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authorMatthew Wilcox (Oracle) <willy@infradead.org>2021-06-29 05:41:07 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-29 20:53:53 +0300
commitd2f07ec052ac1a720d6f1919e3dee7d73f04d495 (patch)
treed6c0c49568697a88e1e076cf9037e38eb32f8e0f /mm
parentb19bd1c976afeefc2ebba3d4dae8a4c296dae67f (diff)
downloadlinux-d2f07ec052ac1a720d6f1919e3dee7d73f04d495.tar.xz
mm: make __dump_page static
Patch series "Constify struct page arguments". While working on various solutions to the 32-bit struct page size regression, one of the problems I found was the networking stack expects to be able to pass const struct page pointers around, and the mm doesn't provide a lot of const-friendly functions to call. The root tangle of problems is that a lot of functions call VM_BUG_ON_PAGE(), which calls dump_page(), which calls a lot of functions which don't take a const struct page (but could be const). This patch (of 6): The only caller of __dump_page() now opencodes dump_page(), so remove it as an externally visible symbol. Link: https://lkml.kernel.org/r/20210416231531.2521383-1-willy@infradead.org Link: https://lkml.kernel.org/r/20210416231531.2521383-2-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Reviewed-by: William Kucharski <william.kucharski@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/debug.c2
-rw-r--r--mm/page_alloc.c3
2 files changed, 2 insertions, 3 deletions
diff --git a/mm/debug.c b/mm/debug.c
index 0bdda8407f71..84cdcd0f7bd3 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -42,7 +42,7 @@ const struct trace_print_flags vmaflag_names[] = {
{0, NULL}
};
-void __dump_page(struct page *page, const char *reason)
+static void __dump_page(struct page *page, const char *reason)
{
struct page *head = compound_head(page);
struct address_space *mapping;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2bf03c76504b..4087340fca32 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -658,8 +658,7 @@ static void bad_page(struct page *page, const char *reason)
pr_alert("BUG: Bad page state in process %s pfn:%05lx\n",
current->comm, page_to_pfn(page));
- __dump_page(page, reason);
- dump_page_owner(page);
+ dump_page(page, reason);
print_modules();
dump_stack();