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um: Use RWSEM_GENERIC_SPINLOCK on x86

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Commit d12337 (rwsem: Remove redundant asmregparm annotation)
broke rwsem on UML.

As we cannot compile UML with -mregparm=3 and keeping asmregparm only
for UML is inadequate the easiest solution is using RWSEM_GENERIC_SPINLOCK.

Thanks to Thomas Gleixner for the idea.

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Tested-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: <stable@kernel.org> # .39.x
Link: http://lkml.kernel.org/r/%3C1306183893-26655-1-git-send-email-richard%40nod.at%3E
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Richard Weinberger 2011-05-23 22:51:33 +02:00 committed by Thomas Gleixner
parent d762f43831
commit 3a3679078a
1 changed files with 2 additions and 2 deletions
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4
arch/um/Kconfig.x86
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@ -29,10 +29,10 @@ config X86_64
def_bool 64BIT
config RWSEM_XCHGADD_ALGORITHM
def_bool X86_XADD
def_bool X86_XADD && 64BIT
config RWSEM_GENERIC_SPINLOCK
def_bool !X86_XADD
def_bool !RWSEM_XCHGADD_ALGORITHM
config 3_LEVEL_PGTABLES
bool "Three-level pagetables (EXPERIMENTAL)" if !64BIT