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(parent: 9ba1984) | patch
powerpc: Update cpu_sibling_maps dynamically
authorNathan Lynch <ntl@pobox.com>
Sun, 27 Jul 2008 05:24:52 +0000 (15:24 +1000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Mon, 28 Jul 2008 06:30:49 +0000 (16:30 +1000)
commite2075f79a99b45a6cc10de021c93f07212098a84
tree8c3ccb423f706336741734d0758219028d765396tree | snapshot (tar.gz zip)
parent9ba1984ead5d25c93d241e0ee43f8f6a252f60d9commit | diff
powerpc: Update cpu_sibling_maps dynamically

Rather doing one initialization pass over all the per-cpu
cpu_sibling_maps at boot, update the maps at cpu online/offline time.

This is a behavior change -- the thread_siblings attribute now
reflects only online siblings, whereas it would display offline
siblings before.  The new behavior matches that of x86, and is
arguably more useful.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/kernel/setup-common.c diff | blob | blame | history
arch/powerpc/kernel/setup_64.c diff | blob | blame | history
arch/powerpc/kernel/smp.c diff | blob | blame | history