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authorTejun Heo <tj@kernel.org>2009-10-02 13:28:56 +0900
committerTejun Heo <tj@kernel.org>2009-10-02 13:28:56 +0900
commit52594762a39dfb6338c9d0906ca21dd9ae9453be (patch)
tree4c80dd59ec452c9fe798edf3f4023914c1898a0b /arch/ia64/Kconfig
parent36886478f59ec0fdc24a8877c572b92f8d416aba (diff)
downloadblackbird-op-linux-52594762a39dfb6338c9d0906ca21dd9ae9453be.tar.gz
blackbird-op-linux-52594762a39dfb6338c9d0906ca21dd9ae9453be.zip
ia64: convert to dynamic percpu allocator
Unlike other archs, ia64 reserves space for percpu areas during early memory initialization. These areas occupy a contiguous region indexed by cpu number on contiguous memory model or are grouped by node on discontiguous memory model. As allocation and initialization are done by the arch code, all that setup_per_cpu_areas() needs to do is communicating the determined layout to the percpu allocator. This patch implements setup_per_cpu_areas() for both contig and discontig memory models and drops HAVE_LEGACY_PER_CPU_AREA. Please note that for contig model, the allocation itself is modified only to allocate for possible cpus instead of NR_CPUS. As dynamic percpu allocator can handle non-direct mapping, there's no reason to allocate memory for cpus which aren't possible. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: linux-ia64 <linux-ia64@vger.kernel.org>
Diffstat (limited to 'arch/ia64/Kconfig')
-rw-r--r--arch/ia64/Kconfig3
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 1ee596cd942f..2d7f56a98e0f 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -87,9 +87,6 @@ config GENERIC_TIME_VSYSCALL
bool
default y
-config HAVE_LEGACY_PER_CPU_AREA
- def_bool y
-
config HAVE_SETUP_PER_CPU_AREA
def_bool y
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