fuse: kmemcg account fs data

account per-file, dentry, and inode data

blockdev/superblock and temporary per-request data was left alone, as
this usually isn't accounted
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

fs/fuse/dir.c

@@ -279,7 +279,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 #if BITS_PER_LONG < 64
 static int fuse_dentry_init(struct dentry *dentry)
 {
-	dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL);
+	dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry),
+				   GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE);
 
 	return dentry->d_fsdata ? 0 : -ENOMEM;
 }

fs/fuse/file.c

@@ -63,12 +63,13 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
 {
 	struct fuse_file *ff;
 
-	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL);
+	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL_ACCOUNT);
 	if (unlikely(!ff))
 		return NULL;
 
 	ff->fc = fc;
-	ff->release_args = kzalloc(sizeof(*ff->release_args), GFP_KERNEL);
+	ff->release_args = kzalloc(sizeof(*ff->release_args),
+				   GFP_KERNEL_ACCOUNT);
 	if (!ff->release_args) {
 		kfree(ff);
 		return NULL;

fs/fuse/inode.c

@@ -66,7 +66,7 @@ static struct file_system_type fuseblk_fs_type;
 
 struct fuse_forget_link *fuse_alloc_forget(void)
 {
-	return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL);
+	return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL_ACCOUNT);
 }
 
 static struct inode *fuse_alloc_inode(struct super_block *sb)