[V4,12/15] Hibernate: show the verification time for monitor performance

Commit Message

Chun-Yi Lee Sept. 15, 2013, 12:56 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 8a166e1..804feb6 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -2529,6 +2529,8 @@  static void snapshot_fill_sig_forward_info(int sig_check_ret)
 
 int snapshot_image_verify(void)
 {
+	struct timeval start;
+	struct timeval stop;
 	struct crypto_shash *tfm = NULL
 	struct shash_desc *desc;
 	u8 *digest = NULL;
@@ -2560,6 +2562,8 @@  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;
@@ -2580,6 +2584,9 @@  int snapshot_image_verify(void)
 	else
 		pr_info("PM: snapshot signature check SUCCESS!\n");
 
+	do_gettimeofday(&stop);
+	swsusp_show_speed(&start, &stop, nr_copy_pages, "Verified");
+
 forward_ret:
 	/* forward check result when pass or not enforce verify success */
 	if (!ret || !sig_enforced()) {