Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq

[sfrench/cifs-2.6.git] / fs / readdir.c

diff --git a/fs/readdir.c b/fs/readdir.c
index b6109329b60739197685270d833b0699d11c020d..efe52e67657719963d5ac1cd22df34e7465d4234 100644 (file)
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -4,13 +4,13 @@
  *  Copyright (C) 1995  Linus Torvalds
  */
 
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/time.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/stat.h>
 #include <linux/file.h>
-#include <linux/smp_lock.h>
 #include <linux/fs.h>
 #include <linux/dirent.h>
 #include <linux/security.h>
@@ -21,7 +21,7 @@
 
 int vfs_readdir(struct file *file, filldir_t filler, void *buf)
 {
-       struct inode *inode = file->f_dentry->d_inode;
+       struct inode *inode = file->f_path.dentry->d_inode;
        int res = -ENOTDIR;
        if (!file->f_op || !file->f_op->readdir)
                goto out;
@@ -52,7 +52,6 @@ EXPORT_SYMBOL(vfs_readdir);
  * case (the low-level handlers don't need to care about this).
  */
 #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
-#define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
 
 #ifdef __ARCH_WANT_OLD_READDIR
 
@@ -69,20 +68,24 @@ struct readdir_callback {
 };
 
 static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset,
-                     ino_t ino, unsigned int d_type)
+                     u64 ino, unsigned int d_type)
 {
        struct readdir_callback * buf = (struct readdir_callback *) __buf;
        struct old_linux_dirent __user * dirent;
+       unsigned long d_ino;
 
        if (buf->result)
                return -EINVAL;
+       d_ino = ino;
+       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+               return -EOVERFLOW;
        buf->result++;
        dirent = buf->dirent;
        if (!access_ok(VERIFY_WRITE, dirent,
                        (unsigned long)(dirent->d_name + namlen + 1) -
                                (unsigned long)dirent))
                goto efault;
-       if (    __put_user(ino, &dirent->d_ino) ||
+       if (    __put_user(d_ino, &dirent->d_ino) ||
                __put_user(offset, &dirent->d_offset) ||
                __put_user(namlen, &dirent->d_namlen) ||
                __copy_to_user(dirent->d_name, name, namlen) ||
@@ -138,22 +141,26 @@ struct getdents_callback {
 };
 
 static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
-                  ino_t ino, unsigned int d_type)
+                  u64 ino, unsigned int d_type)
 {
        struct linux_dirent __user * dirent;
        struct getdents_callback * buf = (struct getdents_callback *) __buf;
-       int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 2);
+       unsigned long d_ino;
+       int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 2, sizeof(long));
 
        buf->error = -EINVAL;   /* only used if we fail.. */
        if (reclen > buf->count)
                return -EINVAL;
+       d_ino = ino;
+       if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+               return -EOVERFLOW;
        dirent = buf->previous;
        if (dirent) {
                if (__put_user(offset, &dirent->d_off))
                        goto efault;
        }
        dirent = buf->current_dir;
-       if (__put_user(ino, &dirent->d_ino))
+       if (__put_user(d_ino, &dirent->d_ino))
                goto efault;
        if (__put_user(reclen, &dirent->d_reclen))
                goto efault;
@@ -212,8 +219,6 @@ out:
        return error;
 }
 
-#define ROUND_UP64(x) (((x)+sizeof(u64)-1) & ~(sizeof(u64)-1))
-
 struct getdents_callback64 {
        struct linux_dirent64 __user * current_dir;
        struct linux_dirent64 __user * previous;
@@ -222,11 +227,11 @@ struct getdents_callback64 {
 };
 
 static int filldir64(void * __buf, const char * name, int namlen, loff_t offset,
-                    ino_t ino, unsigned int d_type)
+                    u64 ino, unsigned int d_type)
 {
        struct linux_dirent64 __user *dirent;
        struct getdents_callback64 * buf = (struct getdents_callback64 *) __buf;
-       int reclen = ROUND_UP64(NAME_OFFSET(dirent) + namlen + 1);
+       int reclen = ALIGN(NAME_OFFSET(dirent) + namlen + 1, sizeof(u64));
 
        buf->error = -EINVAL;   /* only used if we fail.. */
        if (reclen > buf->count)