[PATCH] percpu data: only iterate over possible CPUs

percpu_data blindly allocates bootmem memory to store NR_CPUS instances of
cpudata, instead of allocating memory only for possible cpus.

As a preparation for changing that, we need to convert various 0 -> NR_CPUS
loops to use for_each_cpu().

(The above only applies to users of asm-generic/percpu.h.  powerpc has gone it
alone and is presently only allocating memory for present CPUs, so it's
currently corrupting memory).

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Jens Axboe <axboe@suse.de>
Cc: Anton Blanchard <anton@samba.org>
Acked-by: William Irwin <wli@holomorphy.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric Dumazet
2006-02-04 23:27:36 -08:00
committed by Linus Torvalds
parent cef5076987
commit 88a2a4ac6b
11 changed files with 17 additions and 16 deletions

View File

@ -379,7 +379,6 @@ static void __devinit fdtable_defer_list_init(int cpu)
void __init files_defer_init(void)
{
int i;
/* Really early - can't use for_each_cpu */
for (i = 0; i < NR_CPUS; i++)
for_each_cpu(i)
fdtable_defer_list_init(i);
}