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mm/damon/core: receive addr_unit on damon_set_region_biggest_system_ram_default()

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damon_find_biggest_system_ram() was not supporting addr_unit in the past. 
Hence, its caller, damon_set_region_biggest_system_ram_default(), was also
not supporting addr_unit.  The previous commit has updated the inner
function to support addr_unit.  There is no more reason to not support
addr_unit on damon_set_region_biggest_system_ram_default().  Rather, it
makes unnecessary inconsistency on support of addr_unit.  Update it to
receive addr_unit and handle it inside.

Link: https://lkml.kernel.org/r/20260311052927.93921-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Yang yingliang <yangyingliang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2026-03-10 22:29:24 -07:00
committed by Andrew Morton
parent b47dcc1a28
commit eabc2eddb2
4 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/linux/damon.h
View File

@@ -994,6 +994,7 @@ int damos_walk(struct damon_ctx *ctx, struct damos_walk_control *control);
int damon_set_region_biggest_system_ram_default(struct damon_target *t,
unsigned long *start, unsigned long *end,
unsigned long addr_unit,
unsigned long min_region_sz);
#endif /* CONFIG_DAMON */

7
mm/damon/core.c
View File

@@ -3110,6 +3110,7 @@ static bool damon_find_biggest_system_ram(unsigned long *start,
* @t: The monitoring target to set the region.
* @start: The pointer to the start address of the region.
* @end: The pointer to the end address of the region.
* @addr_unit: The address unit for the damon_ctx of @t.
* @min_region_sz: Minimum region size.
*
* This function sets the region of @t as requested by @start and @end. If the
@@ -3122,7 +3123,7 @@ static bool damon_find_biggest_system_ram(unsigned long *start,
*/
int damon_set_region_biggest_system_ram_default(struct damon_target *t,
unsigned long *start, unsigned long *end,
unsigned long min_region_sz)
unsigned long addr_unit, unsigned long min_region_sz)
{
struct damon_addr_range addr_range;
@@ -3130,12 +3131,12 @@ int damon_set_region_biggest_system_ram_default(struct damon_target *t,
return -EINVAL;
if (!*start && !*end &&
!damon_find_biggest_system_ram(start, end, 1))
!damon_find_biggest_system_ram(start, end, addr_unit))
return -EINVAL;
addr_range.start = *start;
addr_range.end = *end;
return damon_set_regions(t, &addr_range, 1, min_region_sz);
return damon_set_regions(t, &addr_range, addr_unit, min_region_sz);
}
/*

1
mm/damon/lru_sort.c
View File

@@ -345,6 +345,7 @@ static int damon_lru_sort_apply_parameters(void)
err = damon_set_region_biggest_system_ram_default(param_target,
&monitor_region_start,
&monitor_region_end,
param_ctx->addr_unit,
param_ctx->min_region_sz);
if (err)
goto out;

1
mm/damon/reclaim.c
View File

@@ -251,6 +251,7 @@ static int damon_reclaim_apply_parameters(void)
err = damon_set_region_biggest_system_ram_default(param_target,
&monitor_region_start,
&monitor_region_end,
param_ctx->addr_unit,
param_ctx->min_region_sz);
if (err)
goto out;