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Commit b19e6843 authored by Dulshani Gunawardhana's avatar Dulshani Gunawardhana Committed by Chris Mason
Browse files

btrfs: Remove redundant local zero structure 



Remove redundant local zero structure, replacing it by the kernel's
global ZERO_PAGE.

Signed-off-by: default avatarDulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: default avatarZach Brown <zab@redhat.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
Signed-off-by: default avatarChris Mason <chris.mason@fusionio.com>
parent 3c45bfc1

fs/btrfs/ioctl.c

+2 −3
Original line number Diff line number Diff line
@@ -368,9 +368,8 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) 


int btrfs_is_empty_uuid(u8 *uuid)

{

	static char empty_uuid[BTRFS_UUID_SIZE] = {0};



	return !memcmp(uuid, empty_uuid, BTRFS_UUID_SIZE);

	BUILD_BUG_ON(BTRFS_UUID_SIZE > PAGE_SIZE);

	return !memcmp(uuid, empty_zero_page, BTRFS_UUID_SIZE);

}



static noinline int create_subvol(struct inode *dir,