diff options
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index dd73d29c15a8..bba82c414ba8 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1149,6 +1149,13 @@ int redirty_page_for_writepage(struct writeback_control *wbc, struct page *page) EXPORT_SYMBOL(redirty_page_for_writepage); /* + * Dirty a page. + * + * For pages with a mapping this should be done under the page lock + * for the benefit of asynchronous memory errors who prefer a consistent + * dirty state. This rule can be broken in some special cases, + * but should be better not to. + * * If the mapping doesn't provide a set_page_dirty a_op, then * just fall through and assume that it wants buffer_heads. */ |