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| author | Ingo Molnar <mingo@kernel.org> | 2015-10-06 17:10:28 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-10-06 17:10:28 +0200 |
| commit | 82fc167c392a1700f9adbde639730ee8c8122474 (patch) | |
| tree | 373ab737a040dd21e5f98425e7c82a6cc4a83568 /drivers/base/cacheinfo.c | |
| parent | atomic: Implement atomic_read_ctrl() (diff) | |
| parent | Linux 4.3-rc4 (diff) | |
| download | linux-82fc167c392a1700f9adbde639730ee8c8122474.tar.xz linux-82fc167c392a1700f9adbde639730ee8c8122474.zip | |
Merge tag 'v4.3-rc4' into locking/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/base/cacheinfo.c')
| -rw-r--r-- | drivers/base/cacheinfo.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c index 764280a91776..e9fd32e91668 100644 --- a/drivers/base/cacheinfo.c +++ b/drivers/base/cacheinfo.c @@ -148,7 +148,11 @@ static void cache_shared_cpu_map_remove(unsigned int cpu) if (sibling == cpu) /* skip itself */ continue; + sib_cpu_ci = get_cpu_cacheinfo(sibling); + if (!sib_cpu_ci->info_list) + continue; + sib_leaf = sib_cpu_ci->info_list + index; cpumask_clear_cpu(cpu, &sib_leaf->shared_cpu_map); cpumask_clear_cpu(sibling, &this_leaf->shared_cpu_map); @@ -159,6 +163,9 @@ static void cache_shared_cpu_map_remove(unsigned int cpu) static void free_cache_attributes(unsigned int cpu) { + if (!per_cpu_cacheinfo(cpu)) + return; + cache_shared_cpu_map_remove(cpu); kfree(per_cpu_cacheinfo(cpu)); @@ -514,8 +521,7 @@ static int cacheinfo_cpu_callback(struct notifier_block *nfb, break; case CPU_DEAD: cache_remove_dev(cpu); - if (per_cpu_cacheinfo(cpu)) - free_cache_attributes(cpu); + free_cache_attributes(cpu); break; } return notifier_from_errno(rc); |