diff mbox series

[033/165] mm: hugetlb: fix the name of hugetlb CMA

Message ID 20200812013200.Wtnbj1Trq%akpm@linux-foundation.org (mailing list archive)
State New, archived
Headers show
Series [001/165] percpu: return number of released bytes from pcpu_free_area() | expand

Commit Message

Andrew Morton Aug. 12, 2020, 1:32 a.m. UTC 
From: Barry Song <song.bao.hua@hisilicon.com>
Subject: mm: hugetlb: fix the name of hugetlb CMA

Once we enable CMA_DEBUGFS, we will get the below errors: directory
'cma-hugetlb' with parent 'cma' already present.

We should have different names for different CMA areas.

Link: http://lkml.kernel.org/r/20200616223131.33828-3-song.bao.hua@hisilicon.com
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Acked-by: Roman Gushchin <guro@fb.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/hugetlb.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

--- a/mm/hugetlb.c~mm-hugetlb-fix-the-name-of-hugetlb-cma
+++ a/mm/hugetlb.c
@@ -5707,12 +5707,14 @@  void __init hugetlb_cma_reserve(int orde
 	reserved = 0;
 	for_each_node_state(nid, N_ONLINE) {
 		int res;
+		char name[20];
 
 		size = min(per_node, hugetlb_cma_size - reserved);
 		size = round_up(size, PAGE_SIZE << order);
 
+		snprintf(name, 20, "hugetlb%d", nid);
 		res = cma_declare_contiguous_nid(0, size, 0, PAGE_SIZE << order,
-						 0, false, "hugetlb",
+						 0, false, name,
 						 &hugetlb_cma[nid], nid);
 		if (res) {
 			pr_warn("hugetlb_cma: reservation failed: err %d, node %d",