Commit 1b903446 authored by Alexander Mikhalitsyn's avatar Alexander Mikhalitsyn Committed by Ilya Dryomov
Browse files

fs: export mnt_idmap_get/mnt_idmap_put 



These helpers are required to support idmapped mounts in CephFS.

Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: default avatarAlexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com>
Reviewed-by: default avatarChristian Brauner <brauner@kernel.org>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent 522dc510

fs/mnt_idmapping.c

+2 −0
Original line number Diff line number Diff line
@@ -256,6 +256,7 @@ struct mnt_idmap *mnt_idmap_get(struct mnt_idmap *idmap) 


	return idmap;

}

EXPORT_SYMBOL_GPL(mnt_idmap_get);



/**

 * mnt_idmap_put - put a reference to an idmapping
@@ -271,3 +272,4 @@ void mnt_idmap_put(struct mnt_idmap *idmap) 
		kfree(idmap);

	}

}

EXPORT_SYMBOL_GPL(mnt_idmap_put);

include/linux/mnt_idmapping.h

+3 −0
Original line number Diff line number Diff line
@@ -115,6 +115,9 @@ static inline bool vfsgid_eq_kgid(vfsgid_t vfsgid, kgid_t kgid) 


int vfsgid_in_group_p(vfsgid_t vfsgid);



struct mnt_idmap *mnt_idmap_get(struct mnt_idmap *idmap);

void mnt_idmap_put(struct mnt_idmap *idmap);



vfsuid_t make_vfsuid(struct mnt_idmap *idmap,

		     struct user_namespace *fs_userns, kuid_t kuid);