diff --git a/fastboot/device/usb_client.cpp b/fastboot/device/usb_client.cpp
index 9c80765..c653167 100644
--- a/fastboot/device/usb_client.cpp
+++ b/fastboot/device/usb_client.cpp
@@ -146,7 +146,7 @@
                 },
 };
 
-#define STR_INTERFACE_ "fastboot"
+#define STR_INTERFACE_ "fastbootd"
 
 static const struct {
     struct usb_functionfs_strings_head header;
diff --git a/fastboot/fastboot.cpp b/fastboot/fastboot.cpp
index 7f6e723..7abc936 100644
--- a/fastboot/fastboot.cpp
+++ b/fastboot/fastboot.cpp
@@ -258,6 +258,10 @@
 static int list_devices_callback(usb_ifc_info* info) {
     if (match_fastboot_with_serial(info, nullptr) == 0) {
         std::string serial = info->serial_number;
+        std::string interface = info->interface;
+        if (interface.empty()) {
+            interface = "fastboot";
+        }
         if (!info->writable) {
             serial = UsbNoPermissionsShortHelpText();
         }
@@ -266,9 +270,9 @@
         }
         // output compatible with "adb devices"
         if (!g_long_listing) {
-            printf("%s\tfastboot", serial.c_str());
+            printf("%s\t%s", serial.c_str(), interface.c_str());
         } else {
-            printf("%-22s fastboot", serial.c_str());
+            printf("%-22s %s", serial.c_str(), interface.c_str());
             if (strlen(info->device_path) > 0) printf(" %s", info->device_path);
         }
         putchar('\n');
diff --git a/fastboot/usb.h b/fastboot/usb.h
index 7ca44c4..e5f56e2 100644
--- a/fastboot/usb.h
+++ b/fastboot/usb.h
@@ -50,6 +50,8 @@
 
     char serial_number[256];
     char device_path[256];
+
+    char interface[256];
 };
 
 class UsbTransport : public Transport {
diff --git a/fastboot/usb_linux.cpp b/fastboot/usb_linux.cpp
index 6363aa5..964488c 100644
--- a/fastboot/usb_linux.cpp
+++ b/fastboot/usb_linux.cpp
@@ -43,6 +43,8 @@
 #include <linux/version.h>
 #include <linux/usb/ch9.h>
 
+#include <android-base/file.h>
+#include <android-base/stringprintf.h>
 #include <chrono>
 #include <memory>
 #include <thread>
@@ -263,6 +265,13 @@
         info.has_bulk_in = (in != -1);
         info.has_bulk_out = (out != -1);
 
+        std::string interface;
+        auto path = android::base::StringPrintf("/sys/bus/usb/devices/%s/%s:1.%d/interface",
+                                                sysfs_name, sysfs_name, ifc->bInterfaceNumber);
+        if (android::base::ReadFileToString(path, &interface)) {
+            snprintf(info.interface, sizeof(info.interface), "%s", interface.c_str());
+        }
+
         if(callback(&info) == 0) {
             *ept_in_id = in;
             *ept_out_id = out;
diff --git a/fastboot/usb_osx.cpp b/fastboot/usb_osx.cpp
index 8a3c213..610eebf 100644
--- a/fastboot/usb_osx.cpp
+++ b/fastboot/usb_osx.cpp
@@ -368,6 +368,7 @@
         // device has no serial number
         handle->info.serial_number[0] = 0;
     }
+    handle->info.interface[0] = 0;
     handle->info.writable = 1;
 
     if (try_interfaces(dev, handle)) {
diff --git a/fastboot/usb_windows.cpp b/fastboot/usb_windows.cpp
index bf840f8..67bf8a3 100644
--- a/fastboot/usb_windows.cpp
+++ b/fastboot/usb_windows.cpp
@@ -319,6 +319,7 @@
                     &serial_number_len, true)) {
         info.serial_number[0] = 0;
     }
+    info.interface[0] = 0;
 
     info.device_path[0] = 0;
 
diff --git a/fs_mgr/fs_mgr_fstab.cpp b/fs_mgr/fs_mgr_fstab.cpp
index 0825a77..f333a85 100644
--- a/fs_mgr/fs_mgr_fstab.cpp
+++ b/fs_mgr/fs_mgr_fstab.cpp
@@ -408,16 +408,17 @@
     return fstab_result;
 }
 
