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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-07-20 07:07:56 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-07-20 07:07:56 +0300 |
| commit | c39f2d9db0fd81ea20bb5cce9b3f082ca63753e2 (patch) | |
| tree | 8e80ed5601b4fb8880a2ca8e08802bc8b1f850bd /include/linux/percpu.h | |
| parent | Merge branch 'next' into for-linus (diff) | |
| parent | Input: alps - fix a mismatch between a condition check and its comment (diff) | |
Merge branch 'next' into for-linus
Prepare second round of input updates for 5.3 merge window.
Diffstat (limited to 'include/linux/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 70b7123f38c7..9909dc0e273a 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -26,16 +26,10 @@ #define PCPU_MIN_ALLOC_SHIFT 2 #define PCPU_MIN_ALLOC_SIZE (1 << PCPU_MIN_ALLOC_SHIFT) -/* number of bits per page, used to trigger a scan if blocks are > PAGE_SIZE */ -#define PCPU_BITS_PER_PAGE (PAGE_SIZE >> PCPU_MIN_ALLOC_SHIFT) - /* - * This determines the size of each metadata block. There are several subtle - * constraints around this constant. The reserved region must be a multiple of - * PCPU_BITMAP_BLOCK_SIZE. Additionally, PCPU_BITMAP_BLOCK_SIZE must be a - * multiple of PAGE_SIZE or PAGE_SIZE must be a multiple of - * PCPU_BITMAP_BLOCK_SIZE to align with the populated page map. The unit_size - * also has to be a multiple of PCPU_BITMAP_BLOCK_SIZE to ensure full blocks. + * The PCPU_BITMAP_BLOCK_SIZE must be the same size as PAGE_SIZE as the + * updating of hints is used to manage the nr_empty_pop_pages in both + * the chunk and globally. */ #define PCPU_BITMAP_BLOCK_SIZE PAGE_SIZE #define PCPU_BITMAP_BLOCK_BITS (PCPU_BITMAP_BLOCK_SIZE >> \ |