From: Joern Engel <joern@logfs.org>
Date: Sat, 1 May 2010 15:33:06 +0000 (+0200)
Subject: logfs: fix logfs_seek_hole()
X-Git-Tag: v2.6.35-rc1~530^2~9
X-Git-Url: http://ftp.safe.ca/?p=safe%2Fjmp%2Flinux-2.6;a=commitdiff_plain;h=bd2b3f29594c50d7c5bd864d9af05d440394ee82

logfs: fix logfs_seek_hole()

logfs_seek_hole(inode, 0x200) would crap itself if the inode contained
just 0x1ff (or fewer) blocks.

Signed-off-by: Joern Engel <joern@logfs.org>
---

diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c
index 8c663a5..e37cee3 100644
--- a/fs/logfs/readwrite.c
+++ b/fs/logfs/readwrite.c
@@ -892,6 +892,8 @@ u64 logfs_seek_hole(struct inode *inode, u64 bix)
 		return bix;
 	else if (li->li_data[INDIRECT_INDEX] & LOGFS_FULLY_POPULATED)
 		bix = maxbix(li->li_height);
+	else if (bix >= maxbix(li->li_height))
+		return bix;
 	else {
 		bix = seek_holedata_loop(inode, bix, 0);
 		if (bix < maxbix(li->li_height))