-// Identify path to fstab file. Lookup is based on pattern fstab.<hardware>,
-// fstab.<hardware.platform> in folders /odm/etc, vendor/etc, or /.
+// Identify path to fstab file. Lookup is based on pattern
+// fstab.<fstab_suffix>, fstab.<hardware>, fstab.<hardware.platform> in
+// folders /odm/etc, vendor/etc, or /.
 std::string GetFstabPath() {
-    for (const char* prop : {"hardware", "hardware.platform"}) {
-        std::string hw;
+    for (const char* prop : {"fstab_suffix", "hardware", "hardware.platform"}) {
+        std::string suffix;
 
-        if (!fs_mgr_get_boot_config(prop, &hw)) continue;
+        if (!fs_mgr_get_boot_config(prop, &suffix)) continue;
 
         for (const char* prefix : {"/odm/etc/fstab.", "/vendor/etc/fstab.", "/fstab."}) {
-            std::string fstab_path = prefix + hw;
+            std::string fstab_path = prefix + suffix;
             if (access(fstab_path.c_str(), F_OK) == 0) {
                 return fstab_path;
             }
diff --git a/fs_mgr/libdm/dm.cpp b/fs_mgr/libdm/dm.cpp
index 673e145..7912688 100644
--- a/fs_mgr/libdm/dm.cpp
+++ b/fs_mgr/libdm/dm.cpp
@@ -29,6 +29,7 @@
 #include <android-base/file.h>
 #include <android-base/logging.h>
 #include <android-base/macros.h>
+#include <android-base/properties.h>
 #include <android-base/strings.h>
 #include <uuid/uuid.h>
 
@@ -140,6 +141,10 @@
     return std::string{uuid_chars};
 }
 
+static bool IsRecovery() {
+    return access("/system/bin/recovery", F_OK) == 0;
+}
+
 bool DeviceMapper::CreateDevice(const std::string& name, const DmTable& table, std::string* path,
                                 const std::chrono::milliseconds& timeout_ms) {
     std::string uuid = GenerateUuid();
@@ -160,6 +165,16 @@
     if (timeout_ms <= std::chrono::milliseconds::zero()) {
         return true;
     }
+
+    if (IsRecovery()) {
+        bool non_ab_device = android::base::GetProperty("ro.build.ab_update", "").empty();
+        int sdk = android::base::GetIntProperty("ro.build.version.sdk", 0);
+        if (non_ab_device && sdk && sdk <= 29) {
+            LOG(INFO) << "Detected ueventd incompatibility, reverting to legacy libdm behavior.";
+            unique_path = *path;
+        }
+    }
+
     if (!WaitForFile(unique_path, timeout_ms)) {
         LOG(ERROR) << "Failed waiting for device path: " << unique_path;
         DeleteDevice(name);
diff --git a/fs_mgr/liblp/include/liblp/builder.h b/fs_mgr/liblp/include/liblp/builder.h
index 732dbea..89a47b1 100644
--- a/fs_mgr/liblp/include/liblp/builder.h
+++ b/fs_mgr/liblp/include/liblp/builder.h
@@ -144,7 +144,6 @@
     std::vector<std::unique_ptr<Extent>> extents_;
     uint32_t attributes_;
     uint64_t size_;
-    bool disabled_;
 };
 
 // An interval in the metadata. This is similar to a LinearExtent with one difference.
@@ -321,9 +320,6 @@
     // Set the LP_HEADER_FLAG_VIRTUAL_AB_DEVICE flag.
     void SetVirtualABDeviceFlag();
 
