The patch titled
Subject: mm/page-writeback.c: use VM_BUG_ON_PAGE in clear_page_dirty_for_io
has been added to the -mm tree. Its filename is
mm-use-vm_bug_on_page-in-clear_page_dirty_for_io.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-use-vm_bug_on_page-in-clear_page_dirty_for_io.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-use-vm_bug_on_page-in-clear_page_dirty_for_io.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm/page-writeback.c: use VM_BUG_ON_PAGE in clear_page_dirty_for_io
Dumping the page information in this circumstance helps for debugging.
Link: http://lkml.kernel.org/r/20200318140253.6141-7-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx>
Cc: Pankaj Gupta <pankaj.gupta.linux@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page-writeback.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/page-writeback.c~mm-use-vm_bug_on_page-in-clear_page_dirty_for_io
+++ a/mm/page-writeback.c
@@ -2655,7 +2655,7 @@ int clear_page_dirty_for_io(struct page
struct address_space *mapping = page_mapping(page);
int ret = 0;
- BUG_ON(!PageLocked(page));
+ VM_BUG_ON_PAGE(!PageLocked(page), page);
if (mapping && mapping_cap_account_dirty(mapping)) {
struct inode *inode = mapping->host;
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-improve-dump_page-for-compound-pages.patch
mm-add-pagemaph-to-the-fine-documentation.patch
mm-use-vm_fault-error-code-directly.patch
mm-rename-arguments-to-find_subpage.patch
mm-check-pagetail-in-hpage_nr_pages-even-when-thp.patch
mm-optimise-find_subpage-for-thp.patch
mm-remove-config_transparent_huge_pagecache.patch
mm-use-vm_bug_on_page-in-clear_page_dirty_for_io.patch
mm-unexport-find_get_entry.patch
mm-rewrite-pagecache_get_page-documentation.patch
proc-inline-vma_stop-into-m_stop.patch
proc-remove-m_cache_vma.patch
proc-use-ppos-instead-of-m-version.patch
seq_file-remove-m-version.patch
proc-inline-m_next_vma-into-m_next.patch
