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Diffstat (limited to 'mm/percpu.c')
-rw-r--r--mm/percpu.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/mm/percpu.c b/mm/percpu.c
index 773dafea181e..657ab0821cf0 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -757,11 +757,14 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
chunk->immutable = true;
bitmap_fill(chunk->populated, chunk->nr_pages);
chunk->nr_populated = chunk->nr_pages;
+ chunk->nr_empty_pop_pages = chunk->nr_pages;
chunk->contig_hint = chunk->free_size = map_size;
if (chunk->start_offset) {
/* hide the beginning of the bitmap */
+ chunk->nr_empty_pop_pages--;
+
chunk->map[0] = 1;
chunk->map[1] = chunk->start_offset;
chunk->map_used = 1;
@@ -773,6 +776,8 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr,
if (chunk->end_offset) {
/* hide the end of the bitmap */
+ chunk->nr_empty_pop_pages--;
+
chunk->map[++chunk->map_used] = region_size | 1;
}
@@ -836,6 +841,7 @@ static void pcpu_chunk_populated(struct pcpu_chunk *chunk,
bitmap_set(chunk->populated, page_start, nr);
chunk->nr_populated += nr;
+ chunk->nr_empty_pop_pages += nr;
pcpu_nr_empty_pop_pages += nr;
}
@@ -858,6 +864,7 @@ static void pcpu_chunk_depopulated(struct pcpu_chunk *chunk,
bitmap_clear(chunk->populated, page_start, nr);
chunk->nr_populated -= nr;
+ chunk->nr_empty_pop_pages -= nr;
pcpu_nr_empty_pop_pages -= nr;
}
@@ -1782,9 +1789,7 @@ int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,
/* link the first chunk in */
pcpu_first_chunk = chunk;
- i = (pcpu_first_chunk->start_offset) ? 1 : 0;
- pcpu_nr_empty_pop_pages +=
- pcpu_count_occupied_pages(pcpu_first_chunk, i);
+ pcpu_nr_empty_pop_pages = pcpu_first_chunk->nr_empty_pop_pages;
pcpu_chunk_relocate(pcpu_first_chunk, -1);
pcpu_stats_chunk_alloc();