libfs: use generic_file_llseek for simple_attr

Simple attribute files need to be seekable to
allow resetting the file for another read.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 76041b6..c8effc8 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2450,6 +2450,7 @@ static const struct file_operations __fops = {                            \
        .release = simple_attr_release,                                 \
        .read    = simple_attr_read,                                    \
        .write   = simple_attr_write,                                   \
+       .llseek  = generic_file_llseek,                                 \
 };
 
 static inline void __attribute__((format(printf, 1, 2)))