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| author |   Eric Dumazet <dada1@cosmosbay.com> | 2006-02-04 23:27:36 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-05 11:06:51 -0800 |
| commit | 88a2a4ac6b671a4b0dd5d2d762418904c05f4104 (patch) | |
| tree | 8c30052a0d7fadec37c785a42a71b28d0a9c5fcf /net/core/utils.c | |
| parent | Revert "[PATCH] x86_64: Fix the node cpumask of a cpu going down" (diff) | |
| download | linux-dev-88a2a4ac6b671a4b0dd5d2d762418904c05f4104.tar.xz linux-dev-88a2a4ac6b671a4b0dd5d2d762418904c05f4104.zip | |
[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>
Diffstat (limited to 'net/core/utils.c')
| -rw-r--r-- | net/core/utils.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/core/utils.c b/net/core/utils.c index ac1d1fcf8673..fdc4f38bc46c 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -121,7 +121,7 @@ void __init net_random_init(void) { int i; - for (i = 0; i < NR_CPUS; i++) { + for_each_cpu(i) { struct nrnd_state *state = &per_cpu(net_rand_state,i); __net_srandom(state, i+jiffies); } @@ -133,7 +133,7 @@ static int net_random_reseed(void) unsigned long seed[NR_CPUS]; get_random_bytes(seed, sizeof(seed)); - for (i = 0; i < NR_CPUS; i++) { + for_each_cpu(i) { struct nrnd_state *state = &per_cpu(net_rand_state,i); __net_srandom(state, seed[i]); } |