aboutsummaryrefslogtreecommitdiffstats
path: root/kernel
diff options
context:
space:
mode:
authorHugh Dickins <hugh@veritas.com>2009-02-09 14:20:50 -0500
committerIngo Molnar <mingo@elte.hu>2009-02-09 18:50:37 -0500
commitacd895795d35d7c6405f20301a846d16998795ec (patch)
treee1f704ec416e5ef735cadcf40392a2398c319e3f /kernel
parent4c098bcd55fad34dcf224bf8343db6a9ac58fc68 (diff)
profiling: fix broken profiling regression
Impact: fix broken /proc/profile on UP machines Commit c309b917cab55799ea489d7b5f1b77025d9f8462 "cpumask: convert kernel/profile.c" broke profiling. prof_cpu_mask was previously initialized to CPU_MASK_ALL, but left uninitialized in that commit. We need to copy cpu_possible_mask (cpu_online_mask is not enough). Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/profile.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/profile.c b/kernel/profile.c
index 784933acf5b8..7724e0409bae 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -114,12 +114,15 @@ int __ref profile_init(void)
114 if (!slab_is_available()) { 114 if (!slab_is_available()) {
115 prof_buffer = alloc_bootmem(buffer_bytes); 115 prof_buffer = alloc_bootmem(buffer_bytes);
116 alloc_bootmem_cpumask_var(&prof_cpu_mask); 116 alloc_bootmem_cpumask_var(&prof_cpu_mask);
117 cpumask_copy(prof_cpu_mask, cpu_possible_mask);
117 return 0; 118 return 0;
118 } 119 }
119 120
120 if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL)) 121 if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL))
121 return -ENOMEM; 122 return -ENOMEM;
122 123
124 cpumask_copy(prof_cpu_mask, cpu_possible_mask);
125
123 prof_buffer = kzalloc(buffer_bytes, GFP_KERNEL); 126 prof_buffer = kzalloc(buffer_bytes, GFP_KERNEL);
124 if (prof_buffer) 127 if (prof_buffer)
125 return 0; 128 return 0;