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mm: mm_init: use div64_ul() instead of do_div()

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Fixes Coccinelle/coccicheck warning reported by do_div.cocci.

Compared to do_div(), div64_ul() does not implicitly cast the divisor and
does not unnecessarily calculate the remainder.

There are no functional changes. The benefit is purely a semantic cleanup
that better communicates the intent of the division and resolves the
static analysis warning.

Signed-off-by: Giorgi Tchankvetadze <giorgitchankvetadze1997@gmail.com>
Link: https://patch.msgid.link/20260602-mm-div64-cleanup-v1-1-bf5d67d89d93@gmail.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
This commit is contained in:
Giorgi Tchankvetadze 2026-06-02 15:32:45 +04:00 committed by Mike Rapoport (Microsoft)
parent 9588076fb2
commit 00e06cb773
1 changed files with 1 additions and 1 deletions
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2
mm/mm_init.c
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@ -2412,7 +2412,7 @@ void *__init alloc_large_system_hash(const char *tablename,
/* limit allocation size to 1/16 total memory by default */
if (max == 0) {
max = ((unsigned long long)nr_all_pages << PAGE_SHIFT) >> 4;
do_div(max, bucketsize);
max = div64_ul(max, bucketsize);
}
max = min(max, 0x80000000ULL);