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authorChristian Brauner <christian.brauner@ubuntu.com>2021-01-21 14:19:43 +0100
committerChristian Brauner <christian.brauner@ubuntu.com>2021-01-24 14:27:20 +0100
commit549c7297717c32ee53f156cd949e055e601f67bb (patch)
treed096bc02f780bdee69a701952d5568f4be9972c1 /fs/coda/inode.c
parent1ab29965b30599c797266eb3b970b4e6c8de3672 (diff)
downloadlinux-549c7297717c32ee53f156cd949e055e601f67bb.tar.bz2
fs: make helpers idmap mount aware
Extend some inode methods with an additional user namespace argument. A filesystem that is aware of idmapped mounts will receive the user namespace the mount has been marked with. This can be used for additional permission checking and also to enable filesystems to translate between uids and gids if they need to. We have implemented all relevant helpers in earlier patches. As requested we simply extend the exisiting inode method instead of introducing new ones. This is a little more code churn but it's mostly mechanical and doesnt't leave us with additional inode methods. Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'fs/coda/inode.c')
-rw-r--r--fs/coda/inode.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 4d113e191cb8..d9f1bd7153df 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -251,8 +251,8 @@ static void coda_evict_inode(struct inode *inode)
coda_cache_clear_inode(inode);
}
-int coda_getattr(const struct path *path, struct kstat *stat,
- u32 request_mask, unsigned int flags)
+int coda_getattr(struct user_namespace *mnt_userns, const struct path *path,
+ struct kstat *stat, u32 request_mask, unsigned int flags)
{
int err = coda_revalidate_inode(d_inode(path->dentry));
if (!err)
@@ -260,7 +260,8 @@ int coda_getattr(const struct path *path, struct kstat *stat,
return err;
}
-int coda_setattr(struct dentry *de, struct iattr *iattr)
+int coda_setattr(struct user_namespace *mnt_userns, struct dentry *de,
+ struct iattr *iattr)
{
struct inode *inode = d_inode(de);
struct coda_vattr vattr;