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mm/damon/paddr: use a separate function for 'DAMOS_PAGEOUT' handling

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This commit moves code for 'DAMOS_PAGEOUT' handling of the physical
address space monitoring operations set to a separate function so that its
caller, 'damon_pa_apply_scheme()', can be more easily extended for
additional DAMOS actions later.

Link: https://lkml.kernel.org/r/20220613192301.8817-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park 2022-06-13 19:22:55 +00:00 committed by akpm
parent c364f9af29
commit 0e93e8bfd0
1 changed files with 14 additions and 6 deletions
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20
mm/damon/paddr.c
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@ -204,16 +204,11 @@ static unsigned int damon_pa_check_accesses(struct damon_ctx *ctx)
return max_nr_accesses;
}
static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
struct damos *scheme)
static unsigned long damon_pa_pageout(struct damon_region *r)
{
unsigned long addr, applied;
LIST_HEAD(page_list);
if (scheme->action != DAMOS_PAGEOUT)
return 0;
for (addr = r->ar.start; addr < r->ar.end; addr += PAGE_SIZE) {
struct page *page = damon_get_page(PHYS_PFN(addr));
@ -238,6 +233,19 @@ static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
return applied * PAGE_SIZE;
}
static unsigned long damon_pa_apply_scheme(struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
struct damos *scheme)
{
switch (scheme->action) {
case DAMOS_PAGEOUT:
return damon_pa_pageout(r);
default:
break;
}
return 0;
}
static int damon_pa_scheme_score(struct damon_ctx *context,
struct damon_target *t, struct damon_region *r,
struct damos *scheme)