Andy Lutomirski a6c19dfe39 arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate area ...

The core mm code will provide a default gate area based on
FIXADDR_USER_START and FIXADDR_USER_END if
!defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).

This default is only useful for ia64.  arm64, ppc, s390, sh, tile, 64-bit
UML, and x86_32 have their own code just to disable it.  arm, 32-bit UML,
and x86_64 have gate areas, but they have their own implementations.

This gets rid of the default and moves the code into ia64.

This should save some code on architectures without a gate area: it's now
possible to inline the gate_area functions in the default case.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [in principle]
Acked-by: Richard Weinberger <richard@nod.at> [for um]
Acked-by: Will Deacon <will.deacon@arm.com> [for arm64]
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Nathan Lynch <Nathan_Lynch@mentor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2014-08-08 15:57:27 -07:00

..

a.out-core.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

bugs.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

cache.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

common.lds.S

UML: normalize global variables exported by vmlinux.lds

2013-07-03 16:07:34 -07:00

dma.h

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

fixmap.h

um: use generic fixmap.h

2014-01-23 16:36:54 -08:00

irq.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

irqflags.h

um: kill system-um.h

2011-11-02 14:15:34 +01:00

Kbuild

lib/scatterlist: make ARCH_HAS_SG_CHAIN an actual Kconfig

2014-08-08 15:57:26 -07:00

kmap_types.h

um: remove km_type definitions

2012-07-24 15:27:31 +08:00

kvm_para.h

kvmclock: Add functions to check if the host has stopped the vm

2012-04-08 12:48:59 +03:00

mmu_context.h

um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it

2012-03-20 21:29:50 -04:00

mmu.h

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

page.h

arm64,ia64,ppc,s390,sh,tile,um,x86,mm: remove default gate area

2014-08-08 15:57:27 -07:00

pgalloc.h

um: remove pointless include of asm/fixmap.h from asm/pgtable.h

2012-03-25 00:29:55 +01:00

pgtable-2level.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

pgtable-3level.h

um, x86: Cast to (u64 *) inside set_64bit()

2010-08-03 07:00:16 -07:00

pgtable.h

consolidate io_remap_pfn_range definitions

2013-06-29 12:46:35 +04:00

processor-generic.h

um: Removed unused attributes from thread_struct

2014-01-26 11:48:37 +01:00

ptrace-generic.h

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

setup.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

smp.h

um: get rid of pointless include "..." where include <...> will do

2012-10-09 22:28:45 +02:00

sysrq.h

um: move sysrq.h out of include/shared

2012-10-09 22:28:19 +02:00

thread_info.h

preempt: Make PREEMPT_ACTIVE generic

2013-11-13 20:21:47 +01:00

timex.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

tlb.h

mm: split 'tlb_flush_mmu()' into tlb flushing and memory freeing parts

2014-04-25 16:05:40 -07:00

tlbflush.h

x86, um: initial part of asm-um move

2008-10-22 22:55:19 -07:00

uaccess.h

um: kill um_uaccess.h

2011-11-02 14:15:13 +01:00