This is needed for vfh migration/replication recovery and recovering
from FHEXPIRED returned during getattr. It will be used as
a starting point for dcache traversal.
Signed-off-by: Matthew Treinish <treinish@xxxxxxxxxxxxxxxxxx>
---
fs/nfs/getroot.c | 1 +
fs/nfs/super.c | 1 +
include/linux/nfs_fs_sb.h | 1 +
3 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index 51ca63b..8d07346 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -255,6 +255,7 @@ struct dentry *nfs4_get_root(struct super_block *sb, struct nfs_fh *mntfh,
dprintk("nfs_get_root: get root dentry failed\n");
goto out;
}
+ server->rootdentry = dget(ret);
security_d_instantiate(ret, inode);
spin_lock(&ret->d_lock);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6c0be34e..0b26768 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2892,6 +2892,7 @@ static void nfs4_kill_super(struct super_block *sb)
dprintk("--> %s\n", __func__);
nfs_super_return_all_delegations(sb);
+ dput(server->rootdentry);
kill_anon_super(sb);
nfs_fscache_release_super_cookie(sb);
nfs_free_server(server);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 5993319..68155b1 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -154,6 +154,7 @@ struct nfs_server {
/* the following fields are protected by nfs_client->cl_lock */
struct rb_root state_owners;
#endif
+ struct dentry *rootdentry;
struct ida openowner_id;
struct ida lockowner_id;
struct list_head state_owners_lru;
--
1.7.4.4
--
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