diff options
| author | Baoquan He <bhe@redhat.com> | 2022-10-24 16:14:33 +0800 |
|---|---|---|
| committer | Dennis Zhou <dennis@kernel.org> | 2022-11-07 22:59:18 -0800 |
| commit | 3289e0533e70aafa9fb6d128fd4452db1b8befe8 (patch) | |
| tree | a177e6e25509183d22666b5b574ea2136a04285f | |
| parent | 83d261fc9e5fb03e8c32e365ca4ee53952611a2b (diff) | |
mm/percpu.c: remove the lcm code since block size is fixed at page size
Since commit b239f7daf553 ("percpu: set PCPU_BITMAP_BLOCK_SIZE to
PAGE_SIZE"), the PCPU_BITMAP_BLOCK_SIZE has been set to page size
fixedly. So the lcm code in pcpu_alloc_first_chunk() doesn't make
sense any more, clean it up.
Signed-off-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
| -rw-r--r-- | mm/percpu.c | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index a223b3120d33..acd78da0493b 100644 --- a/mm/percpu.c +++ b/mm/percpu.c @@ -72,7 +72,6 @@ #include <linux/cpumask.h> #include <linux/memblock.h> #include <linux/err.h> -#include <linux/lcm.h> #include <linux/list.h> #include <linux/log2.h> #include <linux/mm.h> @@ -1347,7 +1346,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr, int map_size) { struct pcpu_chunk *chunk; - unsigned long aligned_addr, lcm_align; + unsigned long aligned_addr; int start_offset, offset_bits, region_size, region_bits; size_t alloc_size; @@ -1355,14 +1354,7 @@ static struct pcpu_chunk * __init pcpu_alloc_first_chunk(unsigned long tmp_addr, aligned_addr = tmp_addr & PAGE_MASK; start_offset = tmp_addr - aligned_addr; - - /* - * Align the end of the region with the LCM of PAGE_SIZE and - * PCPU_BITMAP_BLOCK_SIZE. One of these constants is a multiple of - * the other. - */ - lcm_align = lcm(PAGE_SIZE, PCPU_BITMAP_BLOCK_SIZE); - region_size = ALIGN(start_offset + map_size, lcm_align); + region_size = ALIGN(start_offset + map_size, PAGE_SIZE); /* allocate chunk */ alloc_size = struct_size(chunk, populated, |