ocfs2: harden buffer check during mapping of page blocks
We don't want to submit buffer_new blocks for read i/o. This actually won't
happen right now because those requests during an allocating write are all nicely
aligned. It's probably a good idea to provide an explicit check though.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index b8869fd..e8d16ae 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -712,7 +712,8 @@
if (!buffer_uptodate(bh))
set_buffer_uptodate(bh);
} else if (!buffer_uptodate(bh) && !buffer_delay(bh) &&
- (block_start < from || block_end > to)) {
+ !buffer_new(bh) &&
+ (block_start < from || block_end > to)) {
ll_rw_block(READ, 1, &bh);
*wait_bh++=bh;
}