Commit 3f4b57e0 authored by Anand Jain's avatar Anand Jain Committed by Chris Mason
Browse files

btrfs: use BTRFS_ATTR instead of btrfs_no_store() 



we have BTRFS_ATTR define to create sysfs RO file, use that.

Signed-off-by: default avatarAnand Jain <anand.jain@oracle.com>
Signed-off-by: default avatarChris Mason <clm@fb.com>
parent 160f4089

fs/btrfs/sysfs.c

+3 −10
Original line number Diff line number Diff line
@@ -403,13 +403,6 @@ static ssize_t btrfs_label_store(struct kobject *kobj, 
}

BTRFS_ATTR_RW(label, 0644, btrfs_label_show, btrfs_label_store);



static ssize_t btrfs_no_store(struct kobject *kobj,

				 struct kobj_attribute *a,

				 const char *buf, size_t len)

{

	return -EPERM;

}



static ssize_t btrfs_nodesize_show(struct kobject *kobj,

				struct kobj_attribute *a, char *buf)

{
@@ -418,7 +411,7 @@ static ssize_t btrfs_nodesize_show(struct kobject *kobj, 
	return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->nodesize);

}



BTRFS_ATTR_RW(nodesize, 0444, btrfs_nodesize_show, btrfs_no_store);

BTRFS_ATTR(nodesize, 0444, btrfs_nodesize_show);



static ssize_t btrfs_sectorsize_show(struct kobject *kobj,

				struct kobj_attribute *a, char *buf)
@@ -428,7 +421,7 @@ static ssize_t btrfs_sectorsize_show(struct kobject *kobj, 
	return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->sectorsize);

}



BTRFS_ATTR_RW(sectorsize, 0444, btrfs_sectorsize_show, btrfs_no_store);

BTRFS_ATTR(sectorsize, 0444, btrfs_sectorsize_show);



static ssize_t btrfs_clone_alignment_show(struct kobject *kobj,

				struct kobj_attribute *a, char *buf)
@@ -438,7 +431,7 @@ static ssize_t btrfs_clone_alignment_show(struct kobject *kobj, 
	return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->sectorsize);

}



BTRFS_ATTR_RW(clone_alignment, 0444, btrfs_clone_alignment_show, btrfs_no_store);

BTRFS_ATTR(clone_alignment, 0444, btrfs_clone_alignment_show);



static struct attribute *btrfs_attrs[] = {

	BTRFS_ATTR_PTR(label),