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authorDavid S. Miller <davem@davemloft.net>2008-08-04 09:51:18 +0200
committerDavid S. Miller <davem@davemloft.net>2008-08-04 22:51:40 +0200
commit91a4231cc2efb9134373bb2a93be96a284955607 (patch)
treeda98661d063a77992775cefb2172ff090188c36e /arch/sparc64
parentsparc64: Directly call xcall_deliver() in smp_start_sync_tick_client. (diff)
downloadlinux-91a4231cc2efb9134373bb2a93be96a284955607.tar.xz
linux-91a4231cc2efb9134373bb2a93be96a284955607.zip
sparc64: Make smp_cross_call_masked() take a cpumask_t pointer.
Ideally this could be simplified further such that we could pass the pointer down directly into the xcall_deliver() implementation. But if we do that we need to do the "cpu_online(cpu)" and "cpu != self" checks down in those functions. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
-rw-r--r--arch/sparc64/kernel/smp.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 8c9e75dc1e65..740259d89552 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -761,15 +761,19 @@ dump_cpu_list_and_out:
static void (*xcall_deliver)(u64, u64, u64, const cpumask_t *);
-/* Send cross call to all processors mentioned in MASK
- * except self.
+/* Send cross call to all processors mentioned in MASK_P
+ * except self. Really, there are only two cases currently,
+ * "&cpu_online_map" and "&mm->cpu_vm_mask".
*/
-static void smp_cross_call_masked(unsigned long *func, u32 ctx, u64 data1, u64 data2, cpumask_t mask)
+static void smp_cross_call_masked(unsigned long *func, u32 ctx, u64 data1, u64 data2, const cpumask_t *mask_p)
{
u64 data0 = (((u64)ctx)<<32 | (((u64)func) & 0xffffffff));
int this_cpu = get_cpu();
+ cpumask_t mask;
- cpus_and(mask, mask, cpu_online_map);
+ mask = *mask_p;
+ if (mask_p != &cpu_online_map)
+ cpus_and(mask, mask, cpu_online_map);
cpu_clear(this_cpu, mask);
xcall_deliver(data0, data1, data2, &mask);
@@ -803,7 +807,7 @@ void arch_send_call_function_single_ipi(int cpu)
/* Send cross call to all processors except self. */
#define smp_cross_call(func, ctx, data1, data2) \
- smp_cross_call_masked(func, ctx, data1, data2, cpu_online_map)
+ smp_cross_call_masked(func, ctx, data1, data2, &cpu_online_map)
void smp_call_function_client(int irq, struct pt_regs *regs)
{
@@ -1056,7 +1060,7 @@ void smp_flush_tlb_mm(struct mm_struct *mm)
smp_cross_call_masked(&xcall_flush_tlb_mm,
ctx, 0, 0,
- mm->cpu_vm_mask);
+ &mm->cpu_vm_mask);
local_flush_and_out:
__flush_tlb_mm(ctx, SECONDARY_CONTEXT);
@@ -1074,7 +1078,7 @@ void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long
else
smp_cross_call_masked(&xcall_flush_tlb_pending,
ctx, nr, (unsigned long) vaddrs,
- mm->cpu_vm_mask);
+ &mm->cpu_vm_mask);
__flush_tlb_pending(ctx, nr, vaddrs);