commit: 3a3679078aed2c451ebc32836bbd3b8219a65e01 From: Richard Weinberger <[email protected]> Date: Mon, 23 May 2011 22:51:33 +0200 Subject: [PATCH] um: Use RWSEM_GENERIC_SPINLOCK on x86 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
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 <[email protected]> Tested-by: Toralf Förster <[email protected]> Signed-off-by: Richard Weinberger <[email protected]> Cc: [email protected] Cc: <[email protected]> # .39.x Link: http://lkml.kernel.org/r/%3C1306183893-26655-1-git-send-email-richard%40nod.at%3E Signed-off-by: Thomas Gleixner <[email protected]> --- arch/um/Kconfig.x86 | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/um/Kconfig.x86 b/arch/um/Kconfig.x86 index a9da516..795ea8e 100644 --- a/arch/um/Kconfig.x86 +++ b/arch/um/Kconfig.x86 @@ -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
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