NFSv4: Simplify _nfs4_do_access()
Currently, _nfs4_do_access() is just a copy of nfs_do_access() with added
conversion of the open flags into an access mask. This patch merges the
duplicate functionality.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index b332c52..2b5e611 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1815,7 +1815,7 @@
return NULL;
}
-int nfs_access_get_cached(struct inode *inode, struct rpc_cred *cred, struct nfs_access_entry *res)
+static int nfs_access_get_cached(struct inode *inode, struct rpc_cred *cred, struct nfs_access_entry *res)
{
struct nfs_inode *nfsi = NFS_I(inode);
struct nfs_access_entry *cache;
@@ -1882,7 +1882,7 @@
nfs_access_free_entry(entry);
}
-void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
+static void nfs_access_add_cache(struct inode *inode, struct nfs_access_entry *set)
{
struct nfs_access_entry *cache = kmalloc(sizeof(*cache), GFP_KERNEL);
if (cache == NULL)
@@ -1930,6 +1930,24 @@
return -EACCES;
}
+static int nfs_open_permission_mask(int openflags)
+{
+ int mask = 0;
+
+ if (openflags & FMODE_READ)
+ mask |= MAY_READ;
+ if (openflags & FMODE_WRITE)
+ mask |= MAY_WRITE;
+ if (openflags & FMODE_EXEC)
+ mask |= MAY_EXEC;
+ return mask;
+}
+
+int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags)
+{
+ return nfs_do_access(inode, cred, nfs_open_permission_mask(openflags));
+}
+
int nfs_permission(struct inode *inode, int mask, struct nameidata *nd)
{
struct rpc_cred *cred;