path: root/mm/percpu-stats.c
diff options
authorDennis Zhou <>2019-02-26 10:00:08 -0800
committerDennis Zhou <>2019-03-13 12:25:31 -0700
commit92c14cab43267411bc9160f23d55a7548d814483 (patch)
tree9aa31dff3801639a5ef792157d12109976bf12d5 /mm/percpu-stats.c
parent047924c96898266e9a37412434abd1db72600384 (diff)
percpu: convert chunk hints to be based on pcpu_block_md
As mentioned in the last patch, a chunk's hints are no different than a block just responsible for more bits. This converts chunk level hints to use a pcpu_block_md to maintain them. This lets us reuse the same hint helper functions as a block. The left_free and right_free are unused by the chunk's pcpu_block_md. Signed-off-by: Dennis Zhou <> Reviewed-by: Peng Fan <>
Diffstat (limited to 'mm/percpu-stats.c')
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/percpu-stats.c b/mm/percpu-stats.c
index b5fdd43b60c9..ef5034a0464e 100644
--- a/mm/percpu-stats.c
+++ b/mm/percpu-stats.c
@@ -53,6 +53,7 @@ static int find_max_nr_alloc(void)
static void chunk_map_stats(struct seq_file *m, struct pcpu_chunk *chunk,
int *buffer)
+ struct pcpu_block_md *chunk_md = &chunk->chunk_md;
int i, last_alloc, as_len, start, end;
int *alloc_sizes, *p;
/* statistics */
@@ -121,9 +122,9 @@ static void chunk_map_stats(struct seq_file *m, struct pcpu_chunk *chunk,
P("nr_alloc", chunk->nr_alloc);
P("max_alloc_size", chunk->max_alloc_size);
P("empty_pop_pages", chunk->nr_empty_pop_pages);
- P("first_bit", chunk->first_bit);
+ P("first_bit", chunk_md->first_free);
P("free_bytes", chunk->free_bytes);
- P("contig_bytes", chunk->contig_bits * PCPU_MIN_ALLOC_SIZE);
+ P("contig_bytes", chunk_md->contig_hint * PCPU_MIN_ALLOC_SIZE);
P("sum_frag", sum_frag);
P("max_frag", max_frag);
P("cur_min_alloc", cur_min_alloc);