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cda5310328
linux/arch/um/sys-i386
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Richard Weinberger 57d8e02e3c um: mdd support for 64 bit atomic operations 
This adds support for 64 bit atomic operations on 32 bit UML systems.  XFS
needs them since 2.6.38.

  $ make ARCH=um SUBARCH=i386
  ...
    LD      .tmp_vmlinux1
  fs/built-in.o: In function `xlog_regrant_reserve_log_space':
  xfs_log.c:(.text+0xd8584): undefined reference to `atomic64_read_386'
  xfs_log.c:(.text+0xd85ac): undefined reference to `cmpxchg8b_emu'
  ...

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=32812

Reported-by: Martin Walch <walch.martin@web.de>
Tested-by: Martin Walch <walch.martin@web.de>
Cc: Martin Walch <walch.martin@web.de>
Cc: <stable@kernel.org> [2.6.38.x 084189a: um: disable CONFIG_CMPXCHG_LOCAL]
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-04-28 11:28:21 -07:00
..
asm uml: kernels on {i386,x86_64} produce bad coredumps 2011-03-22 17:44:09 -07:00
shared/sysdep Add generic sys_old_mmap() 2010-03-12 15:52:32 -08:00
atomic64_cx8_32.S um: mdd support for 64 bit atomic operations 2011-04-28 11:28:21 -07:00
bug.c uml: header untangling 2008-02-05 09:44:28 -08:00
bugs.c UML: make several more things static 2008-07-24 10:47:24 -07:00
checksum.S UML: make several more things static 2008-07-24 10:47:24 -07:00
delay.c [PATCH] uml: fix unreasonably long udelay 2007-04-02 10:06:08 -07:00
elfcore.c elf coredump: add extended numbering support 2010-03-06 11:26:46 -08:00
fault.c uml: style fixes pass 3 2007-10-16 09:43:05 -07:00
ksyms.c Generic semaphore implementation 2008-04-17 10:42:34 -04:00
ldt.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
Makefile um: mdd support for 64 bit atomic operations 2011-04-28 11:28:21 -07:00
ptrace_user.c uml: style fixes in arch/um/sys-x86_64 2008-02-05 09:44:31 -08:00
ptrace.c ptrace: change signature of arch_ptrace() 2010-10-27 18:03:10 -07:00
setjmp.S
signal.c uml: fix a compile error 2008-10-20 08:52:34 -07:00
stub_segv.c uml: simplify SIGSEGV handling 2008-02-05 09:44:28 -08:00
stub.S uml: fix a section warning 2009-06-16 19:47:47 -07:00
sys_call_table.S Add generic sys_old_mmap() 2010-03-12 15:52:32 -08:00
syscalls.c Add generic sys_ipc wrapper 2010-03-12 15:52:32 -08:00
sysrq.c Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
tls.c uml: host TLS diagnostics 2008-02-05 09:44:27 -08:00
user-offsets.c uml: tidy ptrace interface 2008-05-13 08:02:21 -07:00