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| author | Tejun Heo <tj@kernel.org> | 2009-10-02 13:28:56 +0900 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2009-10-02 13:28:56 +0900 |
| commit | 52594762a39dfb6338c9d0906ca21dd9ae9453be (patch) | |
| tree | 4c80dd59ec452c9fe798edf3f4023914c1898a0b /arch/ia64/Kconfig | |
| parent | 36886478f59ec0fdc24a8877c572b92f8d416aba (diff) | |
| download | linux-exynos-52594762a39dfb6338c9d0906ca21dd9ae9453be.tar.gz linux-exynos-52594762a39dfb6338c9d0906ca21dd9ae9453be.tar.bz2 linux-exynos-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/Kconfig | 3 |
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 |