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profile_init() calls in to alloc_bootmem() on early initialization.  While
alloc_bootmem() is __init, the reference itself is safe in that it is
tucked below a !slab_is_available() check.  So, flag profile_init() as
__ref.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>