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| author |   Christian Brauner <brauner@kernel.org> | 2023-01-13 12:49:33 +0100 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 09:24:30 +0100 |
| commit | 3707d84c13670bf09b4a9a4dc6733326d8344b31 (patch) | |
| tree | a9aff073688334783a6e3d17f4789b9c24b81c43 /fs/internal.h | |
| parent | fs: port vfs{g,u}id helpers to mnt_idmap (diff) | |
| download | wireguard-linux-3707d84c13670bf09b4a9a4dc6733326d8344b31.tar.xz wireguard-linux-3707d84c13670bf09b4a9a4dc6733326d8344b31.zip | |
fs: move mnt_idmap
Now that we converted everything to just rely on struct mnt_idmap move it all
into a separate file. This ensure that no code can poke around in struct
mnt_idmap without any dedicated helpers and makes it easier to extend it in the
future. Filesystems will now not be able to conflate mount and filesystem
idmappings as they are two distinct types and require distinct helpers that
cannot be used interchangeably. We are now also able to extend struct mnt_idmap
as we see fit.
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/internal.h')
| -rw-r--r-- | fs/internal.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/internal.h b/fs/internal.h index 9ac38b411679..766e8a554b2c 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -14,9 +14,9 @@ struct path; struct mount; struct shrink_control; struct fs_context; -struct user_namespace; struct pipe_inode_info; struct iov_iter; +struct mnt_idmap; /* * block/bdev.c @@ -263,3 +263,6 @@ ssize_t __kernel_write_iter(struct file *file, struct iov_iter *from, loff_t *po */ int setattr_should_drop_sgid(struct mnt_idmap *idmap, const struct inode *inode); +struct mnt_idmap *alloc_mnt_idmap(struct user_namespace *mnt_userns); +struct mnt_idmap *mnt_idmap_get(struct mnt_idmap *idmap); +void mnt_idmap_put(struct mnt_idmap *idmap); |