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-rw-r--r--fs/sysfs/inode.c5
-rw-r--r--fs/sysfs/mount.c4
-rw-r--r--fs/sysfs/sysfs.h1
3 files changed, 10 insertions, 0 deletions
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index c4ef945..d9262f7 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -37,6 +37,11 @@ static const struct inode_operations sysfs_inode_operations ={
.setattr = sysfs_setattr,
};
+int __init sysfs_inode_init(void)
+{
+ return bdi_init(&sysfs_backing_dev_info);
+}
+
int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
{
struct inode * inode = dentry->d_inode;
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index c76c540..7416826 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -92,6 +92,10 @@ int __init sysfs_init(void)
if (!sysfs_dir_cachep)
goto out;
+ err = sysfs_inode_init();
+ if (err)
+ goto out_err;
+
err = register_filesystem(&sysfs_fs_type);
if (!err) {
sysfs_mount = kern_mount(&sysfs_fs_type);
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index f0326f2..f841798 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -146,6 +146,7 @@ static inline void sysfs_put(struct sysfs_dirent *sd)
struct inode *sysfs_get_inode(struct sysfs_dirent *sd);
int sysfs_setattr(struct dentry *dentry, struct iattr *iattr);
int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name);
+int sysfs_inode_init(void);
/*
* file.c
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