---

yaml --- r: 242395 b: refs/heads/master c: 0ba0851 h: refs/heads/master i: 242393: 1e68562 242391: 6b77f7e v: v3
git-mirror · Mar 23, 2011 · 71ea877 · 71ea877
1 parent 970210c
commit 71ea877
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Showing 2 changed files with 9 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 65922cb5ced76ba7182e955d4aada96f93446b1a
+refs/heads/master: 0ba0851714beebb800992e5105a79dc3a4c504b0
diff --git a/trunk/fs/ext4/mballoc.c b/trunk/fs/ext4/mballoc.c
@@ -4870,10 +4870,15 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
 			break;
 		}
 
-		if (len >= EXT4_BLOCKS_PER_GROUP(sb))
-			len -= (EXT4_BLOCKS_PER_GROUP(sb) - first_block);
-		else
+		/*
+		 * For all the groups except the last one, last block will
+		 * always be EXT4_BLOCKS_PER_GROUP(sb), so we only need to
+		 * change it for the last group in which case start +
+		 * len < EXT4_BLOCKS_PER_GROUP(sb).
+		 */
+		if (first_block + len < EXT4_BLOCKS_PER_GROUP(sb))
 			last_block = first_block + len;
+		len -= last_block - first_block;
 
 		if (e4b.bd_info->bb_free >= minlen) {
 			cnt = ext4_trim_all_free(sb, &e4b, first_block,