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authorChristian Brauner2023-01-13 12:49:19 +0100
committerChristian Brauner (Microsoft)2023-01-19 09:24:27 +0100
commit77435322777d8a8a08264a39111bef94e32b871b (patch)
tree1f066d80f7a23a40062c43ffd423d54564637ba0 /fs/9p
parent011e2b717b1b921d3706a9d48ff83a025563e826 (diff)
fs: port ->get_acl() 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/9p')
-rw-r--r--fs/9p/acl.c2
-rw-r--r--fs/9p/acl.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 9848a245fa6f..cfd4545f2d02 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -139,7 +139,7 @@ struct posix_acl *v9fs_iop_get_inode_acl(struct inode *inode, int type, bool rcu
}
-struct posix_acl *v9fs_iop_get_acl(struct user_namespace *mnt_userns,
+struct posix_acl *v9fs_iop_get_acl(struct mnt_idmap *idmap,
struct dentry *dentry, int type)
{
struct v9fs_session_info *v9ses;
diff --git a/fs/9p/acl.h b/fs/9p/acl.h
index 4c60a2bce5de..e0e58967d916 100644
--- a/fs/9p/acl.h
+++ b/fs/9p/acl.h
@@ -10,7 +10,7 @@
int v9fs_get_acl(struct inode *inode, struct p9_fid *fid);
struct posix_acl *v9fs_iop_get_inode_acl(struct inode *inode, int type,
bool rcu);
-struct posix_acl *v9fs_iop_get_acl(struct user_namespace *mnt_userns,
+struct posix_acl *v9fs_iop_get_acl(struct mnt_idmap *idmap,
struct dentry *dentry, int type);
int v9fs_iop_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry,
struct posix_acl *acl, int type);