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| author | Christian Brauner <brauner@kernel.org> | 2023-01-13 14:49:22 +0300 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 11:24:28 +0300 |
| commit | 4609e1f18e19c3b302e1eb4858334bca1532f780 (patch) | |
| tree | 1e050d9bce359b0d808dc9ee9273ef2d6d2eaebc /fs/orangefs | |
| parent | 8782a9aea3ab4d697ad67d1f8ebca38a4e1c24ab (diff) | |
| download | linux-4609e1f18e19c3b302e1eb4858334bca1532f780.tar.xz | |
fs: port ->permission() 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/orangefs')
| -rw-r--r-- | fs/orangefs/inode.c | 4 | ||||
| -rw-r--r-- | fs/orangefs/orangefs-kernel.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c index 328e49857242..11e21a0e65ce 100644 --- a/fs/orangefs/inode.c +++ b/fs/orangefs/inode.c @@ -890,7 +890,7 @@ int orangefs_getattr(struct mnt_idmap *idmap, const struct path *path, return ret; } -int orangefs_permission(struct user_namespace *mnt_userns, +int orangefs_permission(struct mnt_idmap *idmap, struct inode *inode, int mask) { int ret; @@ -905,7 +905,7 @@ int orangefs_permission(struct user_namespace *mnt_userns, if (ret < 0) return ret; - return generic_permission(&init_user_ns, inode, mask); + return generic_permission(&nop_mnt_idmap, inode, mask); } int orangefs_update_time(struct inode *inode, struct timespec64 *time, int flags) diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h index f1ac4bd03c8d..ce20d3443869 100644 --- a/fs/orangefs/orangefs-kernel.h +++ b/fs/orangefs/orangefs-kernel.h @@ -367,7 +367,7 @@ int orangefs_setattr(struct mnt_idmap *, struct dentry *, struct iattr *); int orangefs_getattr(struct mnt_idmap *idmap, const struct path *path, struct kstat *stat, u32 request_mask, unsigned int flags); -int orangefs_permission(struct user_namespace *mnt_userns, +int orangefs_permission(struct mnt_idmap *idmap, struct inode *inode, int mask); int orangefs_update_time(struct inode *, struct timespec64 *, int); |