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Subject[PATCH] device-dax: Drop register_filesystem()
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The device-dax fs is only there to allocate a common inode for each
device-node that refers to the same device by major:minor. It is
otherwise not user mountable and need not be displayed in
/proc/filesystems.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
drivers/dax/super.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index ccb22d8db3a2..3d6a9e61e358 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -615,10 +615,6 @@ static int dax_fs_init(void)
if (!dax_cache)
return -ENOMEM;

- rc = register_filesystem(&dax_fs_type);
- if (rc)
- goto err_register_fs;
-
dax_mnt = kern_mount(&dax_fs_type);
if (IS_ERR(dax_mnt)) {
rc = PTR_ERR(dax_mnt);
@@ -629,8 +625,6 @@ static int dax_fs_init(void)
return 0;

err_mount:
- unregister_filesystem(&dax_fs_type);
- err_register_fs:
kmem_cache_destroy(dax_cache);

return rc;
@@ -639,7 +633,6 @@ static int dax_fs_init(void)
static void dax_fs_exit(void)
{
kern_unmount(dax_mnt);
- unregister_filesystem(&dax_fs_type);
kmem_cache_destroy(dax_cache);
}

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