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authorDennis Zhou <dennis@kernel.org>2019-02-26 20:56:16 +0300
committerDennis Zhou <dennis@kernel.org>2019-03-13 22:25:31 +0300
commit047924c96898266e9a37412434abd1db72600384 (patch)
treef77d37338673405e89644bc682e08a8f7584aa03 /mm/percpu-internal.h
parentda3afdd5bb5428fd38b4b64f2d5e897c3bb78354 (diff)
downloadlinux-047924c96898266e9a37412434abd1db72600384.tar.xz
percpu: make pcpu_block_md generic
In reality, a chunk is just a block covering a larger number of bits. The hints themselves are one in the same. Rather than maintaining the hints separately, first introduce nr_bits to genericize pcpu_block_update() to correctly maintain block->right_free. The next patch will convert chunk hints to be managed as a pcpu_block_md. Signed-off-by: Dennis Zhou <dennis@kernel.org> Reviewed-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'mm/percpu-internal.h')
-rw-r--r--mm/percpu-internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h
index ec58b244545d..119bd1119aa7 100644
--- a/mm/percpu-internal.h
+++ b/mm/percpu-internal.h
@@ -28,6 +28,7 @@ struct pcpu_block_md {
int right_free; /* size of free space along
the right side of the block */
int first_free; /* block position of first free */
+ int nr_bits; /* total bits responsible for */
};
struct pcpu_chunk {