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authorEric W. Biederman <ebiederm@xmission.com>2012-02-07 16:20:48 -0800
committerEric W. Biederman <ebiederm@xmission.com>2013-02-13 06:00:51 -0800
commita0a5386ac6400493cc2eb8b58583e56af0708730 (patch)
tree2c46bb450629c4ee3296857ae20d77d902554500 /fs/afs/inode.c
parentf74f70f8b10b435f5f20247e70d1d86b53a59685 (diff)
downloadlinux-a0a5386ac6400493cc2eb8b58583e56af0708730.tar.bz2
afs: Support interacting with multiple user namespaces
Modify struct afs_file_status to store owner as a kuid_t and group as a kgid_t. In xdr_decode_AFSFetchStatus as owner is now a kuid_t and group is now a kgid_t don't use the EXTRACT macro. Instead perform the work of the extract macro explicitly. Read the value with ntohl and convert it to the appropriate type with make_kuid or make_kgid. Test if the value is different from what is stored in status and update changed. Update the value in status. In xdr_encode_AFS_StoreStatus call from_kuid or from_kgid as we are computing the on the wire encoding. Initialize uids with GLOBAL_ROOT_UID instead of 0. Initialize gids with GLOBAL_ROOT_GID instead of 0. Cc: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/afs/inode.c')
-rw-r--r--fs/afs/inode.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 95cffd38239f..789bc253b5f6 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -69,7 +69,7 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
set_nlink(inode, vnode->status.nlink);
inode->i_uid = vnode->status.owner;
- inode->i_gid = 0;
+ inode->i_gid = GLOBAL_ROOT_GID;
inode->i_size = vnode->status.size;
inode->i_ctime.tv_sec = vnode->status.mtime_server;
inode->i_ctime.tv_nsec = 0;
@@ -175,8 +175,8 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name,
inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO;
inode->i_op = &afs_autocell_inode_operations;
set_nlink(inode, 2);
- inode->i_uid = 0;
- inode->i_gid = 0;
+ inode->i_uid = GLOBAL_ROOT_UID;
+ inode->i_gid = GLOBAL_ROOT_GID;
inode->i_ctime.tv_sec = get_seconds();
inode->i_ctime.tv_nsec = 0;
inode->i_atime = inode->i_mtime = inode->i_ctime;