commit e802d475bf8e5a3e0a485e926cc8bb70275246f5
author Sandeep Patil <sspatil@google.com> Mon Apr 15 08:45:27 2019 -0700
committer Sandeep Patil <sspatil@google.com> Mon Apr 15 10:12:19 2019 -0700
tree 82b7f9f92e0167ddc769b6f4cdd3f4d3def3fa68
parent 3654986ae506cd196984d634cd473dbcc8e0023b

Add visible logs about fstrim run for block based checkpoints

Bug: 120095226
Test: Tested by forcing /data/system/last-fstrim last modified time back
      2 years & manually trigger checkpoint using 'vdc checkpoint startCheckpoint 1'

Change-Id: I0cb8b6a85ae787e1ba2cdd7998a46942ca69760f
Signed-off-by: Sandeep Patil <sspatil@google.com>

Checkpoint.cpp

diff --git a/Checkpoint.cpp b/Checkpoint.cpp
index e784c91..19c1f3c 100644
--- a/Checkpoint.cpp
+++ b/Checkpoint.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "Checkpoint"
 #include "Checkpoint.h"
 #include "VoldUtil.h"
+#include "VolumeManager.h"
 
 #include <fstream>
 #include <list>
@@ -337,10 +338,14 @@
 
             struct fstrim_range range = {};
             range.len = ULLONG_MAX;
+            nsecs_t start = systemTime(SYSTEM_TIME_BOOTTIME);
             if (ioctl(fd, FITRIM, &range)) {
                 PLOG(ERROR) << "Failed to trim " << mount_rec.mount_point;
                 continue;
             }
+            nsecs_t time = systemTime(SYSTEM_TIME_BOOTTIME) - start;
+            LOG(INFO) << "Trimmed " << range.len << " bytes on " << mount_rec.mount_point << " in "
+                      << nanoseconds_to_milliseconds(time) << "ms for checkpoint";
 
             setBowState(mount_rec.blk_device, "1");
         }