mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

mm/damon/vaddr: remove swap_ranges() and replace it with swap() 

Remove 'swap_ranges()' and replace it with the macro 'swap()' defined in
'include/linux/minmax.h' to simplify code and improve efficiency

Link: https://lkml.kernel.org/r/20211111115355.2808-1-hanyihao@vivo.com
Signed-off-by: Yihao Han <hanyihao@vivo.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Yihao Han 2022-01-14 14:09:47 -08:00 committed by Linus Torvalds
parent cdeed009f3
commit 8bd0b9da03
1 changed files with 3 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
mm/damon/vaddr.c
View File

@ -98,16 +98,6 @@ static unsigned long sz_range(struct damon_addr_range *r)
return r->end - r->start; return r->end - r->start;
} }
static void swap_ranges(struct damon_addr_range *r1,
struct damon_addr_range *r2)
{
struct damon_addr_range tmp;
tmp = *r1;
*r1 = *r2;
*r2 = tmp;
}
/* /*
* Find three regions separated by two biggest unmapped regions * Find three regions separated by two biggest unmapped regions
* *
@ -146,9 +136,9 @@ static int __damon_va_three_regions(struct vm_area_struct *vma,
gap.start = last_vma->vm_end; gap.start = last_vma->vm_end;
gap.end = vma->vm_start; gap.end = vma->vm_start;
if (sz_range(&gap) > sz_range(&second_gap)) { if (sz_range(&gap) > sz_range(&second_gap)) {
swap_ranges(&gap, &second_gap); swap(gap, second_gap);
if (sz_range(&second_gap) > sz_range(&first_gap)) if (sz_range(&second_gap) > sz_range(&first_gap))
swap_ranges(&second_gap, &first_gap); swap(second_gap, first_gap);
} }
next: next:
last_vma = vma; last_vma = vma;
@ -159,7 +149,7 @@ next:
/* Sort the two biggest gaps by address */ /* Sort the two biggest gaps by address */
if (first_gap.start > second_gap.start) if (first_gap.start > second_gap.start)
swap_ranges(&first_gap, &second_gap); swap(first_gap, second_gap);
/* Store the result */ /* Store the result */
regions[0].start = ALIGN(start, DAMON_MIN_REGION); regions[0].start = ALIGN(start, DAMON_MIN_REGION);