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authorDavid S. Miller <davem@davemloft.net>2011-07-25 17:12:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-25 20:57:10 -0700
commit4a0100f7546fb642e0e04a38fa7ca198cd016b47 (patch)
tree15ed3de95abf8715a157922e6ac9c6b5fa34e200 /arch/sparc/Kconfig
parent4dedbf8dc1c825f2e4aa2d2624058533b5d76f85 (diff)
sparc64: use RCU page table freeing
Make use of the generic RCU page table freeing on Sparc64, doing so allows for race-free software page-table walkers like gup_fast(). Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc/Kconfig')
-rw-r--r--arch/sparc/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index af64348775e2..1074dddcb104 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -41,6 +41,7 @@ config SPARC64
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
select HAVE_KRETPROBES
select HAVE_KPROBES
+ select HAVE_RCU_TABLE_FREE if SMP
select HAVE_MEMBLOCK
select HAVE_SYSCALL_WRAPPERS
select HAVE_DYNAMIC_FTRACE