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Revert "samples/damon/mtier: error out for zero quota goal target values"

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This reverts commit a16fd3ad9d.

The commit was made to avoid zero damos quota goal target value, because
it can trigger division-by-zero.  Now the core layer handles the corner
case.  It returns an error for any attempt setting the aero target_value. 
The corner case handling in DAMON_SAMPLE_MTIER is hence no more needed. 
Remove it.

Link: https://lore.kernel.org/20260903010722.94244-4-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 2026-09-02 18:07:21 -07:00 committed by Andrew Morton
parent dd07497616
commit f305464862
1 changed files with 0 additions and 3 deletions
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3
samples/damon/mtier.c
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@ -161,9 +161,6 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote)
if (!scheme)
goto free_out;
damon_set_schemes(ctx, &scheme, 1);
/* zero target value causes division by zero in damos_quota_store() */
if (!node0_mem_used_bp || !node0_mem_free_bp)
goto free_out;
quota_goal = damos_new_quota_goal(
promote ? DAMOS_QUOTA_NODE_MEM_USED_BP :
DAMOS_QUOTA_NODE_MEM_FREE_BP,