[PATCH] fix xip sparse file handling in ext2
Oliver Paukstadt from our test department is testing the xip patches in
Linus' git-tree. He found a problem that shows when reading a file that
contains sparse blocks (holes) on a -o xip mounted ext2 filesystem: the
BUG_ON() in fs/ext2/xip.c:40 triggers where it should not. The problem was
introduced by a cleanup in my previous patch, this patch fixes it.
Signed-off-by: Carsten Otte <cotte@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c
index 0aa5ac159..ca7f003 100644
--- a/fs/ext2/xip.c
+++ b/fs/ext2/xip.c
@@ -36,7 +36,7 @@
*result = tmp.b_blocknr;
/* did we get a sparse block (hole in the file)? */
- if (!(*result)) {
+ if (!tmp.b_blocknr && !rc) {
BUG_ON(create);
rc = -ENODATA;
}