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linux-sg2042
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percpu: fix starting offset for chunk statistics traversal 

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>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Dennis Zhou 2017-09-27 16:34:59 -05:00 committed by Tejun Heo
parent e88d62cd4b
commit 2e08d20d77
1 changed files with 1 additions and 1 deletions
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2
mm/percpu-stats.c
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@ -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