Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[sfrench/cifs-2.6.git] / fs / ext4 / mballoc.c

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index f8b27bf80acaf45a3b9ce9aa872d2bed48b2f27d..526e55358606c83a548657449907cd94eed3c155 100644 (file)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2805,8 +2805,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
        }
        len = ext4_free_group_clusters(sb, gdp) - ac->ac_b_ex.fe_len;
        ext4_free_group_clusters_set(sb, gdp, len);
-       ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh,
-                                  EXT4_BLOCKS_PER_GROUP(sb) / 8);
+       ext4_block_bitmap_csum_set(sb, ac->ac_b_ex.fe_group, gdp, bitmap_bh);
        ext4_group_desc_csum_set(sb, ac->ac_b_ex.fe_group, gdp);
 
        ext4_unlock_group(sb, ac->ac_b_ex.fe_group);
@@ -4666,8 +4665,7 @@ do_more:
 
        ret = ext4_free_group_clusters(sb, gdp) + count_clusters;
        ext4_free_group_clusters_set(sb, gdp, ret);
-       ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh,
-                                  EXT4_BLOCKS_PER_GROUP(sb) / 8);
+       ext4_block_bitmap_csum_set(sb, block_group, gdp, bitmap_bh);
        ext4_group_desc_csum_set(sb, block_group, gdp);
        ext4_unlock_group(sb, block_group);
        percpu_counter_add(&sbi->s_freeclusters_counter, count_clusters);
@@ -4811,8 +4809,7 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
        mb_free_blocks(NULL, &e4b, bit, count);
        blk_free_count = blocks_freed + ext4_free_group_clusters(sb, desc);
        ext4_free_group_clusters_set(sb, desc, blk_free_count);
-       ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh,
-                                  EXT4_BLOCKS_PER_GROUP(sb) / 8);
+       ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh);
        ext4_group_desc_csum_set(sb, block_group, desc);
        ext4_unlock_group(sb, block_group);
        percpu_counter_add(&sbi->s_freeclusters_counter,
@@ -4993,8 +4990,9 @@ int ext4_trim_fs(struct super_block *sb, struct fstrim_range *range)
        minlen = EXT4_NUM_B2C(EXT4_SB(sb),
                              range->minlen >> sb->s_blocksize_bits);
 
-       if (unlikely(minlen > EXT4_CLUSTERS_PER_GROUP(sb)) ||
-           unlikely(start >= max_blks))
+       if (minlen > EXT4_CLUSTERS_PER_GROUP(sb) ||
+           start >= max_blks ||
+           range->len < sb->s_blocksize)
                return -EINVAL;
        if (end >= max_blks)
                end = max_blks - 1;