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| author | Richard Weinberger <richard@nod.at> | 2011-05-23 22:51:33 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-05-24 14:33:35 +0200 |
| commit | 3a3679078aed2c451ebc32836bbd3b8219a65e01 (patch) | |
| tree | 78418bbbaf58e8bc27c346e231e7fb6afa823912 | |
| parent | Merge branch 'sh-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/let... (diff) | |
| download | linux-3a3679078aed2c451ebc32836bbd3b8219a65e01.tar.xz linux-3a3679078aed2c451ebc32836bbd3b8219a65e01.zip | |
um: Use RWSEM_GENERIC_SPINLOCK on x86
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>
| -rw-r--r-- | 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 a9da516a5274..795ea8e869f4 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 |