[PATCH] hugetlb: fix absurd HugePages_Rsvd

[pandora-kernel.git] / mm / filemap_xip.c

diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index 9cf687e..b4fd0d7 100644 (file)
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -273,7 +273,7 @@ __xip_file_write(struct file *filp, const char __user *buf,
                  size_t count, loff_t pos, loff_t *ppos)
 {
        struct address_space * mapping = filp->f_mapping;
-       struct address_space_operations *a_ops = mapping->a_ops;
+       const struct address_space_operations *a_ops = mapping->a_ops;
        struct inode    *inode = mapping->host;
        long            status = 0;
        struct page     *page;
@@ -338,7 +338,7 @@ __xip_file_write(struct file *filp, const char __user *buf,
        *ppos = pos;
        /*
         * No need to use i_size_read() here, the i_size
-        * cannot change under us because we hold i_sem.
+        * cannot change under us because we hold i_mutex.
         */
        if (pos > inode->i_size) {
                i_size_write(inode, pos);
@@ -358,7 +358,7 @@ xip_file_write(struct file *filp, const char __user *buf, size_t len,
        loff_t pos;
        ssize_t ret;
 
-       down(&inode->i_sem);
+       mutex_lock(&inode->i_mutex);
 
        if (!access_ok(VERIFY_READ, buf, len)) {
                ret=-EFAULT;
@@ -383,14 +383,14 @@ xip_file_write(struct file *filp, const char __user *buf, size_t len,
        if (ret)
                goto out_backing;
 
-       inode_update_time(inode, 1);
+       file_update_time(filp);
 
        ret = __xip_file_write (filp, buf, count, pos, ppos);
 
  out_backing:
        current->backing_dev_info = NULL;
  out_up:
-       up(&inode->i_sem);
+       mutex_unlock(&inode->i_mutex);
        return ret;
 }
 EXPORT_SYMBOL_GPL(xip_file_write);