udf: remove redundant tests on unsigned
Roel Kluin [Mon, 22 Jun 2009 21:12:29 +0000 (23:12 +0200)]
first_block and goal are unsigned. When negative they are wrapped and caught by
the other test.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>

fs/udf/balloc.c

index e48e9a3..1e06853 100644 (file)
@@ -238,7 +238,7 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
 
        mutex_lock(&sbi->s_alloc_mutex);
        part_len = sbi->s_partmaps[partition].s_partition_len;
-       if (first_block < 0 || first_block >= part_len)
+       if (first_block >= part_len)
                goto out;
 
        if (first_block + block_count > part_len)
@@ -297,7 +297,7 @@ static int udf_bitmap_new_block(struct super_block *sb,
        mutex_lock(&sbi->s_alloc_mutex);
 
 repeat:
-       if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
+       if (goal >= sbi->s_partmaps[partition].s_partition_len)
                goal = 0;
 
        nr_groups = bitmap->s_nr_groups;
@@ -666,8 +666,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
        int8_t etype = -1;
        struct udf_inode_info *iinfo;
 
-       if (first_block < 0 ||
-               first_block >= sbi->s_partmaps[partition].s_partition_len)
+       if (first_block >= sbi->s_partmaps[partition].s_partition_len)
                return 0;
 
        iinfo = UDF_I(table);
@@ -743,7 +742,7 @@ static int udf_table_new_block(struct super_block *sb,
                return newblock;
 
        mutex_lock(&sbi->s_alloc_mutex);
-       if (goal < 0 || goal >= sbi->s_partmaps[partition].s_partition_len)
+       if (goal >= sbi->s_partmaps[partition].s_partition_len)
                goal = 0;
 
        /* We search for the closest matching block to goal. If we find