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| author | Dennis Zhou (Facebook) <dennisszhou@gmail.com> | 2017-07-25 01:02:00 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2017-07-26 16:23:51 +0200 |
| commit | 4af1e6fbd8e46dc44a89edf215207fd7c8d5cdda (patch) | |
| tree | c550b7662c8e3c68988c42725982b42eaa91b677 | |
| parent | percpu: introduce start_offset to pcpu_chunk (diff) | |
| download | linux-4af1e6fbd8e46dc44a89edf215207fd7c8d5cdda.tar.xz linux-4af1e6fbd8e46dc44a89edf215207fd7c8d5cdda.zip | |
percpu: remove has_reserved from pcpu_chunk
Prior this variable was used to manage statistics when the first chunk
had a reserved region. The previous patch introduced start_offset to
keep track of the offset by value rather than boolean. Therefore,
has_reserved can be removed.
Signed-off-by: Dennis Zhou <dennisszhou@gmail.com>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
| -rw-r--r-- | mm/percpu-internal.h | 5 | ||||
| -rw-r--r-- | mm/percpu-stats.c | 2 | ||||
| -rw-r--r-- | mm/percpu.c | 3 |
3 files changed, 1 insertions, 9 deletions
diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h index 92fc0121dfff..c876b5b5bc18 100644 --- a/mm/percpu-internal.h +++ b/mm/percpu-internal.h @@ -23,11 +23,6 @@ struct pcpu_chunk { void *data; /* chunk data */ int first_free; /* no free below this */ bool immutable; /* no [de]population allowed */ - bool has_reserved; /* Indicates if chunk has reserved space - at the beginning. Reserved chunk will - contain reservation for static chunk. - Dynamic chunk will contain reservation - for static and reserved chunks. */ int start_offset; /* the overlap with the previous region to have a page aligned base_addr */ diff --git a/mm/percpu-stats.c b/mm/percpu-stats.c index 44e561d3ab47..32f3550ea099 100644 --- a/mm/percpu-stats.c +++ b/mm/percpu-stats.c @@ -58,7 +58,7 @@ static void chunk_map_stats(struct seq_file *m, struct pcpu_chunk *chunk, int cur_min_alloc = 0, cur_med_alloc = 0, cur_max_alloc = 0; alloc_sizes = buffer; - s_index = chunk->has_reserved ? 1 : 0; + s_index = (chunk->start_offset) ? 1 : 0; /* find last allocation */ last_alloc = -1; diff --git a/mm/percpu.c b/mm/percpu.c index e94f0d18c421..470e1a084a7c 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -727,7 +727,6 @@ static struct pcpu_chunk *pcpu_alloc_chunk(void) chunk->map[0] = 0; chunk->map[1] = pcpu_unit_size | 1; chunk->map_used = 1; - chunk->has_reserved = false; INIT_LIST_HEAD(&chunk->list); INIT_LIST_HEAD(&chunk->map_extend_list); @@ -1704,7 +1703,6 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, schunk->map[1] = schunk->start_offset; schunk->map[2] = (ai->static_size + schunk->free_size) | 1; schunk->map_used = 2; - schunk->has_reserved = true; /* init dynamic chunk if necessary */ if (dyn_size) { @@ -1724,7 +1722,6 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, dchunk->map[1] = dchunk->start_offset; dchunk->map[2] = (dchunk->start_offset + dchunk->free_size) | 1; dchunk->map_used = 2; - dchunk->has_reserved = true; } /* link the first chunk in */ |