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powerpc: Replace mem_init_done with slab_is_available()

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We have a powerpc specific global called mem_init_done which is "set on
boot once kmalloc can be called".

But that's not *quite* true. We set it at the bottom of mem_init(), and
rely on the fact that mm_init() calls kmem_cache_init() immediately
after that, and nothing is running in parallel.

So replace it with the generic and 100% correct slab_is_available().

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman
2015-03-30 14:10:37 +11:00
parent 4f9c53c8cc
commit f691fa1080
7 changed files with 10 additions and 15 deletions
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1
arch/powerpc/include/asm/setup.h
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@@ -7,7 +7,6 @@
extern void ppc_printk_progress(char *s, unsigned short hex);
extern unsigned int rtas_data;
extern int mem_init_done; /* set on boot once kmalloc can be called */
extern unsigned long long memory_limit;
extern unsigned long klimit;
extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);