diff --git a/logcat/logpersist b/logcat/logpersist
index e9982e2..f0e7d42 100755
--- a/logcat/logpersist
+++ b/logcat/logpersist
@@ -17,6 +17,7 @@
    ;;
 esac
 
+log_tag_property=persist.log.tag
 data=/data/misc/logd
 service=logcatd
 size_default=256
@@ -65,6 +66,9 @@
   exit 1
 fi
 
+log_tag="`getprop ${log_tag_property}`"
+logd_logpersistd="`getprop ${property}`"
+
 case ${progname} in
 *.cat)
   if [ -n "${size}${buffer}" -o "true" = "${clear}" ]; then
@@ -123,6 +127,12 @@
   while [ "clear" = "`getprop ${property#persist.}`" ]; do
     continue
   done
+  # Tell Settings that we are back on again if we turned logging off
+  tag="${log_tag#Settings}"
+  if [ X"${log_tag}" != X"${tag}" ]; then
+    echo "WARNING: enabling logd service" >&2
+    setprop ${log_tag_property} "${tag#,}"
+  fi
   # ${service}.rc does the heavy lifting with the following trigger
   setprop ${property} ${service}
   # 20ms done, to permit process feedback check
@@ -158,3 +168,9 @@
   echo "ERROR: Unexpected command ${0##*/} ${args}" >&2
   exit 1
 esac
+
+if [ X"${log_tag}" != X"`getprop ${log_tag_property}`" ] ||
+   [ X"${logd_logpersistd}" != X"`getprop ${property}`" ]; then
+  echo "WARNING: killing Settings" >&2
+  am force-stop com.android.settings
+fi
diff --git a/sdcard/fuse.cpp b/sdcard/fuse.cpp
index 9b1b190..03ca4dc 100644
--- a/sdcard/fuse.cpp
+++ b/sdcard/fuse.cpp
@@ -18,6 +18,8 @@
 
 #include "fuse.h"
 
+#include <android-base/logging.h>
+
 #define FUSE_UNKNOWN_INO 0xffffffff
 
 /* Pseudo-error constant used to indicate that no fuse status is needed
@@ -573,8 +575,8 @@
     pthread_mutex_lock(&fuse->global->lock);
     parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
             parent_path, sizeof(parent_path));
-    TRACE("[%d] LOOKUP %s @ %" PRIx64 " (%s)\n", handler->token, name, hdr->nodeid,
-        parent_node ? parent_node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] LOOKUP " << name << " @ " << hdr->nodeid
+               << " (" << (parent_node ? parent_node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!parent_node || !(actual_name = find_file_within(parent_path, name,
@@ -595,8 +597,9 @@
 
     pthread_mutex_lock(&fuse->global->lock);
     node = lookup_node_by_id_locked(fuse, hdr->nodeid);
-    TRACE("[%d] FORGET #%" PRIu64 " @ %" PRIx64 " (%s)\n", handler->token, req->nlookup,
-            hdr->nodeid, node ? node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] FORGET #" << req->nlookup
+               << " @ " << std::hex << hdr->nodeid
+               << " (" << (node ? node->name : "?") << ")";
     if (node) {
         __u64 n = req->nlookup;
         while (n) {
@@ -616,8 +619,9 @@
 
     pthread_mutex_lock(&fuse->global->lock);
     node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
-    TRACE("[%d] GETATTR flags=%x fh=%" PRIx64 " @ %" PRIx64 " (%s)\n", handler->token,
-            req->getattr_flags, req->fh, hdr->nodeid, node ? node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] GETATTR flags=" << req->getattr_flags
+               << " fh=" << std::hex << req->fh << " @ " << std::hex << hdr->nodeid
+               << " (" << (node ? node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!node) {
@@ -639,8 +643,9 @@
 
