diff options
Diffstat (limited to 'mm/truncate.c')
| -rw-r--r-- | mm/truncate.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index 9bfb8e853860..bf9e2965d666 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -51,6 +51,20 @@ static inline void truncate_partial_page(struct page *page, unsigned partial) do_invalidatepage(page, partial); } +void cancel_dirty_page(struct page *page, unsigned int account_size) +{ + /* If we're cancelling the page, it had better not be mapped any more */ + if (page_mapped(page)) { + static unsigned int warncount; + + WARN_ON(++warncount < 5); + } + + if (TestClearPageDirty(page) && account_size) + task_io_account_cancelled_write(account_size); +} + + /* * If truncate cannot remove the fs-private metadata from the page, the page * becomes anonymous. It will be left on the LRU and may even be mapped into @@ -70,8 +84,8 @@ truncate_complete_page(struct address_space *mapping, struct page *page) if (PagePrivate(page)) do_invalidatepage(page, 0); - if (test_clear_page_dirty(page)) - task_io_account_cancelled_write(PAGE_CACHE_SIZE); + cancel_dirty_page(page, PAGE_CACHE_SIZE); + ClearPageUptodate(page); ClearPageMappedToDisk(page); remove_from_page_cache(page); @@ -350,7 +364,6 @@ int invalidate_inode_pages2_range(struct address_space *mapping, for (i = 0; !ret && i < pagevec_count(&pvec); i++) { struct page *page = pvec.pages[i]; pgoff_t page_index; - int was_dirty; lock_page(page); if (page->mapping != mapping) { @@ -386,12 +399,8 @@ int invalidate_inode_pages2_range(struct address_space *mapping, PAGE_CACHE_SIZE, 0); } } - was_dirty = test_clear_page_dirty(page); - if (!invalidate_complete_page2(mapping, page)) { - if (was_dirty) - set_page_dirty(page); + if (!invalidate_complete_page2(mapping, page)) ret = -EIO; - } unlock_page(page); } pagevec_release(&pvec); |