[PATCH 11/12] fs/proc/page: clarify comment in get_max_dump_pfn()

[David Hildenbrand (Arm)]

pfn_to_online_page() will only succeed on some PFNs within the same
section, not necessarily all. Let's make that clearer.

Signed-off-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>
---
 fs/proc/page.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/proc/page.c b/fs/proc/page.c
index 260772b20bd99..6856ff3e3cf28 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -31,10 +31,9 @@ static inline unsigned long get_max_dump_pfn(void)
 {
 #ifdef CONFIG_SPARSEMEM
 	/*
-	 * The memmap of early sections is completely populated and marked
-	 * online even if max_pfn does not fall on a section boundary -
-	 * pfn_to_online_page() will succeed on all pages. Allow inspecting
-	 * these memmaps.
+	 * If max_pfn does not fall on a section boundary, pfn_to_online_page()
+	 * can succeed on PFNs beyond max_pfn within the same section. Allow
+	 * inspecting these memmaps.
 	 */
 	return round_up(max_pfn, PAGES_PER_SECTION);
 #else

-- 
2.43.0