-    // If set, checks for slot suffixes will be ignored internally.
-    void IgnoreSlotSuffixing();
-
     bool GetBlockDeviceInfo(const std::string& partition_name, BlockDeviceInfo* info) const;
     bool UpdateBlockDeviceInfo(const std::string& partition_name, const BlockDeviceInfo& info);
 
diff --git a/init/README.md b/init/README.md
index b70366b..0dd1490 100644
--- a/init/README.md
+++ b/init/README.md
@@ -547,13 +547,16 @@
   * `ref`: use the systemwide DE key
   * `per_boot_ref`: use the key freshly generated on each boot.
 
-`mount_all <fstab> [ <path> ]\* [--<option>]`
+`mount_all [ <fstab> ] [--<option>]`
 > Calls fs\_mgr\_mount\_all on the given fs\_mgr-format fstab with optional
   options "early" and "late".
   With "--early" set, the init executable will skip mounting entries with
   "latemount" flag and triggering fs encryption state event. With "--late" set,
   init executable will only mount entries with "latemount" flag. By default,
   no option is set, and mount\_all will process all entries in the given fstab.
+  If the fstab parameter is not specified, fstab.${ro.boot.fstab_suffix},
+  fstab.${ro.hardware} or fstab.${ro.hardware.platform} will be scanned for
+  under /odm/etc, /vendor/etc, or / at runtime, in that order.
 
 `mount <type> <device> <dir> [ <flag>\* ] [<options>]`
 > Attempt to mount the named device at the directory _dir_
diff --git a/init/builtins.cpp b/init/builtins.cpp
index 149a766..e918e12 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -518,21 +518,21 @@
 
 /* Imports .rc files from the specified paths. Default ones are applied if none is given.
  *
- * start_index: index of the first path in the args list
+ * rc_paths: list of paths to rc files to import
  */
-static void import_late(const std::vector<std::string>& args, size_t start_index, size_t end_index) {
+static void import_late(const std::vector<std::string>& rc_paths) {
     auto& action_manager = ActionManager::GetInstance();
     auto& service_list = ServiceList::GetInstance();
     Parser parser = CreateParser(action_manager, service_list);
-    if (end_index <= start_index) {
+    if (rc_paths.empty()) {
         // Fallbacks for partitions on which early mount isn't enabled.
         for (const auto& path : late_import_paths) {
             parser.ParseConfig(path);
         }
         late_import_paths.clear();
     } else {
-        for (size_t i = start_index; i < end_index; ++i) {
-            parser.ParseConfig(args[i]);
+        for (const auto& rc_path : rc_paths) {
+            parser.ParseConfig(rc_path);
         }
     }
 
@@ -633,48 +633,44 @@
 
 static int initial_mount_fstab_return_code = -1;
 
-/* mount_all <fstab> [ <path> ]* [--<options>]*
+/* <= Q: mount_all <fstab> [ <path> ]* [--<options>]*
+ * >= R: mount_all [ <fstab> ] [--<options>]*
  *
  * This function might request a reboot, in which case it will
  * not return.
  */
 static Result<void> do_mount_all(const BuiltinArguments& args) {
-    std::size_t na = 0;
-    bool import_rc = true;
-    bool queue_event = true;
-    int mount_mode = MOUNT_MODE_DEFAULT;
-    const auto& fstab_file = args[1];
-    std::size_t path_arg_end = args.size();
-    const char* prop_post_fix = "default";
+    auto mount_all = ParseMountAll(args.args);
+    if (!mount_all.ok()) return mount_all.error();
 
