Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

[firefly-linux-kernel-4.4.55.git] / fs / ntfs / file.c

diff --git a/fs/ntfs/file.c b/fs/ntfs/file.c
index 1ecf46448f858d477c040e313989cc9116315124..c5670b8d198caf5aea663b224c02e7289d572565 100644 (file)
--- a/fs/ntfs/file.c
+++ b/fs/ntfs/file.c
@@ -27,6 +27,7 @@
 #include <linux/swap.h>
 #include <linux/uio.h>
 #include <linux/writeback.h>
+#include <linux/aio.h>
 
 #include <asm/page.h>
 #include <asm/uaccess.h>
@@ -1762,6 +1763,16 @@ err_out:
        return err;
 }
 
+static void ntfs_write_failed(struct address_space *mapping, loff_t to)
+{
+       struct inode *inode = mapping->host;
+
+       if (to > inode->i_size) {
+               truncate_pagecache(inode, to, inode->i_size);
+               ntfs_truncate_vfs(inode);
+       }
+}
+
 /**
  * ntfs_file_buffered_write -
  *
@@ -2022,8 +2033,9 @@ static ssize_t ntfs_file_buffered_write(struct kiocb *iocb,
                                 * allocated space, which is not a disaster.
                                 */
                                i_size = i_size_read(vi);
-                               if (pos + bytes > i_size)
-                                       vmtruncate(vi, i_size);
+                               if (pos + bytes > i_size) {
+                                       ntfs_write_failed(mapping, pos + bytes);
+                               }
                                break;
                        }
                }
@@ -2118,7 +2130,6 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 
        BUG_ON(iocb->ki_pos != pos);
 
-       sb_start_write(inode->i_sb);
        mutex_lock(&inode->i_mutex);
        ret = ntfs_file_aio_write_nolock(iocb, iov, nr_segs, &iocb->ki_pos);
        mutex_unlock(&inode->i_mutex);
@@ -2127,7 +2138,6 @@ static ssize_t ntfs_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
                if (err < 0)
                        ret = err;
        }
-       sb_end_write(inode->i_sb);
        return ret;
 }
 
@@ -2227,7 +2237,6 @@ const struct file_operations ntfs_file_ops = {
 
 const struct inode_operations ntfs_file_inode_ops = {
 #ifdef NTFS_RW
-       .truncate       = ntfs_truncate_vfs,
        .setattr        = ntfs_setattr,
 #endif /* NTFS_RW */
 };