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| author | Srikar Dronamraju <srikar@linux.vnet.ibm.com> | 2020-10-19 06:27:15 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-10-19 12:32:34 +0200 |
| commit | 966730a6e8524c1b5fe64358e5884605cab6ccb3 (patch) | |
| tree | fead8e6ada75324f84d8a8ef963f09a9b0c2e06b /arch/powerpc | |
| parent | powerpc/mce: Avoid nmi_enter/exit in real mode on pseries hash (diff) | |
| download | linux-966730a6e8524c1b5fe64358e5884605cab6ccb3.tar.xz linux-966730a6e8524c1b5fe64358e5884605cab6ccb3.zip | |
powerpc/smp: Remove unnecessary variable
Commit 3ab33d6dc3e9 ("powerpc/smp: Optimize update_mask_by_l2")
introduced submask_fn in update_mask_by_l2 to track the right submask.
However commit f6606cfdfbcd ("powerpc/smp: Dont assume l2-cache to be
superset of sibling") introduced sibling_mask in update_mask_by_l2 to
track the same submask. Remove sibling_mask in favour of submask_fn.
Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201019042716.106234-2-srikar@linux.vnet.ibm.com
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 0dc1b8591cc8..098d9e26ceb3 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -1247,18 +1247,16 @@ static bool update_mask_by_l2(int cpu) cpumask_var_t mask; int i; + if (has_big_cores) + submask_fn = cpu_smallcore_mask; + l2_cache = cpu_to_l2cache(cpu); if (!l2_cache) { - struct cpumask *(*sibling_mask)(int) = cpu_sibling_mask; - /* * If no l2cache for this CPU, assume all siblings to share * cache with this CPU. */ - if (has_big_cores) - sibling_mask = cpu_smallcore_mask; - - for_each_cpu(i, sibling_mask(cpu)) + for_each_cpu(i, submask_fn(cpu)) set_cpus_related(cpu, i, cpu_l2_cache_mask); return false; @@ -1267,9 +1265,6 @@ static bool update_mask_by_l2(int cpu) alloc_cpumask_var_node(&mask, GFP_KERNEL, cpu_to_node(cpu)); cpumask_and(mask, cpu_online_mask, cpu_cpu_mask(cpu)); - if (has_big_cores) - submask_fn = cpu_smallcore_mask; - /* Update l2-cache mask with all the CPUs that are part of submask */ or_cpumasks_related(cpu, cpu, submask_fn, cpu_l2_cache_mask); |