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fs: remove unused idmapping helpers

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Now that all places can deal with the new type safe helpers remove all
of the old helpers.

Reviewed-by: Seth Forshee (DigitalOcean) <sforshee@kernel.org>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2022-06-29 12:53:54 +02:00 committed by Christian Brauner (Microsoft)
parent c12db92d62
commit eb7718cdb7
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GPG key ID: 91C61BC06578DCA2
2 changed files with 0 additions and 102 deletions
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34
include/linux/fs.h
View file

@ -1612,23 +1612,6 @@ static inline void i_gid_write(struct inode *inode, gid_t gid)
inode->i_gid = make_kgid(i_user_ns(inode), gid);
}
/**
* i_uid_into_mnt - map an inode's i_uid down into a mnt_userns
* @mnt_userns: user namespace of the mount the inode was found from
* @inode: inode to map
*
* Note, this will eventually be removed completely in favor of the type-safe
* i_uid_into_vfsuid().
*
* Return: the inode's i_uid mapped down according to @mnt_userns.
* If the inode's i_uid has no mapping INVALID_UID is returned.
*/
static inline kuid_t i_uid_into_mnt(struct user_namespace *mnt_userns,
const struct inode *inode)
{
return AS_KUIDT(make_vfsuid(mnt_userns, i_user_ns(inode), inode->i_uid));
}
/**
* i_uid_into_vfsuid - map an inode's i_uid down into a mnt_userns
* @mnt_userns: user namespace of the mount the inode was found from
@ -1681,23 +1664,6 @@ static inline void i_uid_update(struct user_namespace *mnt_userns,
attr->ia_vfsuid);
}
/**
* i_gid_into_mnt - map an inode's i_gid down into a mnt_userns
* @mnt_userns: user namespace of the mount the inode was found from
* @inode: inode to map
*
* Note, this will eventually be removed completely in favor of the type-safe
* i_gid_into_vfsgid().
*
* Return: the inode's i_gid mapped down according to @mnt_userns.
* If the inode's i_gid has no mapping INVALID_GID is returned.
*/
static inline kgid_t i_gid_into_mnt(struct user_namespace *mnt_userns,
const struct inode *inode)
{
return AS_KGIDT(make_vfsgid(mnt_userns, i_user_ns(inode), inode->i_gid));
}
/**
* i_gid_into_vfsgid - map an inode's i_gid down into a mnt_userns
* @mnt_userns: user namespace of the mount the inode was found from

68
include/linux/mnt_idmapping.h
View file

@ -228,13 +228,6 @@ static inline vfsuid_t make_vfsuid(struct user_namespace *mnt_userns,
return VFSUIDT_INIT(make_kuid(mnt_userns, uid));
}
static inline kuid_t mapped_kuid_fs(struct user_namespace *mnt_userns,
struct user_namespace *fs_userns,
kuid_t kuid)
{
return AS_KUIDT(make_vfsuid(mnt_userns, fs_userns, kuid));
}
/**
* make_vfsgid - map a filesystem kgid into a mnt_userns
* @mnt_userns: the mount's idmapping
@ -273,13 +266,6 @@ static inline vfsgid_t make_vfsgid(struct user_namespace *mnt_userns,
return VFSGIDT_INIT(make_kgid(mnt_userns, gid));
}
static inline kgid_t mapped_kgid_fs(struct user_namespace *mnt_userns,
struct user_namespace *fs_userns,
kgid_t kgid)
{
return AS_KGIDT(make_vfsgid(mnt_userns, fs_userns, kgid));
}
/**
* from_vfsuid - map a vfsuid into the filesystem idmapping
* @mnt_userns: the mount's idmapping
@ -307,33 +293,6 @@ static inline kuid_t from_vfsuid(struct user_namespace *mnt_userns,
return make_kuid(fs_userns, uid);
}
/**
* mapped_kuid_user - map a user kuid into a mnt_userns
* @mnt_userns: the mount's idmapping
* @fs_userns: the filesystem's idmapping
* @kuid : kuid to be mapped
*
* Use the idmapping of @mnt_userns to remap a @kuid into @fs_userns. Use this
* function when preparing a @kuid to be written to disk or inode.
*
* If no_idmapping() determines that this is not an idmapped mount we can
* simply return @kuid unchanged.
* If initial_idmapping() tells us that the filesystem is not mounted with an
* idmapping we know the value of @kuid won't change when calling
* make_kuid() so we can simply retrieve the value via KUIDT_INIT()
* directly.
*
* Return: @kuid mapped according to @mnt_userns.
* If @kuid has no mapping in either @mnt_userns or @fs_userns INVALID_UID is
* returned.
*/
static inline kuid_t mapped_kuid_user(struct user_namespace *mnt_userns,
struct user_namespace *fs_userns,
kuid_t kuid)
{
return from_vfsuid(mnt_userns, fs_userns, VFSUIDT_INIT(kuid));
}
/**
* vfsuid_has_fsmapping - check whether a vfsuid maps into the filesystem
* @mnt_userns: the mount's idmapping
@ -399,33 +358,6 @@ static inline kgid_t from_vfsgid(struct user_namespace *mnt_userns,
return make_kgid(fs_userns, gid);
}
/**
* mapped_kgid_user - map a user kgid into a mnt_userns
* @mnt_userns: the mount's idmapping
* @fs_userns: the filesystem's idmapping
* @kgid : kgid to be mapped
*
* Use the idmapping of @mnt_userns to remap a @kgid into @fs_userns. Use this
* function when preparing a @kgid to be written to disk or inode.
*
* If no_idmapping() determines that this is not an idmapped mount we can
* simply return @kgid unchanged.
* If initial_idmapping() tells us that the filesystem is not mounted with an
* idmapping we know the value of @kgid won't change when calling
* make_kgid() so we can simply retrieve the value via KGIDT_INIT()
* directly.
*
* Return: @kgid mapped according to @mnt_userns.
* If @kgid has no mapping in either @mnt_userns or @fs_userns INVALID_GID is
* returned.
*/
static inline kgid_t mapped_kgid_user(struct user_namespace *mnt_userns,
struct user_namespace *fs_userns,
kgid_t kgid)
{
return from_vfsgid(mnt_userns, fs_userns, VFSGIDT_INIT(kgid));
}
/**
* vfsgid_has_fsmapping - check whether a vfsgid maps into the filesystem
* @mnt_userns: the mount's idmapping