tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
1
fork

Configure Feed

Select the types of activity you want to include in your feed.

mm/debug_page_alloc: improve error message for invalid guardpage minorder

When an invalid debug_guardpage_minorder value is provided, include the
user input in the error message. This helps users and developers diagnose
configuration issues more easily.

No functional change.

Link: https://lkml.kernel.org/r/20250427100442.958352-3-ye.liu@linux.dev
Signed-off-by: Ye Liu <liuye@kylinos.cn>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

authored by

Ye Liu and committed by
Andrew Morton 4048774e b94bff76

+1 -1
+1 -1
mm/debug_page_alloc.c
··· 23 23 unsigned long res; 24 24 25 25 if (kstrtoul(buf, 10, &res) < 0 || res > MAX_PAGE_ORDER / 2) { 26 - pr_err("Bad debug_guardpage_minorder value\n"); 26 + pr_err("Bad debug_guardpage_minorder value: %s\n", buf); 27 27 return 0; 28 28 } 29 29 _debug_guardpage_minorder = res;