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authorDennis Zhou (Facebook) <dennisszhou@gmail.com>2017-07-25 02:02:13 +0300
committerTejun Heo <tj@kernel.org>2017-07-27 00:41:05 +0300
commit86b442fbce74d6cd0805410ef228776cbd0338d7 (patch)
tree1d1fb3282d54d73cc47c0ba7f8a09a9050db23ae /mm/percpu-internal.h
parentca460b3c96274d79f84b31a3fea23a6eed479917 (diff)
downloadlinux-86b442fbce74d6cd0805410ef228776cbd0338d7.tar.xz
percpu: add first_bit to keep track of the first free in the bitmap
This patch adds first_bit to keep track of the first free bit in the bitmap. This hint helps prevent scanning of fully allocated blocks. Signed-off-by: Dennis Zhou <dennisszhou@gmail.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'mm/percpu-internal.h')
-rw-r--r--mm/percpu-internal.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h
index 252ae9e960e0..e60e04966d96 100644
--- a/mm/percpu-internal.h
+++ b/mm/percpu-internal.h
@@ -36,7 +36,7 @@ struct pcpu_chunk {
struct pcpu_block_md *md_blocks; /* metadata blocks */
void *data; /* chunk data */
- int first_free; /* no free below this */
+ int first_bit; /* no free below this */
bool immutable; /* no [de]population allowed */
int start_offset; /* the overlap with the previous
region to have a page aligned