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| author | Jeff Garzik <jeff@garzik.org> | 2006-09-11 09:05:33 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-09-11 09:05:33 -0400 |
| commit | 10e299fc6d596f4e8476d24ebba1495a8355baff (patch) | |
| tree | f7517eccba4dfc223113961c64429f3986afa8eb /mm/truncate.c | |
| parent | cff93eb3d3244cc117a5204fe1d62102b506afb9 (diff) | |
| parent | 38f5745c5a90641079fd5b48600ae63f7ab6edcd (diff) | |
Merge branch 'master' into upstream
Diffstat (limited to 'mm/truncate.c')
| -rw-r--r-- | mm/truncate.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/mm/truncate.c b/mm/truncate.c index cf1b015df4a..c6ab55ec688 100644 --- a/mm/truncate.c +++ b/mm/truncate.c @@ -68,10 +68,10 @@ invalidate_complete_page(struct address_space *mapping, struct page *page) return 0; write_lock_irq(&mapping->tree_lock); - if (PageDirty(page)) { - write_unlock_irq(&mapping->tree_lock); - return 0; - } + if (PageDirty(page)) + goto failed; + if (page_count(page) != 2) /* caller's ref + pagecache ref */ + goto failed; BUG_ON(PagePrivate(page)); __remove_from_page_cache(page); @@ -79,6 +79,9 @@ invalidate_complete_page(struct address_space *mapping, struct page *page) ClearPageUptodate(page); page_cache_release(page); /* pagecache ref */ return 1; +failed: + write_unlock_irq(&mapping->tree_lock); + return 0; } /** |