Merge branch 'master' of /home/greg/linux/git/torvalds-2.6/

2 files changed, 10 insertions, 9 deletions

diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index b01804b..b823814 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -248,7 +248,7 @@ static void ufs_change_blocknr(struct inode *inode, unsigned int baseblk,
 
 		if (likely(cur_index != index)) {
 			page = ufs_get_locked_page(mapping, index);
-			if (IS_ERR(page))
+			if (!page || IS_ERR(page)) /* it was truncated or EIO */
 				continue;
 		} else
 			page = locked_page;
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index 337cf2c..22f820a 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -251,12 +251,12 @@ struct page *ufs_get_locked_page(struct address_space *mapping,
 {
 	struct page *page;
 
-try_again:
 	page = find_lock_page(mapping, index);
 	if (!page) {
 		page = read_cache_page(mapping, index,
 				       (filler_t*)mapping->a_ops->readpage,
 				       NULL);
+
 		if (IS_ERR(page)) {
 			printk(KERN_ERR "ufs_change_blocknr: "
 			       "read_cache_page error: ino %lu, index: %lu\n",
@@ -266,6 +266,14 @@ try_again:
 
 		lock_page(page);
 
+		if (unlikely(page->mapping == NULL)) {
+			/* Truncate got there first */
+			unlock_page(page);
+			page_cache_release(page);
+			page = NULL;
+			goto out;
+		}
+
 		if (!PageUptodate(page) || PageError(page)) {
 			unlock_page(page);
 			page_cache_release(page);
@@ -275,15 +283,8 @@ try_again:
 			       mapping->host->i_ino, index);
 
 			page = ERR_PTR(-EIO);
-			goto out;
 		}
 	}
-
-	if (unlikely(!page->mapping || !page_has_buffers(page))) {
-		unlock_page(page);
-		page_cache_release(page);
-		goto try_again;/*we really need these buffers*/
-	}
 out:
 	return page;
 }