diff options
Diffstat (limited to 'mm/page-writeback.c')
| -rw-r--r-- | mm/page-writeback.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c index d9c42d38ee47..7326b54ab728 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -2764,7 +2764,7 @@ int test_clear_page_writeback(struct page *page) int __test_set_page_writeback(struct page *page, bool keep_write) { struct address_space *mapping = page_mapping(page); - int ret; + int ret, access_ret; lock_page_memcg(page); if (mapping && mapping_use_writeback_tags(mapping)) { @@ -2807,6 +2807,13 @@ int __test_set_page_writeback(struct page *page, bool keep_write) inc_zone_page_state(page, NR_ZONE_WRITE_PENDING); } unlock_page_memcg(page); + access_ret = arch_make_page_accessible(page); + /* + * If writeback has been triggered on a page that cannot be made + * accessible, it is too late to recover here. + */ + VM_BUG_ON_PAGE(access_ret != 0, page); + return ret; } |