aboutsummaryrefslogtreecommitdiffstats
path: root/net/sunrpc/rpc_pipe.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/sunrpc/rpc_pipe.c')
-rw-r--r--net/sunrpc/rpc_pipe.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 4679df5a6d50..61239a2cb786 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -480,6 +480,23 @@ static const struct dentry_operations rpc_dentry_operations = {
.d_delete = rpc_delete_dentry,
};
+/*
+ * Lookup the data. This is trivial - if the dentry didn't already
+ * exist, we know it is negative.
+ */
+static struct dentry *
+rpc_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
+{
+ if (dentry->d_name.len > NAME_MAX)
+ return ERR_PTR(-ENAMETOOLONG);
+ d_add(dentry, NULL);
+ return NULL;
+}
+
+static const struct inode_operations rpc_dir_inode_operations = {
+ .lookup = rpc_lookup,
+};
+
static struct inode *
rpc_get_inode(struct super_block *sb, umode_t mode)
{
@@ -492,7 +509,7 @@ rpc_get_inode(struct super_block *sb, umode_t mode)
switch (mode & S_IFMT) {
case S_IFDIR:
inode->i_fop = &simple_dir_operations;
- inode->i_op = &simple_dir_inode_operations;
+ inode->i_op = &rpc_dir_inode_operations;
inc_nlink(inode);
default:
break;
@@ -666,11 +683,8 @@ static struct dentry *__rpc_lookup_create_exclusive(struct dentry *parent,
if (!dentry)
return ERR_PTR(-ENOMEM);
}
- if (dentry->d_inode == NULL) {
- if (!dentry->d_op)
- d_set_d_op(dentry, &rpc_dentry_operations);
+ if (dentry->d_inode == NULL)
return dentry;
- }
dput(dentry);
return ERR_PTR(-EEXIST);
}
@@ -1117,6 +1131,7 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
sb->s_magic = RPCAUTH_GSSMAGIC;
sb->s_op = &s_ops;
+ sb->s_d_op = &rpc_dentry_operations;
sb->s_time_gran = 1;
inode = rpc_get_inode(sb, S_IFDIR | S_IRUGO | S_IXUGO);

Privacy Policy