The patch titled
zoned VM stats: Add NR_ANON
has been added to the -mm tree. Its filename is
swap_prefetch-zoned-vm-stats-add-nr_anon.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: zoned VM stats: Add NR_ANON
From: Christoph Lameter <clameter@xxxxxxx>
The current NR_MAPPED is used by zone reclaim and the dirty load
calculation as the number of mapped pagecache pages. However, that is not
true. NR_MAPPED includes the mapped anonymous pages. This patch clearly
separates those and therefore allows an accurate tracking of the anonymous
pages per zone and the number of mapped pages in the pagecache of each
zone.
We can then more accurately determine when zone reclaim is to be run.
Also it may now be possible to determine the mapped/unmapped ratio in
get_dirty_limit. Isnt the number of anonymous pages irrelevant in that
calculation?
Note that this will change the meaning of the number of mapped pages
reported in /proc/vmstat /proc/meminfo and in the per node statistics.
This may affect user space tools that monitor these counters!
However, NR_MAPPED then works like NR_DIRTY. It is only valid for
pagecache pages.
Signed-off-by: Christoph Lameter <clameter@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
mm/swap_prefetch.c | 1 +
1 file changed, 1 insertion(+)
diff -puN mm/swap_prefetch.c~swap_prefetch-zoned-vm-stats-add-nr_anon mm/swap_prefetch.c
--- devel/mm/swap_prefetch.c~swap_prefetch-zoned-vm-stats-add-nr_anon 2006-06-09 12:03:59.000000000 -0700
+++ devel-akpm/mm/swap_prefetch.c 2006-06-09 12:03:59.000000000 -0700
@@ -388,6 +388,7 @@ static int prefetch_suitable(void)
* dirty, we need to leave some free for pagecache.
*/
limit = global_page_state(NR_MAPPED) +
+ global_page_state(NR_ANON) +
global_page_state(NR_SLAB) +
global_page_state(NR_DIRTY) +
global_page_state(NR_UNSTABLE) +
_
Patches currently in -mm which might be from clameter@xxxxxxx are
page-migration-make-do_swap_page-redo-the-fault.patch
slab-extract-cache_free_alien-from-__cache_free.patch
migration-remove-unnecessary-pageswapcache-checks.patch
page-migration-cleanup-rename-ignrefs-to-migration.patch
page-migration-cleanup-group-functions.patch
page-migration-cleanup-remove-useless-definitions.patch
page-migration-cleanup-drop-nr_refs-in-remove_references.patch
page-migration-cleanup-extract-try_to_unmap-from-migration-functions.patch
page-migration-cleanup-pass-mapping-to-migration-functions.patch
page-migration-cleanup-move-fallback-handling-into-special-function.patch
swapless-pm-add-r-w-migration-entries.patch
swapless-page-migration-rip-out-swap-based-logic.patch
swapless-page-migration-modify-core-logic.patch
more-page-migration-do-not-inc-dec-rss-counters.patch
more-page-migration-use-migration-entries-for-file-pages.patch
page-migration-update-documentation.patch
mm-remove-vm_locked-before-remap_pfn_range-and-drop-vm_shm.patch
page-migration-simplify-migrate_pages.patch
page-migration-simplify-migrate_pages-tweaks.patch
page-migration-handle-freeing-of-pages-in-migrate_pages.patch
page-migration-use-allocator-function-for-migrate_pages.patch
page-migration-support-moving-of-individual-pages.patch
page-migration-detailed-status-for-moving-of-individual-pages.patch
page-migration-support-moving-of-individual-pages-fixes.patch
page-migration-support-moving-of-individual-pages-x86_64-support.patch
page-migration-support-moving-of-individual-pages-x86-support.patch
page-migration-support-a-vma-migration-function.patch
allow-migration-of-mlocked-pages.patch
zoned-vm-counters-per-zone-counter-functionality.patch
zoned-vm-counters-per-zone-counter-functionality-tidy.patch
zoned-vm-counters-include-per-zone-counters-in-proc-vmstat.patch
zoned-vm-counters-conversion-of-nr_mapped-to-per-zone-counter.patch
zoned-vm-counters-conversion-of-nr_pagecache-to-per-zone-counter.patch
zoned-vm-counters-conversion-of-nr_pagecache-to-per-zone-counter-fix.patch
zoned-vm-counters-use-per-zone-counters-to-remove-zone_reclaim_interval.patch
zoned-vm-counters-add-per-zone-counters-to-zone-node-and-global-vm-statistics.patch
zoned-vm-counters-conversion-of-nr_slab-to-per-zone-counter.patch
zoned-vm-counters-conversion-of-nr_pagetable-to-per-zone-counter.patch
zoned-vm-counters-conversion-of-nr_dirty-to-per-zone-counter.patch
zoned-vm-counters-conversion-of-nr_writeback-to-per-zone-counter.patch
zoned-vm-counters-conversion-of-nr_unstable-to-per-zone-counter.patch
zoned-vm-counters-remove-unused-get_page_stat-functions.patch
zoned-vm-counters-conversion-of-nr_bounce-to-per-zone-counter.patch
zoned-vm-counters-remove-useless-writeback-structure.patch
zoned-vm-stats-remove-nr_mapped-from-zone-reclaim.patch
zoned-vm-stats-add-nr_anon.patch
cpuset-remove-extra-cpuset_zone_allowed-check-in-__alloc_pages.patch
swap_prefetch-conversion-of-nr_mapped-to-per-zone-counter.patch
swap_prefetch-conversion-of-nr_slab-to-per-zone-counter.patch
swap_prefetch-conversion-of-nr_dirty-to-per-zone-counter.patch
swap_prefetch-conversion-of-nr_writeback-to-per-zone-counter.patch
swap_prefetch-conversion-of-nr_unstable-to-per-zone-counter.patch
swap_prefetch-remove-unused-get_page_stat-functions.patch
zoned-vm-stats-nr_slab-is-accurate-fix-comment.patch
swap_prefetch-zoned-vm-stats-add-nr_anon.patch
reiser4-conversion-of-nr_dirty-to-per-zone-counter.patch
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