On Tue, Mar 09, 2021 at 04:53:42PM +0100, Christoph Hellwig wrote:

Just use the generic anon_inode file system.

Signed-off-by: Christoph Hellwig hch@lst.de arch/powerpc/platforms/pseries/cmm.c | 27 ++------------------------- 1 file changed, 2 insertions(+), 25 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c index 6d36b858b14df1..9d07e6bea7126c 100644 +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -6,6 +6,7 @@

• Author(s): Brian King (brking@linux.vnet.ibm.com),

*/

+#include <linux/anon_inodes.h> #include <linux/ctype.h> #include <linux/delay.h> #include <linux/errno.h> @@ -502,19 +503,6 @@ static struct notifier_block cmm_mem_nb = { };

#ifdef CONFIG_BALLOON_COMPACTION -static struct vfsmount *balloon_mnt;

-static int cmm_init_fs_context(struct fs_context *fc) -{

• return init_pseudo(fc, PPC_CMM_MAGIC) ? 0 : -ENOMEM;

Should we clean these unusued magic constants too?

include/uapi/linux/magic.h:#define PPC_CMM_MAGIC 0xc7571590

Jason