[PATCH 1/1] ftruncate: create FAN_MODIFY and IN_MODIFY events

[Heinrich Schuchardt]

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

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

Signed-off-by: Heinrich Schuchardt <xypron.glpk@xxxxxx>
---
 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);
 	sb_end_write(inode->i_sb);
 out_putf:
 	fdput(f);
-- 
2.1.0

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