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| author | Robin Holt <holt@sgi.com> | 2008-08-15 09:21:24 -0500 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-08-18 15:39:48 -0700 |
| commit | 97653f92c004d322ef27edb168a1b5f31142c6dc (patch) | |
| tree | ca30e24926384fa24d3c39680bd26acc004e4b29 /arch/ia64/kernel/smp.c | |
| parent | ea42b8ce8cc9f4a3d3048fae5ba8ad7269d17afa (diff) | |
| download | linux-97653f92c004d322ef27edb168a1b5f31142c6dc.tar.gz linux-97653f92c004d322ef27edb168a1b5f31142c6dc.tar.bz2 linux-97653f92c004d322ef27edb168a1b5f31142c6dc.zip | |
[IA64] Shrink shadow_flush_counts to a short array to save 8k of per_cpu area.
Making allmodconfig will break the current build. This patch shrinks
the per_cpu__shadow_flush_counts from 16k to 8k which frees enough space
to allow allmodconfig to successfully complete.
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11338
Signed-off-by: Robin Holt <holt@sgi.com>
Acked-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel/smp.c')
| -rw-r--r-- | arch/ia64/kernel/smp.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index 3676468612b6..da8f020d82c1 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -58,7 +58,7 @@ static struct local_tlb_flush_counts { unsigned int count; } __attribute__((__aligned__(32))) local_tlb_flush_counts[NR_CPUS]; -static DEFINE_PER_CPU(unsigned int, shadow_flush_counts[NR_CPUS]) ____cacheline_aligned; +static DEFINE_PER_CPU(unsigned short, shadow_flush_counts[NR_CPUS]) ____cacheline_aligned; #define IPI_CALL_FUNC 0 #define IPI_CPU_STOP 1 @@ -254,7 +254,7 @@ smp_local_flush_tlb(void) void smp_flush_tlb_cpumask(cpumask_t xcpumask) { - unsigned int *counts = __ia64_per_cpu_var(shadow_flush_counts); + unsigned short *counts = __ia64_per_cpu_var(shadow_flush_counts); cpumask_t cpumask = xcpumask; int mycpu, cpu, flush_mycpu = 0; @@ -262,7 +262,7 @@ smp_flush_tlb_cpumask(cpumask_t xcpumask) mycpu = smp_processor_id(); for_each_cpu_mask(cpu, cpumask) - counts[cpu] = local_tlb_flush_counts[cpu].count; + counts[cpu] = local_tlb_flush_counts[cpu].count & 0xffff; mb(); for_each_cpu_mask(cpu, cpumask) { @@ -276,7 +276,7 @@ smp_flush_tlb_cpumask(cpumask_t xcpumask) smp_local_flush_tlb(); for_each_cpu_mask(cpu, cpumask) - while(counts[cpu] == local_tlb_flush_counts[cpu].count) + while(counts[cpu] == (local_tlb_flush_counts[cpu].count & 0xffff)) udelay(FLUSH_DELAY); preempt_enable(); |