exec: replace call_usermodehelper_pipe with use of umh init function and resolve...

[safe/jmp/linux-2.6] / fs / hppfs / hppfs.c

diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c
index 795e2c1..2e4dfa8 100644 (file)
--- a/fs/hppfs/hppfs.c
+++ b/fs/hppfs/hppfs.c
@@ -280,7 +280,12 @@ static ssize_t hppfs_read(struct file *file, char __user *buf, size_t count,
                               "errno = %d\n", err);
                        return err;
                }
-               count = hppfs_read_file(hppfs->host_fd, buf, count);
+               err = hppfs_read_file(hppfs->host_fd, buf, count);
+               if (err < 0) {
+                       printk(KERN_ERR "hppfs_read: read failed: %d\n", err);
+                       return err;
+               }
+               count = err;
                if (count > 0)
                        *ppos += count;
        }
@@ -426,7 +431,7 @@ static int file_mode(int fmode)
 
 static int hppfs_open(struct inode *inode, struct file *file)
 {
-       const struct cred *cred = current_cred();
+       const struct cred *cred = file->f_cred;
        struct hppfs_private *data;
        struct vfsmount *proc_mnt;
        struct dentry *proc_dentry;
@@ -490,7 +495,7 @@ static int hppfs_open(struct inode *inode, struct file *file)
 
 static int hppfs_dir_open(struct inode *inode, struct file *file)
 {
-       const struct cred *cred = current_cred();
+       const struct cred *cred = file->f_cred;
        struct hppfs_private *data;
        struct vfsmount *proc_mnt;
        struct dentry *proc_dentry;
@@ -641,22 +646,27 @@ static const struct super_operations hppfs_sbops = {
 static int hppfs_readlink(struct dentry *dentry, char __user *buffer,
                          int buflen)
 {
-       struct dentry *proc_dentry;
-
-       proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
+       struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
        return proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer,
                                                    buflen);
 }
 
 static void *hppfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
-       struct dentry *proc_dentry;
-
-       proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
+       struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
 
        return proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd);
 }
 
+static void hppfs_put_link(struct dentry *dentry, struct nameidata *nd,
+                          void *cookie)
+{
+       struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
+
+       if (proc_dentry->d_inode->i_op->put_link)
+               proc_dentry->d_inode->i_op->put_link(proc_dentry, nd, cookie);
+}
+
 static const struct inode_operations hppfs_dir_iops = {
        .lookup         = hppfs_lookup,
 };
@@ -664,6 +674,7 @@ static const struct inode_operations hppfs_dir_iops = {
 static const struct inode_operations hppfs_link_iops = {
        .readlink       = hppfs_readlink,
        .follow_link    = hppfs_follow_link,
+       .put_link       = hppfs_put_link,
 };
 
 static struct inode *get_inode(struct super_block *sb, struct dentry *dentry)
@@ -707,7 +718,7 @@ static int hppfs_fill_super(struct super_block *sb, void *d, int silent)
        struct vfsmount *proc_mnt;
        int err = -ENOENT;
 
-       proc_mnt = do_kern_mount("proc", 0, "proc", NULL);
+       proc_mnt = mntget(current->nsproxy->pid_ns->proc_mnt);
        if (IS_ERR(proc_mnt))
                goto out;