[PATCH V2] fs/9p: Use updated offset for writing

[M. Mohan Kumar]

Use the updated offset given by generic_write_checks. Without this fix,
even if a file is opened in O_APPEND mode, data will be written at current
file position instead of end of file.

Signed-off-by: M. Mohan Kumar <mohan@xxxxxxxxxx>
---
 fs/9p/vfs_file.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 6997eb6..ffed558 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -508,9 +508,12 @@ v9fs_file_write(struct file *filp, const char __user * data,
 	if (!count)
 		goto out;
 
-	return v9fs_file_write_internal(filp->f_path.dentry->d_inode,
+	retval = v9fs_file_write_internal(filp->f_path.dentry->d_inode,
 					filp->private_data,
-					data, count, offset, 1);
+					data, count, &origin, 1);
+	/* update offset on successful write */
+	if (retval > 0)
+		*offset = origin;
 out:
 	return retval;
 }
-- 
1.7.3.4

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