     pthread_mutex_lock(&fuse->global->lock);
     node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
-    TRACE("[%d] SETATTR fh=%" PRIx64 " valid=%x @ %" PRIx64 " (%s)\n", handler->token,
-            req->fh, req->valid, hdr->nodeid, node ? node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] SETATTR fh=" << std::hex << req->fh
+               << " valid=" << std::hex << req->valid << " @ " << std::hex << hdr->nodeid
+               << " (" << (node ? node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!node) {
@@ -704,8 +709,9 @@
     pthread_mutex_lock(&fuse->global->lock);
     parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
             parent_path, sizeof(parent_path));
-    TRACE("[%d] MKNOD %s 0%o @ %" PRIx64 " (%s)\n", handler->token,
-            name, req->mode, hdr->nodeid, parent_node ? parent_node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] MKNOD " << name << " 0" << std::oct << req->mode
+               << " @ " << std::hex << hdr->nodeid
+               << " (" << (parent_node ? parent_node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!parent_node || !(actual_name = find_file_within(parent_path, name,
@@ -733,8 +739,9 @@
     pthread_mutex_lock(&fuse->global->lock);
     parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
             parent_path, sizeof(parent_path));
-    TRACE("[%d] MKDIR %s 0%o @ %" PRIx64 " (%s)\n", handler->token,
-            name, req->mode, hdr->nodeid, parent_node ? parent_node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] MKDIR " << name << " 0" << std::oct << req->mode
+               << " @ " << std::hex << hdr->nodeid
+               << " (" << (parent_node ? parent_node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!parent_node || !(actual_name = find_file_within(parent_path, name,
@@ -781,8 +788,8 @@
     pthread_mutex_lock(&fuse->global->lock);
     parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
             parent_path, sizeof(parent_path));
-    TRACE("[%d] UNLINK %s @ %" PRIx64 " (%s)\n", handler->token,
-            name, hdr->nodeid, parent_node ? parent_node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] UNLINK " << name << " @ " << std::hex << hdr->nodeid
+               << " (" << (parent_node ? parent_node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!parent_node || !find_file_within(parent_path, name,
@@ -803,8 +810,9 @@
     pthread_mutex_unlock(&fuse->global->lock);
     if (parent_node && child_node) {
         /* Tell all other views that node is gone */
-        TRACE("[%d] fuse_notify_delete parent=%" PRIx64 ", child=%" PRIx64 ", name=%s\n",
-                handler->token, (uint64_t) parent_node->nid, (uint64_t) child_node->nid, name);
+        DLOG(INFO) << "[" << handler->token << "] fuse_notify_delete"
+                   << " parent=" << std::hex << parent_node->nid
+                   << ", child=" << std::hex << child_node->nid << ", name=" << name;
         if (fuse != fuse->global->fuse_default) {
             fuse_notify_delete(fuse->global->fuse_default, parent_node->nid, child_node->nid, name);
         }
@@ -829,8 +837,8 @@
     pthread_mutex_lock(&fuse->global->lock);
     parent_node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid,
             parent_path, sizeof(parent_path));
-    TRACE("[%d] RMDIR %s @ %" PRIx64 " (%s)\n", handler->token,
-            name, hdr->nodeid, parent_node ? parent_node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] UNLINK " << name << " @ " << std::hex << hdr->nodeid
+               << " (" << (parent_node ? parent_node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!parent_node || !find_file_within(parent_path, name,
@@ -851,8 +859,9 @@
     pthread_mutex_unlock(&fuse->global->lock);
     if (parent_node && child_node) {
         /* Tell all other views that node is gone */
-        TRACE("[%d] fuse_notify_delete parent=%" PRIx64 ", child=%" PRIx64 ", name=%s\n",
-                handler->token, (uint64_t) parent_node->nid, (uint64_t) child_node->nid, name);
+        DLOG(INFO) << "[" << handler->token << "] fuse_notify_delete"
+                   << " parent=" << std::hex << parent_node->nid
+                   << ", child=" << std::hex << child_node->nid << ", name=" << name;
         if (fuse != fuse->global->fuse_default) {
             fuse_notify_delete(fuse->global->fuse_default, parent_node->nid, child_node->nid, name);
         }
@@ -886,10 +895,11 @@
             old_parent_path, sizeof(old_parent_path));
     new_parent_node = lookup_node_and_path_by_id_locked(fuse, req->newdir,
             new_parent_path, sizeof(new_parent_path));
-    TRACE("[%d] RENAME %s->%s @ %" PRIx64 " (%s) -> %" PRIx64 " (%s)\n", handler->token,
-            old_name, new_name,
-            hdr->nodeid, old_parent_node ? old_parent_node->name : "?",
-            req->newdir, new_parent_node ? new_parent_node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] RENAME " << old_name << "->" << new_name
+               << " @ " << std::hex << hdr->nodeid
+               << " (" << (old_parent_node ? old_parent_node->name : "?") << ") -> "
+               << std::hex << req->newdir
+               << " (" << (new_parent_node ? new_parent_node->name : "?") << ")";
     if (!old_parent_node || !new_parent_node) {
         res = -ENOENT;
         goto lookup_error;
@@ -970,8 +980,8 @@
 
