[16/18] Hibernate: show the verification time for monitor performance

Commit Message

Chun-Yi Lee Aug. 22, 2013, 11:01 a.m. UTC

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

Reviewed-by: Jiri Kosina <[e-mail]>
Signed-off-by: Lee, Chun-Yi <[e-mail]>
---
 kernel/power/snapshot.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

Patch

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);