Return the delegation when deleting sillyrenamed files

Add a callback to return the delegation in order to allow generic NFS
code to return the delegation when appropriate.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Lance Shelton <lance.shelton@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index cab6c73..1566163 100644 (file)
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -984,6 +984,13 @@ static int nfs3_have_delegation(struct inode *inode, fmode_t type, int flags)
        return 0;
 }
 
+static int nfs3_return_delegation(struct inode *inode)
+{
+       if (S_ISREG(inode->i_mode))
+               nfs_wb_all(inode);
+       return 0;
+}
+
 static const struct inode_operations nfs3_dir_inode_operations = {
        .create         = nfs_create,
        .atomic_open    = nfs_atomic_open_v23,
@@ -1062,6 +1069,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
        .clear_acl_cache = forget_all_cached_acls,
        .close_context  = nfs_close_context,
        .have_delegation = nfs3_have_delegation,
+       .return_delegation = nfs3_return_delegation,
        .alloc_client   = nfs_alloc_client,
        .init_client    = nfs_init_client,
        .free_client    = nfs_free_client,

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b137657..9376b50 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -10871,6 +10871,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
        .close_context  = nfs4_close_context,
        .open_context   = nfs4_atomic_open,
        .have_delegation = nfs4_have_delegation,
+       .return_delegation = nfs4_inode_return_delegation,
        .alloc_client   = nfs4_alloc_client,
        .init_client    = nfs4_init_client,
        .free_client    = nfs4_free_client,

diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 995cc42..6c09cd0 100644 (file)
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -692,6 +692,13 @@ static int nfs_have_delegation(struct inode *inode, fmode_t type, int flags)
        return 0;
 }
 
+static int nfs_return_delegation(struct inode *inode)
+{
+       if (S_ISREG(inode->i_mode))
+               nfs_wb_all(inode);
+       return 0;
+}
+
 static const struct inode_operations nfs_dir_inode_operations = {
        .create         = nfs_create,
        .lookup         = nfs_lookup,
@@ -757,6 +764,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
        .lock_check_bounds = nfs_lock_check_bounds,
        .close_context  = nfs_close_context,
        .have_delegation = nfs_have_delegation,
+       .return_delegation = nfs_return_delegation,
        .alloc_client   = nfs_alloc_client,
        .init_client    = nfs_init_client,
        .free_client    = nfs_free_client,

diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index 0110299..bf77399 100644 (file)
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -232,6 +232,8 @@ nfs_complete_unlink(struct dentry *dentry, struct inode *inode)
        dentry->d_fsdata = NULL;
        spin_unlock(&dentry->d_lock);
 
+       NFS_PROTO(inode)->return_delegation(inode);
+
        if (NFS_STALE(inode) || !nfs_call_unlink(dentry, inode, data))
                nfs_free_unlinkdata(data);
 }

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index af510a7..01efaca 100644 (file)
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1840,6 +1840,7 @@ struct nfs_rpc_ops {
                                struct iattr *iattr,
                                int *);
        int (*have_delegation)(struct inode *, fmode_t, int);
+       int (*return_delegation)(struct inode *);
        struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
        struct nfs_client *(*init_client) (struct nfs_client *,
                                const struct nfs_client_initdata *);