We memset this page before checking whether it's valid. But we need not memset zeroed page at all. Signed-off-by: Guo Chao <yan@xxxxxxxxxxxxxxxxxx> --- fs/ext4/super.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ad6cd8a..66a4e20 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3206,7 +3206,6 @@ int ext4_calculate_overhead(struct super_block *sb) ext4_fsblk_t overhead = 0; char *buf = (char *) get_zeroed_page(GFP_KERNEL); - memset(buf, 0, PAGE_SIZE); if (!buf) return -ENOMEM; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html