mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
mm: cma: simplify cma_debug_show_areas()
The function opencodes for_each_clear_bitrange(). Fix that and drop most of housekeeping code. Link: https://lkml.kernel.org/r/20250719205401.399475-2-yury.norov@gmail.com Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com> Acked-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
parent
476d87d6a0
commit
77c50f9147
19
mm/cma.c
19
mm/cma.c
@ -751,8 +751,7 @@ int __init cma_declare_contiguous_nid(phys_addr_t base,
|
|||||||
|
|
||||||
static void cma_debug_show_areas(struct cma *cma)
|
static void cma_debug_show_areas(struct cma *cma)
|
||||||
{
|
{
|
||||||
unsigned long next_zero_bit, next_set_bit, nr_zero;
|
unsigned long start, end;
|
||||||
unsigned long start;
|
|
||||||
unsigned long nr_part;
|
unsigned long nr_part;
|
||||||
unsigned long nbits;
|
unsigned long nbits;
|
||||||
int r;
|
int r;
|
||||||
@ -763,22 +762,12 @@ static void cma_debug_show_areas(struct cma *cma)
|
|||||||
for (r = 0; r < cma->nranges; r++) {
|
for (r = 0; r < cma->nranges; r++) {
|
||||||
cmr = &cma->ranges[r];
|
cmr = &cma->ranges[r];
|
||||||
|
|
||||||
start = 0;
|
|
||||||
nbits = cma_bitmap_maxno(cma, cmr);
|
nbits = cma_bitmap_maxno(cma, cmr);
|
||||||
|
|
||||||
pr_info("range %d: ", r);
|
pr_info("range %d: ", r);
|
||||||
for (;;) {
|
for_each_clear_bitrange(start, end, cmr->bitmap, nbits) {
|
||||||
next_zero_bit = find_next_zero_bit(cmr->bitmap,
|
nr_part = (end - start) << cma->order_per_bit;
|
||||||
nbits, start);
|
pr_cont("%s%lu@%lu", start ? "+" : "", nr_part, start);
|
||||||
if (next_zero_bit >= nbits)
|
|
||||||
break;
|
|
||||||
next_set_bit = find_next_bit(cmr->bitmap, nbits,
|
|
||||||
next_zero_bit);
|
|
||||||
nr_zero = next_set_bit - next_zero_bit;
|
|
||||||
nr_part = nr_zero << cma->order_per_bit;
|
|
||||||
pr_cont("%s%lu@%lu", start ? "+" : "", nr_part,
|
|
||||||
next_zero_bit);
|
|
||||||
start = next_zero_bit + nr_zero;
|
|
||||||
}
|
}
|
||||||
pr_info("\n");
|
pr_info("\n");
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user