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authorJ. Bruce Fields <bfields@redhat.com>2014-02-15 02:35:37 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-08-07 22:40:10 +0400
commit1a0a397e41cb1bf70cfe45fd0eeff08c7c501ec0 (patch)
treec02c59997a3849bb1bfdcc3ac371bb1e4d2f81bc /fs/ceph
parentda093a9b76efca0a7a217af538929e1ecb204466 (diff)
downloadlinux-1a0a397e41cb1bf70cfe45fd0eeff08c7c501ec0.tar.xz
dcache: d_obtain_alias callers don't all want DISCONNECTED
There are a few d_obtain_alias callers that are using it to get the root of a filesystem which may already have an alias somewhere else. This is not the same as the filehandle-lookup case, and none of them actually need DCACHE_DISCONNECTED set. It isn't really a serious problem, but it would really be clearer if we reserved DCACHE_DISCONNECTED for those cases where it's actually needed. In the btrfs case this was causing a spurious printk from nfsd/nfsfh.c:fh_verify when it found an unexpected DCACHE_DISCONNECTED dentry. Josef worked around this by unsetting DCACHE_DISCONNECTED manually in 3a0dfa6a12e "Btrfs: unset DCACHE_DISCONNECTED when mounting default subvol", and this replaces that workaround. Cc: Josef Bacik <jbacik@fb.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/ceph')
-rw-r--r--fs/ceph/super.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 06150fd745ac..f6e12377335c 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -755,7 +755,7 @@ static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,
goto out;
}
} else {
- root = d_obtain_alias(inode);
+ root = d_obtain_root(inode);
}
ceph_init_dentry(root);
dout("open_root_inode success, root dentry is %p\n", root);