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| author | Yury Norov (NVIDIA) <[email protected]> | 2025-07-19 20:54:00 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2025-07-25 02:12:36 +0000 |
| commit | c79147e4b02fa3679aebf34121b12f5097731d8a (patch) | |
| tree | dc4512713ac1863ef9a7ca9979967441a2537b6e | |
| parent | mm: cma: simplify cma_debug_show_areas() (diff) | |
| download | kernel-c79147e4b02fa3679aebf34121b12f5097731d8a.tar.gz kernel-c79147e4b02fa3679aebf34121b12f5097731d8a.zip | |
mm: cma: simplify cma_maxchunk_get()
The function opencodes for_each_clear_bitrange(). Fix that and drop most
of housekeeping code.
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yury Norov (NVIDIA) <[email protected]>
Acked-by: David Hildenbrand <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
| -rw-r--r-- | mm/cma_debug.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/mm/cma_debug.c b/mm/cma_debug.c index fdf899532ca0..8c7d7f8e8fbd 100644 --- a/mm/cma_debug.c +++ b/mm/cma_debug.c @@ -56,16 +56,8 @@ static int cma_maxchunk_get(void *data, u64 *val) for (r = 0; r < cma->nranges; r++) { cmr = &cma->ranges[r]; bitmap_maxno = cma_bitmap_maxno(cma, cmr); - end = 0; - for (;;) { - start = find_next_zero_bit(cmr->bitmap, - bitmap_maxno, end); - if (start >= bitmap_maxno) - break; - end = find_next_bit(cmr->bitmap, bitmap_maxno, - start); + for_each_clear_bitrange(start, end, cmr->bitmap, bitmap_maxno) maxchunk = max(end - start, maxchunk); - } } spin_unlock_irq(&cma->lock); *val = (u64)maxchunk << cma->order_per_bit; |