in-place fixes	20 years ago
fremap.c	…
highmem.c	…
hugetlb.c	[PATCH] Fix hugepage crash on failing mmap()	20 years ago
internal.h	…
madvise.c	[PATCH] madvise() does not always return -EBADF on non-file mapped area	20 years ago
memory.c	[PATCH] Lazy page table copies in fork()	20 years ago
mempolicy.c	[PATCH] sys_set_mempolicy() doesnt check if mode < 0	20 years ago
mempool.c	[PATCH] propagate __nocast annotations	20 years ago
mincore.c	…
mlock.c	…
mmap.c	[PATCH] __vm_enough_memory() signedness fix	20 years ago
mprotect.c	…
mremap.c	[PATCH] fix VmSize and VmData after mremap	20 years ago
msync.c	…
nommu.c	[PATCH] __vm_enough_memory() signedness fix	20 years ago
oom_kill.c	[PATCH] mm: quieten OOM killer noise	20 years ago
page-writeback.c	[PATCH] rename wakeup_bdflush to wakeup_pdflush	20 years ago
page_alloc.c	[PATCH] Fix NUMA node sizing in nr_free_zone_pages	20 years ago
page_io.c	[PATCH] swsusp: kill config_pm_disk	20 years ago
pdflush.c	[PATCH] Cleanup patch for process freezing	20 years ago
prio_tree.c	…
readahead.c	…
rmap.c	…
shmem.c	Fix nasty ncpfs symlink handling bug.	20 years ago
slab.c	[PATCH] propagate __nocast annotations	20 years ago
sparse.c	…
swap.c	…
swap_state.c	…
swapfile.c	…
thrash.c	…
tiny-shmem.c	…
truncate.c	…
vmalloc.c	…
vmscan.c	[PATCH] rename wakeup_bdflush to wakeup_pdflush	20 years ago