     pthread_mutex_lock(&fuse->global->lock);
     node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
-    TRACE("[%d] OPEN 0%o @ %" PRIx64 " (%s)\n", handler->token,
-            req->flags, hdr->nodeid, node ? node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] OPEN 0" << std::oct << req->flags
+               << " @ " << std::hex << hdr->nodeid << " (" << (node ? node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!node) {
@@ -1018,8 +1028,8 @@
      * overlaps the request buffer and will clobber data in the request.  This
      * saves us 128KB per request handler thread at the cost of this scary comment. */
 
-    TRACE("[%d] READ %p(%d) %u@%" PRIu64 "\n", handler->token,
-            h, h->fd, size, (uint64_t) offset);
+    DLOG(INFO) << "[" << handler->token << "] READ " << std::hex << h << "(" << h->fd << ") "
+               << size << "@" << offset;
     if (size > MAX_READ) {
         return -EINVAL;
     }
@@ -1045,8 +1055,8 @@
         buffer = (const __u8*) aligned_buffer;
     }
 
-    TRACE("[%d] WRITE %p(%d) %u@%" PRIu64 "\n", handler->token,
-            h, h->fd, req->size, req->offset);
+    DLOG(INFO) << "[" << handler->token << "] WRITE " << std::hex << h << "(" << h->fd << ") "
+               << req->size << "@" << req->offset;
     res = pwrite64(h->fd, buffer, req->size, req->offset);
     if (res < 0) {
         return -errno;
@@ -1141,8 +1151,8 @@
 
     pthread_mutex_lock(&fuse->global->lock);
     node = lookup_node_and_path_by_id_locked(fuse, hdr->nodeid, path, sizeof(path));
-    TRACE("[%d] OPENDIR @ %" PRIx64 " (%s)\n", handler->token,
-            hdr->nodeid, node ? node->name : "?");
+    DLOG(INFO) << "[" << handler->token << "] OPENDIR @ " << std::hex << hdr->nodeid
+               << " (" << (node ? node->name : "?") << ")";
     pthread_mutex_unlock(&fuse->global->lock);
 
     if (!node) {
@@ -1379,8 +1389,8 @@
     }
 
     default: {
-        TRACE("[%d] NOTIMPL op=%d uniq=%" PRIx64 " nid=%" PRIx64 "\n",
-                handler->token, hdr->opcode, hdr->unique, hdr->nodeid);
+        DLOG(INFO) << "[" << handler->token << "] NOTIMPL op=" << hdr->opcode
+                   << "uniq=" << std::hex << hdr->unique << "nid=" << std::hex << hdr->nodeid;
         return -ENOSYS;
     }
     }
diff --git a/sdcard/fuse.h b/sdcard/fuse.h
index 634fbf1..9dafa79 100644
--- a/sdcard/fuse.h
+++ b/sdcard/fuse.h
@@ -33,6 +33,7 @@
 #include <map>
 #include <string>
 
+#include <android-base/logging.h>
 #include <cutils/fs.h>
 #include <cutils/log.h>
 #include <cutils/multiuser.h>
@@ -40,15 +41,20 @@
 
 #include <private/android_filesystem_config.h>
 
-// TODO(b/30222003): Fix compilation with FUSE_TRACE == 1.
 #define FUSE_TRACE 0
 
 #if FUSE_TRACE
 #define TRACE(x...) ALOGD(x)
-#else
+static constexpr bool kEnableDLog = true;
+#else  // FUSE_TRACE == 0
 #define TRACE(x...) do {} while (0)
+static constexpr bool kEnableDLog = false;
 #endif
 
+// Use same strategy as DCHECK().
+#define DLOG(x) \
+    if (kEnableDLog) LOG(x)
+
 #define ERROR(x...) ALOGE(x)
 
 /* Maximum number of bytes to write in one request. */