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authorChristian Brauner <brauner@kernel.org>2023-01-13 12:49:12 +0100
committerChristian Brauner (Microsoft) <brauner@kernel.org>2023-01-19 09:24:25 +0100
commitb74d24f7a74ffd2d42ca883d84b7422b8d545901 (patch)
treed7dbd3114e0e1c04a1c03c894c68fdbb566fce0b /fs/vboxsf
parentfs: port ->setattr() to pass mnt_idmap (diff)
downloadlinux-b74d24f7a74ffd2d42ca883d84b7422b8d545901.tar.xz
linux-b74d24f7a74ffd2d42ca883d84b7422b8d545901.zip
fs: port ->getattr() to pass mnt_idmap
Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'fs/vboxsf')
-rw-r--r--fs/vboxsf/utils.c4
-rw-r--r--fs/vboxsf/vfsmod.h2
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/vboxsf/utils.c b/fs/vboxsf/utils.c
index 046b5a3bf314..dd0ae1188e87 100644
--- a/fs/vboxsf/utils.c
+++ b/fs/vboxsf/utils.c
@@ -231,7 +231,7 @@ int vboxsf_inode_revalidate(struct dentry *dentry)
return 0;
}
-int vboxsf_getattr(struct user_namespace *mnt_userns, const struct path *path,
+int vboxsf_getattr(struct mnt_idmap *idmap, const struct path *path,
struct kstat *kstat, u32 request_mask, unsigned int flags)
{
int err;
@@ -252,7 +252,7 @@ int vboxsf_getattr(struct user_namespace *mnt_userns, const struct path *path,
if (err)
return err;
- generic_fillattr(&init_user_ns, d_inode(dentry), kstat);
+ generic_fillattr(&nop_mnt_idmap, d_inode(dentry), kstat);
return 0;
}
diff --git a/fs/vboxsf/vfsmod.h b/fs/vboxsf/vfsmod.h
index 7de5a0a4e285..05973eb89d52 100644
--- a/fs/vboxsf/vfsmod.h
+++ b/fs/vboxsf/vfsmod.h
@@ -97,7 +97,7 @@ int vboxsf_stat(struct vboxsf_sbi *sbi, struct shfl_string *path,
struct shfl_fsobjinfo *info);
int vboxsf_stat_dentry(struct dentry *dentry, struct shfl_fsobjinfo *info);
int vboxsf_inode_revalidate(struct dentry *dentry);
-int vboxsf_getattr(struct user_namespace *mnt_userns, const struct path *path,
+int vboxsf_getattr(struct mnt_idmap *idmap, const struct path *path,
struct kstat *kstat, u32 request_mask,
unsigned int query_flags);
int vboxsf_setattr(struct mnt_idmap *idmap, struct dentry *dentry,