diff options
| author | Jeff Garzik <jeff@garzik.org> | 2006-09-12 12:03:21 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-09-12 12:03:21 -0400 |
| commit | 97148ba2235e334e57d05fa07045cf3e6629763c (patch) | |
| tree | a04504e7d4feb0dacfe1862a59abecaf99997f09 /mm/truncate.c | |
| parent | 76ff3c6e3b389a5a7692811dd456e0ff58340cac (diff) | |
| parent | 05ff0e291af086f4325bac76abad250690bbbd63 (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; } /** |