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authorMel Gorman <mgorman@suse.de>2014-01-21 15:49:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-21 16:19:44 -0800
commitaec6a8889a98a0cd58357cd0937a25189908f191 (patch)
tree4c0bd0fa7a3d9e6edc0f863782e1d5807ebefb12 /lib
parentece86e222db48d04bda218a2be70e384518bb08c (diff)
downloadlinux-stericsson-aec6a8889a98a0cd58357cd0937a25189908f191.tar.gz
mm, show_mem: remove SHOW_MEM_FILTER_PAGE_COUNT
Commit 4b59e6c47309 ("mm, show_mem: suppress page counts in non-blockable contexts") introduced SHOW_MEM_FILTER_PAGE_COUNT to suppress PFN walks on large memory machines. Commit c78e93630d15 ("mm: do not walk all of system memory during show_mem") avoided a PFN walk in the generic show_mem helper which removes the requirement for SHOW_MEM_FILTER_PAGE_COUNT in that case. This patch removes PFN walkers from the arch-specific implementations that report on a per-node or per-zone granularity. ARM and unicore32 still do a PFN walk as they report memory usage on each bank which is a much finer granularity where the debugging information may still be of use. As the remaining arches doing PFN walks have relatively small amounts of memory, this patch simply removes SHOW_MEM_FILTER_PAGE_COUNT. [akpm@linux-foundation.org: fix parisc] Signed-off-by: Mel Gorman <mgorman@suse.de> Acked-by: David Rientjes <rientjes@google.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: James Bottomley <jejb@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/show_mem.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/lib/show_mem.c b/lib/show_mem.c
index 5847a4921b8e..f58689f5a24e 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -17,9 +17,6 @@ void show_mem(unsigned int filter)
printk("Mem-Info:\n");
show_free_areas(filter);
- if (filter & SHOW_MEM_FILTER_PAGE_COUNT)
- return;
-
for_each_online_pgdat(pgdat) {
unsigned long flags;
int zoneid;