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List:       linux-security-module
Subject:    [PATCH 16/18] Hibernate: show the verification time for monitor performance
From:       "Lee, Chun-Yi" <joeyli.kernel () gmail ! com>
Date:       2013-08-22 11:01:55
Message-ID: 1377169317-5959-17-git-send-email-jlee () suse ! com
[Download RAW message or body]

Show the verification time for monitor the performance of SHA256 and RSA
verification.

Reviewed-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
---
 kernel/power/snapshot.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 36c7157..b9c6a8a 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -2536,6 +2536,8 @@ error_mpi:
 
 int snapshot_image_verify(void)
 {
+	struct timeval start;
+	struct timeval stop;
 	struct crypto_shash *tfm;
 	struct shash_desc *desc;
 	u8 *digest;
@@ -2563,6 +2565,8 @@ int snapshot_image_verify(void)
 	desc->tfm = tfm;
 	desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
 
+	do_gettimeofday(&start);
+
 	ret = crypto_shash_init(desc);
 	if (ret < 0)
 		goto error_shash;
@@ -2581,6 +2585,9 @@ int snapshot_image_verify(void)
 	if (ret)
 		goto error_verify;
 
+	do_gettimeofday(&stop);
+	swsusp_show_speed(&start, &stop, nr_copy_pages, "Verified");
+
 	kfree(h_buf);
 	kfree(digest);
 	crypto_free_shash(tfm);
-- 
1.6.4.2

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