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Rik van Riel e8a03feb54 rmap: add exclusively owned pages to the newest anon_vma ... The recent anon_vma fixes cause many anonymous pages to end up in the parent process anon_vma, even when the page is exclusively owned by the current process. Adding exclusively owned anonymous pages to the top anon_vma reduces rmap scanning overhead, especially in workloads with forking servers. This patch adds a parameter to __page_set_anon_rmap that can be used to indicate whether or not the added page is exclusively owned by the current process. Pages added through page_add_new_anon_rmap are exclusively owned by the current process, and can be added to the top anon_vma. Pages added through page_add_anon_rmap can be either shared or exclusively owned, so we do the conservative thing and add it to the oldest anon_vma. A next step would be to add the exclusive parameter to page_add_anon_rmap, to be used from functions where we do know for sure whether a page is exclusively owned. Signed-off-by: Rik van Riel <riel@redhat.com> Reviewed-by: Johannes Weiner <hannes@cmpxchg.org> Lightly-tested-by: Borislav Petkov <bp@alien8.de> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> [ Edited to look nicer - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		15 years ago
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Kconfig	Merge branch 'x86-bootmem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	15 years ago
Kconfig.debug	trivial: improve help text for mm debug config options	16 years ago
Makefile	percpu: don't implicitly include slab.h from percpu.h	15 years ago
backing-dev.c	backing-dev: Handle class_create() failure	15 years ago
bootmem.c	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip	15 years ago
bounce.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
debug-pagealloc.c	generic debug pagealloc	16 years ago
dmapool.c	dmapools: protect page_list walk in show_pools()	16 years ago
fadvise.c	readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM	15 years ago
failslab.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
filemap.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
filemap_xip.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
fremap.c	mm: clean up mm_counter	15 years ago
highmem.c	grammar fix in comment	15 years ago
hugetlb.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
hwpoison-inject.c	HWPOISON: Don't do early filtering if filter is disabled	15 years ago
init-mm.c	mm: consolidate init_mm definition	16 years ago
internal.h	HWPOISON: add an interface to switch off/on all the page filters	15 years ago
kmemcheck.c	kmemcheck: Fix build errors due to missing slab.h	15 years ago
kmemleak-test.c	percpu: clean up percpu variable definitions	16 years ago
kmemleak.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
ksm.c	mm/ksm.c is doing an unneeded _notify in write_protect_page.	15 years ago
maccess.c	maccess,probe_kernel: Allow arch specific override probe_kernel_(read|write)	15 years ago
madvise.c	HWPOISON: Add a madvise() injector for soft page offlining	15 years ago
memcontrol.c	memcg: fix race in file_mapped accounting	15 years ago
memory-failure.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
memory.c	mm: avoid null-pointer deref in sync_mm_rss()	15 years ago
memory_hotplug.c	mm: introduce dump_page() and print symbolic flag names	15 years ago
mempolicy.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
mempool.c	mm: remove broken 'kzalloc' mempool	16 years ago
migrate.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
mincore.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
mlock.c	mm: use rlimit helpers	15 years ago
mm_init.c	mm: mminit_loglevel cannot be __meminitdata anymore	17 years ago
mmap.c	vma_adjust: fix the copying of anon_vma chains	15 years ago
mmu_context.c	exit: fix oops in sync_mm_rss	15 years ago
mmu_notifier.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
mmzone.c	[ARM] Double check memmap is actually valid with a memmap has unexpected holes V2	16 years ago
mprotect.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
mremap.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
msync.c	[CVE-2009-0029] System call wrappers part 13	16 years ago
nommu.c	NOMMU: Fix __get_user_pages() to pin last page on offset buffers	15 years ago
oom_kill.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
page-writeback.c	writeback: remove unused nonblocking and congestion checks	15 years ago
page_alloc.c	mm: introduce dump_page() and print symbolic flag names	15 years ago
page_cgroup.c	memcg: avoid use cmpxchg in swap cgroup maintainance	15 years ago
page_io.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
page_isolation.c	memory hotplug: fix page_zone() calculation in test_pages_isolated()	16 years ago
pagewalk.c	pagemap: fix pfn calculation for hugepage	15 years ago
percpu.c	percpu, module: implement and use is_kernel/module_percpu_address()	15 years ago
percpu_up.c	percpu: don't implicitly include slab.h from percpu.h	15 years ago
prio_tree.c	…
quicklist.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
readahead.c	readahead: fix NULL filp dereference	15 years ago
rmap.c	rmap: add exclusively owned pages to the newest anon_vma	15 years ago
shmem.c	Fix breakage in shmem.c	15 years ago
slab.c	slab: Generify kernel pointer validation	15 years ago
slob.c	slab: remove duplicate kmem_cache_init_late() declarations	16 years ago
slub.c	slub: Fix kmem_ptr_validate() for non-kernel pointers	15 years ago
sparse-vmemmap.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
sparse.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
swap.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
swap_state.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
swapfile.c	memcg: move charges of anonymous swap	15 years ago
thrash.c	mm: pass mm to grab_swap_token	16 years ago
truncate.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago
util.c	slab: Generify kernel pointer validation	15 years ago
vmalloc.c	mm: purge fragmented percpu vmap blocks	15 years ago
vmscan.c	mm: revert "vmscan: get_scan_ratio() cleanup"	15 years ago
vmstat.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	15 years ago