linux-kernel - [PATCH] PM / Suspend: Fix missing KERN

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Date:   Fri, 21 Oct 2016 16:24:09 +0100
From:   Jon Hunter <jonathanh@...dia.com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
CC:     <linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Jon Hunter <jonathanh@...dia.com>
Subject: [PATCH] PM / Suspend: Fix missing KERN_CONT for suspend message

Commit 4bcc595ccd80 ("printk: reinstate KERN_CONT for printing
continuation lines") exposed a missing KERN_CONT from one of the
messages shown on entering suspend. With v4.9-rc1, the 'done.' shown
after syncing the filesystems no longer appears as a continuation but
a new message with its own timestamp.

[    9.259566] PM: Syncing filesystems ... [    9.264119] done.

Fix this by adding the KERN_CONT log level for the 'done.' part of the
message seen after syncing filesystems. While we are at it, convert
these suspend printks to pr_info and pr_cont, respectively.

Signed-off-by: Jon Hunter <jonathanh@...dia.com>
---
 kernel/power/suspend.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 1e7f5da648d9..6ccb08f57fcb 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -498,9 +498,9 @@ static int enter_state(suspend_state_t state)

 #ifndef CONFIG_SUSPEND_SKIP_SYNC
 	trace_suspend_resume(TPS("sync_filesystems"), 0, true);
-	printk(KERN_INFO "PM: Syncing filesystems ... ");
+	pr_info("PM: Syncing filesystems ... ");
 	sys_sync();
-	printk("done.\n");
+	pr_cont("done.\n");
 	trace_suspend_resume(TPS("sync_filesystems"), 0, false);
 #endif

-- 
1.9.1