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Linus Torvalds 0195c00244 Disintegrate and delete asm/system.h 
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Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system

Pull "Disintegrate and delete asm/system.h" from David Howells:
 "Here are a bunch of patches to disintegrate asm/system.h into a set of
  separate bits to relieve the problem of circular inclusion
  dependencies.

  I've built all the working defconfigs from all the arches that I can
  and made sure that they don't break.

  The reason for these patches is that I recently encountered a circular
  dependency problem that came about when I produced some patches to
  optimise get_order() by rewriting it to use ilog2().

  This uses bitops - and on the SH arch asm/bitops.h drags in
  asm-generic/get_order.h by a circuituous route involving asm/system.h.

  The main difficulty seems to be asm/system.h.  It holds a number of
  low level bits with no/few dependencies that are commonly used (eg.
  memory barriers) and a number of bits with more dependencies that
  aren't used in many places (eg.  switch_to()).

  These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

        Move memory barriers here.  This already done for MIPS and Alpha.

    (2) asm/switch_to.h

        Move switch_to() and related stuff here.

    (3) asm/exec.h

        Move arch_align_stack() here.  Other process execution related bits
        could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

        Move xchg() and cmpxchg() here as they're full word atomic ops and
        frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

        Move die() and related bits.

    (6) asm/auxvec.h

        Move AT_VECTOR_SIZE_ARCH here.

  Other arch headers are created as needed on a per-arch basis."

Fixed up some conflicts from other header file cleanups and moving code
around that has happened in the meantime, so David's testing is somewhat
weakened by that.  We'll find out anything that got broken and fix it..

* tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
  Delete all instances of asm/system.h
  Remove all #inclusions of asm/system.h
  Add #includes needed to permit the removal of asm/system.h
  Move all declarations of free_initmem() to linux/mm.h
  Disintegrate asm/system.h for OpenRISC
  Split arch_align_stack() out from asm-generic/system.h
  Split the switch_to() wrapper out of asm-generic/system.h
  Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
  Create asm-generic/barrier.h
  Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
  Disintegrate asm/system.h for Xtensa
  Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
  Disintegrate asm/system.h for Tile
  Disintegrate asm/system.h for Sparc
  Disintegrate asm/system.h for SH
  Disintegrate asm/system.h for Score
  Disintegrate asm/system.h for S390
  Disintegrate asm/system.h for PowerPC
  Disintegrate asm/system.h for PA-RISC
  Disintegrate asm/system.h for MN10300
  ...
2012-03-28 15:58:21 -07:00
..
cpu Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
asm-offsets.c microblaze: Remove "cache" optimized copy_page function 2010-05-06 11:21:58 +02:00
dma.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
early_printk.c microblaze: Handle TLB skip size dynamically 2012-03-23 09:28:19 +01:00
entry-nommu.S microblaze: Do not use "la" pseudo instruction - use addik instead 2011-03-09 08:09:54 +01:00
entry.S microblaze: Trivial asm fix 2012-01-05 08:34:28 +01:00
exceptions.c microblaze: Raise SIGFPE/FPE_INTDIV for div by zero 2011-10-14 12:24:31 +02:00
ftrace.c microblaze: Fix ftrace 2011-04-01 09:34:51 +02:00
head.S microblaze: Handle TLB skip size dynamically 2012-03-23 09:28:19 +01:00
heartbeat.c microblaze: Add support for little-endian Microblaze 2010-10-21 15:51:59 +10:00
hw_exception_handler.S microblaze: Handle TLB skip size dynamically 2012-03-23 09:28:19 +01:00
init_task.c
intc.c Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2012-03-27 18:20:56 -07:00
irq.c irq_domain/microblaze: Convert microblaze to use irq_domains 2012-02-16 06:11:24 -07:00
kgdb.c microblaze: KGDB little endian support 2010-10-21 15:51:58 +10:00
Makefile microblaze: Fix ftrace 2011-04-01 09:34:51 +02:00
mcount.S microblaze: ftrace: Add dynamic function graph tracer 2009-12-14 08:44:54 +01:00
microblaze_ksyms.c Disintegrate asm/system.h for Microblaze 2012-03-28 18:30:02 +01:00
misc.S microblaze: Handle TLB skip size dynamically 2012-03-23 09:28:19 +01:00
module.c microblaze: Fix debug message in module 2012-01-05 08:34:27 +01:00
process.c Disintegrate asm/system.h for Microblaze 2012-03-28 18:30:02 +01:00
prom_parse.c of/pci: move of_irq_map_pci() into generic code 2011-02-04 11:46:50 -07:00
prom.c Disintegrate asm/system.h for Microblaze 2012-03-28 18:30:02 +01:00
ptrace.c audit: inline audit_syscall_entry to reduce burden on archs 2012-01-17 16:16:56 -05:00
reset.c gpio/microblaze: Eliminate duplication of of_get_named_gpio_flags() 2011-12-12 13:40:16 -07:00
selfmod.c
setup.c Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
signal.c microblaze: Fix sparse warnings - signal.c 2011-03-09 08:09:59 +01:00
stacktrace.c microblaze: Add stack unwinder 2010-08-04 10:22:35 +02:00
sys_microblaze.c microblaze: Fix missing microblaze specific syscalls declaration 2011-03-09 08:09:58 +01:00
syscall_table.S microblaze: Wire-up new system calls 2012-01-05 11:16:51 +01:00
timer.c Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
traps.c Disintegrate asm/system.h for Microblaze 2012-03-28 18:30:02 +01:00
unwind.c microblaze: Fix sparse warning - unwind.c 2011-03-09 08:09:58 +01:00
vmlinux.lds.S microblaze: Extend space for compiled-in FDT to 32kB 2012-03-23 09:28:17 +01:00