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authorAl Viro <viro@zeniv.linux.org.uk>2011-03-11 20:08:24 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-14 16:15:28 +0300
commit73d049a40fc6269189c4e2ba6792cb5dd054883c (patch)
treea713747cd06926ad89bfa9b36ea13dd20bbc507f /fs/nfsctl.c
parent5b6ca027d85b7438c84b78a54ccdc2e53f2909cd (diff)
downloadlinux-73d049a40fc6269189c4e2ba6792cb5dd054883c.tar.xz
open-style analog of vfs_path_lookup()
new function: file_open_root(dentry, mnt, name, flags) opens the file vfs_path_lookup would arrive to. Note that name can be empty; in that case the usual requirement that dentry should be a directory is lifted. open-coded equivalents switched to it, may_open() got down exactly one caller and became static. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfsctl.c')
-rw-r--r--fs/nfsctl.c21
1 files changed, 4 insertions, 17 deletions
diff --git a/fs/nfsctl.c b/fs/nfsctl.c
index bf9cbd242ddd..124e8fcb0dd6 100644
--- a/fs/nfsctl.c
+++ b/fs/nfsctl.c
@@ -22,30 +22,17 @@
static struct file *do_open(char *name, int flags)
{
- struct nameidata nd;
struct vfsmount *mnt;
- int error;
+ struct file *file;
mnt = do_kern_mount("nfsd", 0, "nfsd", NULL);
if (IS_ERR(mnt))
return (struct file *)mnt;
- error = vfs_path_lookup(mnt->mnt_root, mnt, name, 0, &nd);
- mntput(mnt); /* drop do_kern_mount reference */
- if (error)
- return ERR_PTR(error);
-
- if (flags == O_RDWR)
- error = may_open(&nd.path, MAY_READ|MAY_WRITE, flags);
- else
- error = may_open(&nd.path, MAY_WRITE, flags);
+ file = file_open_root(mnt->mnt_root, mnt, name, flags);
- if (!error)
- return dentry_open(nd.path.dentry, nd.path.mnt, flags,
- current_cred());
-
- path_put(&nd.path);
- return ERR_PTR(error);
+ mntput(mnt); /* drop do_kern_mount reference */
+ return file;
}
static struct {