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yaml --- r: 118465 b: refs/heads/master c: fa93ca1 h: refs/heads/master i: 118463: 905d151 v: v3
git-mirror · Nov 6, 2008 · 818c059 · 818c059
1 parent cd72684
commit 818c059
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Showing 2 changed files with 9 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dfc209c0064efef5590f608056a48b61a5cac09c
+refs/heads/master: fa93ca18a8b0da4e26bd9491ad144cd14d22f8ec
diff --git a/trunk/fs/fat/inode.c b/trunk/fs/fat/inode.c
@@ -199,7 +199,14 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb,
 
 static sector_t _fat_bmap(struct address_space *mapping, sector_t block)
 {
-	return generic_block_bmap(mapping, block, fat_get_block);
+	sector_t blocknr;
+
+	/* fat_get_cluster() assumes the requested blocknr isn't truncated. */
+	mutex_lock(&mapping->host->i_mutex);
+	blocknr = generic_block_bmap(mapping, block, fat_get_block);
+	mutex_unlock(&mapping->host->i_mutex);
+
+	return blocknr;
 }
 
 static const struct address_space_operations fat_aops = {