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| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-02-01 12:37:48 -0500 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-03-22 15:47:00 -0400 |
| commit | adf6d9b30f089c52e674e84ca2960581e504e5e3 (patch) | |
| tree | f680f2877480201116e54da1e6a1af848884d646 /arch/tile/Kconfig | |
| parent | ef567f25d5d9d803b89bc2aec6bb71fe8b4bebd9 (diff) | |
| download | linux-adf6d9b30f089c52e674e84ca2960581e504e5e3.tar.gz linux-adf6d9b30f089c52e674e84ca2960581e504e5e3.tar.bz2 linux-adf6d9b30f089c52e674e84ca2960581e504e5e3.zip | |
tile: support atomic64_dec_if_positive()
Use the normal cmpxchg() idiom to implement this functionality.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/Kconfig')
| -rw-r--r-- | arch/tile/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 0e500d90c2a0..9a9d08637ab9 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -24,6 +24,7 @@ config TILE select MODULES_USE_ELF_RELA select HAVE_ARCH_TRACEHOOK select HAVE_SYSCALL_TRACEPOINTS + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE # FIXME: investigate whether we need/want these options. # select HAVE_IOREMAP_PROT |