Hi When I was doing some memory-related projects, it always reported error "nonzero mapcount", but its judgment condition was that _mapcount was not equal to -1, so I felt the original string was a bit inappropriate, so I tried to update it. Signed-off-by: Rongwei Wang <rongwei.wang@xxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7a2c89b..57d7f26 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1114,7 +1114,7 @@ static const char *page_bad_reason(struct page *page, unsigned long flags) const char *bad_reason = NULL; if (unlikely(atomic_read(&page->_mapcount) != -1)) - bad_reason = "nonzero mapcount"; + bad_reason = "non-(-1) _mapcount"; if (unlikely(page->mapping != NULL)) bad_reason = "non-NULL mapping"; if (unlikely(page_ref_count(page) != 0)) -- 1.8.3.1
