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Add "pure_initcall" for static variable initialization

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This is a quick hack to overcome the fact that SRCU currently does not
allow static initializers, and we need to sometimes initialize those
things before any other initializers (even "core" ones) can do so.

Currently we don't allow this at all for modules, and the only user that
needs is right now is cpufreq. As reported by Thomas Gleixner:

   "Commit b4dfdbb3c7 ("[PATCH] cpufreq:
    make the transition_notifier chain use SRCU breaks cpu frequency
    notification users, which register the callback > on core_init
    level."

Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Arjan van de Ven <[email protected]>
Cc: Andrew Morton <[email protected]>,
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Linus Torvalds 2006-11-20 11:47:18 -08:00
commit b3438f8266
3 changed files with 11 additions and 1 deletions
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2
include/asm-generic/vmlinux.lds.h
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@ -215,6 +215,8 @@
.notes : { *(.note.*) } :note
#define INITCALLS \
*(.initcall0.init) \
*(.initcall0s.init) \
*(.initcall1.init) \
*(.initcall1s.init) \
*(.initcall2.init) \