Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...

[~andy/linux] / fs / sysv / itree.c

diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 90b54b438789664b555931f07b42e1d356396e07..c1a591a4725b0ba4344862f97e7ab2c72de974f6 100644 (file)
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -464,6 +464,16 @@ int sysv_prepare_chunk(struct page *page, loff_t pos, unsigned len)
        return __block_write_begin(page, pos, len, get_block);
 }
 
+static void sysv_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);
+               sysv_truncate(inode);
+       }
+}
+
 static int sysv_write_begin(struct file *file, struct address_space *mapping,
                        loff_t pos, unsigned len, unsigned flags,
                        struct page **pagep, void **fsdata)
@@ -471,11 +481,8 @@ static int sysv_write_begin(struct file *file, struct address_space *mapping,
        int ret;
 
        ret = block_write_begin(mapping, pos, len, flags, pagep, get_block);
-       if (unlikely(ret)) {
-               loff_t isize = mapping->host->i_size;
-               if (pos + len > isize)
-                       vmtruncate(mapping->host, isize);
-       }
+       if (unlikely(ret))
+               sysv_write_failed(mapping, pos + len);
 
        return ret;
 }