[XFS] Compat ioctl handler for handle operations

[linux-2.6-omap-h63xx.git] / fs / ecryptfs / file.c

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index bd969adf70d72bd8cc5335e3f8a47e06c220be52..94f456fe4d9b70487686a707b9954d49895a3fb4 100644 (file)
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -28,68 +28,10 @@
 #include <linux/mount.h>
 #include <linux/pagemap.h>
 #include <linux/security.h>
-#include <linux/smp_lock.h>
 #include <linux/compat.h>
 #include <linux/fs_stack.h>
 #include "ecryptfs_kernel.h"
 
-/**
- * ecryptfs_llseek
- * @file: File we are seeking in
- * @offset: The offset to seek to
- * @origin: 2 - offset from i_size; 1 - offset from f_pos
- *
- * Returns the position we have seeked to, or negative on error
- */
-static loff_t ecryptfs_llseek(struct file *file, loff_t offset, int origin)
-{
-       loff_t rv;
-       loff_t new_end_pos;
-       int rc;
-       int expanding_file = 0;
-       struct inode *inode = file->f_mapping->host;
-
-       /* If our offset is past the end of our file, we're going to
-        * need to grow it so we have a valid length of 0's */
-       new_end_pos = offset;
-       switch (origin) {
-       case 2:
-               new_end_pos += i_size_read(inode);
-               expanding_file = 1;
-               break;
-       case 1:
-               new_end_pos += file->f_pos;
-               if (new_end_pos > i_size_read(inode)) {
-                       ecryptfs_printk(KERN_DEBUG, "new_end_pos(=[0x%.16x]) "
-                                       "> i_size_read(inode)(=[0x%.16x])\n",
-                                       new_end_pos, i_size_read(inode));
-                       expanding_file = 1;
-               }
-               break;
-       default:
-               if (new_end_pos > i_size_read(inode)) {
-                       ecryptfs_printk(KERN_DEBUG, "new_end_pos(=[0x%.16x]) "
-                                       "> i_size_read(inode)(=[0x%.16x])\n",
-                                       new_end_pos, i_size_read(inode));
-                       expanding_file = 1;
-               }
-       }
-       ecryptfs_printk(KERN_DEBUG, "new_end_pos = [0x%.16x]\n", new_end_pos);
-       if (expanding_file) {
-               rc = ecryptfs_truncate(file->f_path.dentry, new_end_pos);
-               if (rc) {
-                       rv = rc;
-                       ecryptfs_printk(KERN_ERR, "Error on attempt to "
-                                       "truncate to (higher) offset [0x%.16x];"
-                                       " rc = [%d]\n", new_end_pos, rc);
-                       goto out;
-               }
-       }
-       rv = generic_file_llseek(file, offset, origin);
-out:
-       return rv;
-}
-
 /**
  * ecryptfs_read_update_atime
  *
@@ -205,6 +147,7 @@ int ecryptfs_open_lower_file(struct file **lower_file,
 {
        int rc = 0;
 
+       flags |= O_LARGEFILE;
        dget(lower_dentry);
        mntget(lower_mnt);
        *lower_file = dentry_open(lower_dentry, lower_mnt, flags);
@@ -395,16 +338,17 @@ static int ecryptfs_fasync(int fd, struct file *file, int flag)
        return rc;
 }
 
-static ssize_t ecryptfs_sendfile(struct file *file, loff_t * ppos,
-                                size_t count, read_actor_t actor, void *target)
+static ssize_t ecryptfs_splice_read(struct file *file, loff_t * ppos,
+                                   struct pipe_inode_info *pipe, size_t count,
+                                   unsigned int flags)
 {
        struct file *lower_file = NULL;
        int rc = -EINVAL;
 
        lower_file = ecryptfs_file_to_lower(file);
-       if (lower_file->f_op && lower_file->f_op->sendfile)
-               rc = lower_file->f_op->sendfile(lower_file, ppos, count,
-                                               actor, target);
+       if (lower_file->f_op && lower_file->f_op->splice_read)
+               rc = lower_file->f_op->splice_read(lower_file, ppos, pipe,
+                                               count, flags);
 
        return rc;
 }
@@ -421,11 +365,11 @@ const struct file_operations ecryptfs_dir_fops = {
        .release = ecryptfs_release,
        .fsync = ecryptfs_fsync,
        .fasync = ecryptfs_fasync,
-       .sendfile = ecryptfs_sendfile,
+       .splice_read = ecryptfs_splice_read,
 };
 
 const struct file_operations ecryptfs_main_fops = {
-       .llseek = ecryptfs_llseek,
+       .llseek = generic_file_llseek,
        .read = do_sync_read,
        .aio_read = ecryptfs_read_update_atime,
        .write = do_sync_write,
@@ -438,7 +382,7 @@ const struct file_operations ecryptfs_main_fops = {
        .release = ecryptfs_release,
        .fsync = ecryptfs_fsync,
        .fasync = ecryptfs_fasync,
-       .sendfile = ecryptfs_sendfile,
+       .splice_read = ecryptfs_splice_read,
 };
 
 static int