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Date:	Fri,  3 Oct 2014 20:16:30 +0200
From:	Heinrich Schuchardt <>
To:	Alexander Viro <>
	Jan Kara <>, Eric Paris <>,
	Michael Kerrisk <>,
	John McCutchan <>,
	Robert Love <>,
	Heinrich Schuchardt <>
Subject: [PATCH 1/1] ftruncate: create FAN_MODIFY and IN_MODIFY events

The fanotify and the inotify API can be used to monitor changes of the file

System call ftruncate modifies files. Hence it should trigger the corresponding
fanotify (FAN_MODIFY) and inotify (IN_MODIFY) events.

Signed-off-by: Heinrich Schuchardt <>
 fs/open.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/open.c b/fs/open.c
index d6fd3ac..e36f26e 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -189,6 +189,8 @@ static long do_sys_ftruncate(unsigned int fd, loff_t length, int small)
 		error = security_path_truncate(&f.file->f_path);
 	if (!error)
 		error = do_truncate(dentry, length, ATTR_MTIME|ATTR_CTIME, f.file);
+	if (!error) 
+		fsnotify_modify(f.file);

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