[Linux-ima-devel] [PATCH 2/4] tmpfs: define integrity_read file operation method

[Mimi Z. <zo...@li...>]

Although temporary filesystems for the most part are not something
that we're interested in measuring or appraising, we do want to at least
measure, and at some point appraise, files on the rootfs.

This patch defines an integrity_read file operation method used for
calculating the file hash.

Signed-off-by: Mimi Zohar <zo...@li...>
---
 mm/shmem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/shmem.c b/mm/shmem.c
index e67d6ba4e98e..16958b20946f 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3846,6 +3846,7 @@ static const struct file_operations shmem_file_operations = {
 	.splice_read	= generic_file_splice_read,
 	.splice_write	= iter_file_splice_write,
 	.fallocate	= shmem_fallocate,
+	.integrity_read	= shmem_file_read_iter,
 #endif
 };
 
-- 
2.7.4