diff options
| -rw-r--r-- | fs/ext4/ialloc.c | 2 | ||||
| -rw-r--r-- | fs/inode.c | 4 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.c | 2 | ||||
| -rw-r--r-- | include/linux/fs.h | 28 |
4 files changed, 32 insertions, 4 deletions
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index d0dc12197346..755a68bb7e22 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -970,7 +970,7 @@ struct inode *__ext4_new_inode(struct user_namespace *mnt_userns, i_gid_write(inode, owner[1]); } else if (test_opt(sb, GRPID)) { inode->i_mode = mode; - inode->i_uid = mapped_fsuid(mnt_userns); + inode_fsuid_set(inode, mnt_userns); inode->i_gid = dir->i_gid; } else inode_init_owner(mnt_userns, inode, dir, mode); diff --git a/fs/inode.c b/fs/inode.c index 81a6a59b7dd3..21c5a620ca89 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -2148,7 +2148,7 @@ EXPORT_SYMBOL(init_special_inode); void inode_init_owner(struct user_namespace *mnt_userns, struct inode *inode, const struct inode *dir, umode_t mode) { - inode->i_uid = mapped_fsuid(mnt_userns); + inode_fsuid_set(inode, mnt_userns); if (dir && dir->i_mode & S_ISGID) { inode->i_gid = dir->i_gid; @@ -2160,7 +2160,7 @@ void inode_init_owner(struct user_namespace *mnt_userns, struct inode *inode, !capable_wrt_inode_uidgid(mnt_userns, dir, CAP_FSETID)) mode &= ~S_ISGID; } else - inode->i_gid = mapped_fsgid(mnt_userns); + inode_fsgid_set(inode, mnt_userns); inode->i_mode = mode; } EXPORT_SYMBOL(inode_init_owner); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index dc91f8c34d35..2a8bdf33e6c4 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -812,7 +812,7 @@ xfs_init_new_inode( if (dir && !(dir->i_mode & S_ISGID) && (mp->m_flags & XFS_MOUNT_GRPID)) { - inode->i_uid = mapped_fsuid(mnt_userns); + inode_fsuid_set(inode, mnt_userns); inode->i_gid = dir->i_gid; inode->i_mode = mode; } else { diff --git a/include/linux/fs.h b/include/linux/fs.h index e9e7e799425e..3eaf5f27a0e4 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1693,6 +1693,34 @@ static inline kgid_t mapped_fsgid(struct user_namespace *mnt_userns) } /** + * inode_fsuid_set - initialize inode's i_uid field with callers fsuid + * @inode: inode to initialize + * @mnt_userns: user namespace of the mount the inode was found from + * + * Initialize the i_uid field of @inode. If the inode was found/created via + * an idmapped mount map the caller's fsuid according to @mnt_users. + */ +static inline void inode_fsuid_set(struct inode *inode, + struct user_namespace *mnt_userns) +{ + inode->i_uid = mapped_fsuid(mnt_userns); +} + +/** + * inode_fsgid_set - initialize inode's i_gid field with callers fsgid + * @inode: inode to initialize + * @mnt_userns: user namespace of the mount the inode was found from + * + * Initialize the i_gid field of @inode. If the inode was found/created via + * an idmapped mount map the caller's fsgid according to @mnt_users. + */ +static inline void inode_fsgid_set(struct inode *inode, + struct user_namespace *mnt_userns) +{ + inode->i_gid = mapped_fsgid(mnt_userns); +} + +/** * fsuidgid_has_mapping() - check whether caller's fsuid/fsgid is mapped * @sb: the superblock we want a mapping in * @mnt_userns: user namespace of the relevant mount |