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mm/damon/core: fix commit_ops_filters by using correct nth function
damos_commit_ops_filters() incorrectly uses damos_nth_filter() which
iterates core_filters. As a result, performing a commit unintentionally
corrupts ops_filters.
Add damos_nth_ops_filter() which iterates ops_filters. Use this function
to fix issues caused by wrong iteration.
Link: https://lkml.kernel.org/r/20250810124201.15743-1-ekffu200098@gmail.com
Fixes: 3607cc590f
("mm/damon/core: support committing ops_filters") # 6.15.x
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
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@ -845,6 +845,18 @@ static struct damos_filter *damos_nth_filter(int n, struct damos *s)
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return NULL;
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}
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static struct damos_filter *damos_nth_ops_filter(int n, struct damos *s)
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{
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struct damos_filter *filter;
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int i = 0;
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damos_for_each_ops_filter(filter, s) {
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if (i++ == n)
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return filter;
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}
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return NULL;
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}
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static void damos_commit_filter_arg(
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struct damos_filter *dst, struct damos_filter *src)
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{
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@ -908,7 +920,7 @@ static int damos_commit_ops_filters(struct damos *dst, struct damos *src)
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int i = 0, j = 0;
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damos_for_each_ops_filter_safe(dst_filter, next, dst) {
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src_filter = damos_nth_filter(i++, src);
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src_filter = damos_nth_ops_filter(i++, src);
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if (src_filter)
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damos_commit_filter(dst_filter, src_filter);
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else
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