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mm: replace various uses of num_physpages by totalram_pages

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Sizing of memory allocations shouldn't depend on the number of physical
pages found in a system, as that generally includes (perhaps a huge amount
of) non-RAM pages.  The amount of what actually is usable as storage
should instead be used as a basis here.

Some of the calculations (i.e.  those not intending to use high memory)
should likely even use (totalram_pages - totalhigh_pages).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Beulich 2009-09-21 17:03:05 -07:00 • committed by Linus Torvalds
parent 4738e1b9cf
commit 4481374ce8
21 changed files with 38 additions and 41 deletions
Download patch file Download diff file Expand all files Collapse all files

6
net/sctp/protocol.c
View file

@ -1184,10 +1184,10 @@ SCTP_STATIC __init int sctp_init(void)
/* Size and allocate the association hash table.
* The methodology is similar to that of the tcp hash tables.
*/
if (num_physpages >= (128 * 1024))
goal = num_physpages >> (22 - PAGE_SHIFT);
if (totalram_pages >= (128 * 1024))
goal = totalram_pages >> (22 - PAGE_SHIFT);
else
goal = num_physpages >> (24 - PAGE_SHIFT);
goal = totalram_pages >> (24 - PAGE_SHIFT);
for (order = 0; (1UL << order) < goal; order++)
;