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Groups > linux.kernel > #1741035
| From | Dennis Zhou <dennisszhou@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/2] percpu: fix starting offset for chunk statistics traversal |
| Date | 2017-09-27 23:40 +0200 |
| Message-ID | <uusdH-8rg-19@gated-at.bofh.it> (permalink) |
| References | <uusdH-8rg-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
This patch fixes the starting offset used when scanning chunks to compute the chunk statistics. The value start_offset (and end_offset) are managed in bytes while the traversal occurs over bits. Thus for the reserved and dynamic chunk, it may incorrectly skip over the initial allocations. Signed-off-by: Dennis Zhou <dennisszhou@gmail.com> --- mm/percpu-stats.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/percpu-stats.c b/mm/percpu-stats.c index 6142484..7a58460 100644 --- a/mm/percpu-stats.c +++ b/mm/percpu-stats.c @@ -73,7 +73,7 @@ static void chunk_map_stats(struct seq_file *m, struct pcpu_chunk *chunk, last_alloc + 1 : 0; as_len = 0; - start = chunk->start_offset; + start = chunk->start_offset / PCPU_MIN_ALLOC_SIZE; /* * If a bit is set in the allocation map, the bound_map identifies -- 1.8.3.1
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[PATCH 0/2] percpu: fix block iterators and reserved chunk stats Dennis Zhou <dennisszhou@gmail.com> - 2017-09-27 23:40 +0200
[PATCH 2/2] percpu: fix iteration to prevent skipping over block Dennis Zhou <dennisszhou@gmail.com> - 2017-09-27 23:40 +0200
Re: [PATCH 2/2] percpu: fix iteration to prevent skipping over block Tejun Heo <tj@kernel.org> - 2017-09-28 00:00 +0200
Re: [PATCH 2/2] percpu: fix iteration to prevent skipping over block Luis Henriques <lhenriques@suse.com> - 2017-09-28 10:40 +0200
Re: [PATCH 2/2] percpu: fix iteration to prevent skipping over block Tejun Heo <tj@kernel.org> - 2017-09-28 16:50 +0200
[PATCH 1/2] percpu: fix starting offset for chunk statistics traversal Dennis Zhou <dennisszhou@gmail.com> - 2017-09-27 23:40 +0200
Re: [PATCH 1/2] percpu: fix starting offset for chunk statistics traversal Tejun Heo <tj@kernel.org> - 2017-09-27 23:50 +0200
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