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authorPekka Enberg <penberg@cs.helsinki.fi>2009-06-12 14:03:06 +0300
committerPekka Enberg <penberg@cs.helsinki.fi>2009-06-12 18:53:33 +0300
commit7e85ee0c1d15ca5f8bff0f514f158eba1742dd87 (patch)
tree8f9c21f0df6bea88740d7dd48834ac9ffc238e93 /init
parenteb91f1d0a531289e18f5587dc197d12a251c66a3 (diff)
downloadop-kernel-dev-7e85ee0c1d15ca5f8bff0f514f158eba1742dd87.zip
op-kernel-dev-7e85ee0c1d15ca5f8bff0f514f158eba1742dd87.tar.gz
slab,slub: don't enable interrupts during early boot
As explained by Benjamin Herrenschmidt: Oh and btw, your patch alone doesn't fix powerpc, because it's missing a whole bunch of GFP_KERNEL's in the arch code... You would have to grep the entire kernel for things that check slab_is_available() and even then you'll be missing some. For example, slab_is_available() didn't always exist, and so in the early days on powerpc, we used a mem_init_done global that is set form mem_init() (not perfect but works in practice). And we still have code using that to do the test. Therefore, mask out __GFP_WAIT, __GFP_IO, and __GFP_FS in the slab allocators in early boot code to avoid enabling interrupts. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'init')
-rw-r--r--init/main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/init/main.c b/init/main.c
index b3e8f14..f6204f7 100644
--- a/init/main.c
+++ b/init/main.c
@@ -640,6 +640,7 @@ asmlinkage void __init start_kernel(void)
"enabled early\n");
early_boot_irqs_on();
local_irq_enable();
+ kmem_cache_init_late();
/*
* HACK ALERT! This is early. We're enabling the console before
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