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mm/damon/sysfs: remove region size validation

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DAMON_SYSFS validates user inputs for monitoring target regions to
disallow negative size regions.  DAMON core assumes only positive size
regions, though.  The validation is incomplete.  Fortunately
damon_set_regions(), which is eventually used by DAMON_SYSFS, does the
complete validation.  Remove the incomplete and unnecessary validation.

Link: https://lore.kernel.org/20260705155600.96555-9-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SJ Park 2026-07-05 08:55:59 -07:00 committed by Andrew Morton
parent c31ad3c6da
commit d0a5d03b77
1 changed files with 0 additions and 3 deletions
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3
mm/damon/sysfs.c
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@ -1987,9 +1987,6 @@ static int damon_sysfs_set_regions(struct damon_target *t,
struct damon_sysfs_region *sys_region =
sysfs_regions->regions_arr[i];
if (sys_region->ar.start > sys_region->ar.end)
goto out;
ranges[i].start = sys_region->ar.start;
ranges[i].end = sys_region->ar.end;
if (i == 0)