/* area filled with zeroes, to supply as list of zero blocknumbers
                           We allocate it outside of loop just in case loop would spin for
                           several iterations. */
-                       char *zeros = kmalloc(to_paste * UNFM_P_SIZE, GFP_ATOMIC);      // We cannot insert more than MAX_ITEM_LEN bytes anyway.
+                       char *zeros = kzalloc(to_paste * UNFM_P_SIZE, GFP_ATOMIC);      // We cannot insert more than MAX_ITEM_LEN bytes anyway.
                        if (!zeros) {
                                res = -ENOMEM;
                                goto error_exit_free_blocks;
                        }
-                       memset(zeros, 0, to_paste * UNFM_P_SIZE);
                        do {
                                to_paste =
                                    min_t(__u64, hole_size,
 
                        if (blocks_needed == 1) {
                                un = &unf_single;
                        } else {
-                               un = kmalloc(min(blocks_needed, max_to_insert) * UNFM_P_SIZE, GFP_ATOMIC);      // We need to avoid scheduling.
+                               un = kzalloc(min(blocks_needed, max_to_insert) * UNFM_P_SIZE, GFP_ATOMIC);      // We need to avoid scheduling.
                                if (!un) {
                                        un = &unf_single;
                                        blocks_needed = 1;
                                        max_to_insert = 0;
-                               } else
-                                       memset(un, 0,
-                                              UNFM_P_SIZE * min(blocks_needed,
-                                                                max_to_insert));
+                               }
                        }
                        if (blocks_needed <= max_to_insert) {
                                /* we are going to add target block to the file. Use allocated
 
        struct reiserfs_sb_info *sbi;
        int errval = -EINVAL;
 
-       sbi = kmalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
+       sbi = kzalloc(sizeof(struct reiserfs_sb_info), GFP_KERNEL);
        if (!sbi) {
                errval = -ENOMEM;
                goto error;
        }
        s->s_fs_info = sbi;
-       memset(sbi, 0, sizeof(struct reiserfs_sb_info));
        /* Set default values for options: non-aggressive tails, RO on errors */
        REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_SMALLTAIL);
        REISERFS_SB(s)->s_mount_opt |= (1 << REISERFS_ERROR_RO);