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| author | Dennis Zhou <dennis@kernel.org> | 2019-02-26 09:56:16 -0800 |
|---|---|---|
| committer | Dennis Zhou <dennis@kernel.org> | 2019-03-13 12:25:31 -0700 |
| commit | 047924c96898266e9a37412434abd1db72600384 (patch) | |
| tree | f77d37338673405e89644bc682e08a8f7584aa03 /mm/percpu-internal.h | |
| parent | da3afdd5bb5428fd38b4b64f2d5e897c3bb78354 (diff) | |
| download | lwn-047924c96898266e9a37412434abd1db72600384.tar.gz lwn-047924c96898266e9a37412434abd1db72600384.zip | |
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.h | 1 |
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 { |