statx: AFS: Return enhanced file attributes
Return enhanced file attributes from the AFS filesystem. This includes the
following:
(1) STATX_ATTR_AUTOMOUNT will be set on automount directories by virtue of
S_AUTOMOUNT being set on the inode. These are referrals to other
volumes or other cells.
STATX_ATIME, STATX_CTIME and STATX_BLOCKS are cleared as AFS does not
support them.
Example output:
statx(/afs) = 0
results=35f
Size: 2048 IO Block: 4096 directory
Device: 00:25 Inode: 1 Links: 7
Access: (0577/dr-xrwxrwx) Uid: 100 Gid: 0
Modify: 2016-06-24 08:02:25.000000000+0100
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 86cc726..9966204 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -72,9 +72,9 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key)
inode->i_uid = vnode->status.owner;
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;
- inode->i_atime = inode->i_mtime = inode->i_ctime;
+ inode->i_mtime.tv_sec = vnode->status.mtime_server;
+ inode->i_mtime.tv_nsec = 0;
+ inode->i_atime = inode->i_ctime = inode->i_mtime;
inode->i_blocks = 0;
inode->i_generation = vnode->fid.unique;
inode->i_version = vnode->status.data_version;
@@ -375,8 +375,7 @@ int afs_validate(struct afs_vnode *vnode, struct key *key)
/*
* read the attributes of an inode
*/
-int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int afs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
{
struct inode *inode;
@@ -385,6 +384,8 @@ int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
_enter("{ ino=%lu v=%u }", inode->i_ino, inode->i_generation);
generic_fillattr(inode, stat);
+
+ stat->result_mask &= ~(STATX_ATIME | STATX_CTIME | STATX_BLOCKS);
return 0;
}
