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

..

vdso

tile: Convert VDSO timekeeping to the precise mechanism

2014-07-23 10:16:50 -07:00

asm-offsets.c

tile: check for correct compiler earlier in asm-offsets.c

2013-09-03 14:53:09 -04:00

backtrace.c

…

compat_signal.c

constify copy_siginfo_to_user{,32}()

2013-11-09 00:16:29 -05:00

compat.c

tile: remove stray blank space

2013-09-16 15:47:32 -04:00

early_printk.c

tile: various console improvements

2013-08-12 14:46:18 -04:00

entry.S

tile: implement gettimeofday() via vDSO

2013-08-13 16:26:21 -04:00

ftrace.c

ftrace: Do not pass data to ftrace_dyn_arch_init

2014-03-07 10:06:14 -05:00

hardwall.c

proc: convert /proc/$PID/hardwall to seq_file interface

2014-08-08 15:57:23 -07:00

head_32.S

tile: parameterize VA and PA space more cleanly

2013-09-03 14:47:34 -04:00

head_64.S

tile: parameterize VA and PA space more cleanly

2013-09-03 14:47:34 -04:00

hvglue_trace.c

tile: provide traceability for hypervisor calls

2013-08-13 16:26:31 -04:00

hvglue.S

tile: provide traceability for hypervisor calls

2013-08-13 16:26:31 -04:00

intvec_32.S

tile: Enable NMIs on return from handle_nmi() without errors

2014-03-07 11:19:48 -05:00

intvec_64.S

tile: Enable NMIs on return from handle_nmi() without errors

2014-03-07 11:19:48 -05:00

irq.c

tile: Use SPARSE_IRQ

2014-05-16 14:05:21 +02:00

kgdb.c

tilegx: support KGDB

2013-09-03 14:51:26 -04:00

kprobes.c

tile: support kprobes on tilegx

2013-08-30 11:55:53 -04:00

machine_kexec.c

…

Makefile

tile/perf: Support perf_events on tilegx and tilepro

2014-03-07 11:19:48 -05:00

mcount_64.S

tile: ftrace: Remove check of obsolete variable function_trace_stop

2014-07-18 13:57:03 -04:00

messaging.c

tile: don't use __get_cpu_var() with structure-typed arguments

2014-03-06 15:31:59 -05:00

module.c

mm/vmalloc.c: clean up map_vm_area third argument

2014-08-06 18:01:19 -07:00

pci_gx.c

tile: pci: Use irq_alloc/free_hwirq()

2014-05-16 14:05:21 +02:00

pci-dma.c

tile PCI RC: make default consistent DMA mask 32-bit

2013-09-03 14:53:37 -04:00

pci.c

arch/tile: remove unused variable 'devcap'

2014-04-04 13:11:40 -04:00

perf_event.c

tile/perf: Support perf_events on tilegx and tilepro

2014-03-07 11:19:48 -05:00

pmc.c

tile: Add support for handling PMC hardware

2014-03-07 11:19:47 -05:00

proc.c

tile: convert use of typedef ctl_table to struct ctl_table

2014-06-06 16:08:15 -07:00

process.c

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

ptrace.c

tile: correct r1 value during syscall tracing

2013-08-30 11:56:20 -04:00

reboot.c

tile: various console improvements

2013-08-12 14:46:18 -04:00

regs_32.S

tile: change <asm/system.h> to <asm/switch_to.h> in comments

2013-09-03 14:53:17 -04:00

regs_64.S

tile: change <asm/system.h> to <asm/switch_to.h> in comments

2013-09-03 14:53:17 -04:00

relocate_kernel_32.S

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

relocate_kernel_64.S

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

setup.c

replace strict_strto* call with kstrto*

2014-05-28 15:47:16 -04:00

signal.c

replace strict_strto* call with kstrto*

2014-05-28 15:47:16 -04:00

single_step.c

tile: remove support for TILE64

2013-09-03 14:53:29 -04:00

smp.c

tile: make __write_once a synonym for __read_mostly

2013-09-03 14:53:32 -04:00

smpboot.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile

2013-09-06 11:14:33 -07:00

stack.c

arch: tile: re-use kbasename() helper

2013-09-30 10:34:46 -04:00

sys.c

tile: support CONFIG_PREEMPT

2013-08-13 16:26:01 -04:00

sysfs.c

tile: support reporting Tilera hypervisor statistics

2013-09-03 14:51:36 -04:00

tile-desc_32.c

…

tile-desc_64.c

…

time.c

timekeeping: Create struct tk_read_base and use it in struct timekeeper

2014-07-23 15:01:53 -07:00

tlb.c

tile: do less L1 I-cache eviction

2013-08-30 11:56:34 -04:00

traps.c

replace strict_strto* call with kstrto*

2014-05-28 15:47:16 -04:00

unaligned.c

arch: tile: kernel: unaligned.c: Cleaning up uninitialized variables

2014-06-07 21:39:11 -04:00

usb.c

usb: add host support for the tilegx architecture

2012-07-18 16:40:29 -04:00

vdso.c

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

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

vmlinux.lds.S

tile: make __write_once a synonym for __read_mostly

2013-09-03 14:53:32 -04:00