-    for (na = args.size() - 1; na > 1; --na) {
-        if (args[na] == "--early") {
-            path_arg_end = na;
-            queue_event = false;
-            mount_mode = MOUNT_MODE_EARLY;
-            prop_post_fix = "early";
-        } else if (args[na] == "--late") {
-            path_arg_end = na;
-            import_rc = false;
-            mount_mode = MOUNT_MODE_LATE;
-            prop_post_fix = "late";
-        }
+    const char* prop_post_fix = "default";
+    bool queue_event = true;
+    if (mount_all->mode == MOUNT_MODE_EARLY) {
+        prop_post_fix = "early";
+        queue_event = false;
+    } else if (mount_all->mode == MOUNT_MODE_LATE) {
+        prop_post_fix = "late";
     }
 
     std::string prop_name = "ro.boottime.init.mount_all."s + prop_post_fix;
     android::base::Timer t;
 
     Fstab fstab;
-    if (!ReadFstabFromFile(fstab_file, &fstab)) {
-        return Error() << "Could not read fstab";
+    if (mount_all->fstab_path.empty()) {
+        if (!ReadDefaultFstab(&fstab)) {
+            return Error() << "Could not read default fstab";
+        }
+    } else {
+        if (!ReadFstabFromFile(mount_all->fstab_path, &fstab)) {
+            return Error() << "Could not read fstab";
+        }
     }
 
-    auto mount_fstab_return_code = fs_mgr_mount_all(&fstab, mount_mode);
+    auto mount_fstab_return_code = fs_mgr_mount_all(&fstab, mount_all->mode);
     SetProperty(prop_name, std::to_string(t.duration().count()));
 
-    if (import_rc && SelinuxGetVendorAndroidVersion() <= __ANDROID_API_Q__) {
-        /* Paths of .rc files are specified at the 2nd argument and beyond */
-        import_late(args.args, 2, path_arg_end);
+    if (mount_all->import_rc) {
+        import_late(mount_all->rc_paths);
     }
 
     if (queue_event) {
@@ -690,11 +686,20 @@
     return {};
 }
 
-/* umount_all <fstab> */
+/* umount_all [ <fstab> ] */
 static Result<void> do_umount_all(const BuiltinArguments& args) {
+    auto umount_all = ParseUmountAll(args.args);
+    if (!umount_all.ok()) return umount_all.error();
+
     Fstab fstab;
-    if (!ReadFstabFromFile(args[1], &fstab)) {
-        return Error() << "Could not read fstab";
+    if (umount_all->empty()) {
+        if (!ReadDefaultFstab(&fstab)) {
+            return Error() << "Could not read default fstab";
+        }
+    } else {
+        if (!ReadFstabFromFile(*umount_all, &fstab)) {
+            return Error() << "Could not read fstab";
+        }
     }
 
     if (auto result = fs_mgr_umount_all(&fstab); result != 0) {
@@ -1349,11 +1354,11 @@
         // mount_all is currently too complex to run in vendor_init as it queues action triggers,
         // imports rc scripts, etc.  It should be simplified and run in vendor_init context.
         // mount and umount are run in the same context as mount_all for symmetry.
-        {"mount_all",               {1,     kMax, {false,  do_mount_all}}},
+        {"mount_all",               {0,     kMax, {false,  do_mount_all}}},
         {"mount",                   {3,     kMax, {false,  do_mount}}},
         {"perform_apex_config",     {0,     0,    {false,  do_perform_apex_config}}},
         {"umount",                  {1,     1,    {false,  do_umount}}},
-        {"umount_all",              {1,     1,    {false,  do_umount_all}}},
+        {"umount_all",              {0,     1,    {false,  do_umount_all}}},
         {"update_linker_config",    {0,     0,    {false,  do_update_linker_config}}},
         {"readahead",               {1,     2,    {true,   do_readahead}}},
         {"remount_userdata",        {0,     0,    {false,  do_remount_userdata}}},
diff --git a/init/check_builtins.cpp b/init/check_builtins.cpp
index d1a84f3..450c079 100644
--- a/init/check_builtins.cpp
+++ b/init/check_builtins.cpp
@@ -123,6 +123,14 @@
     return {};
 }
 
+Result<void> check_mount_all(const BuiltinArguments& args) {
+    auto options = ParseMountAll(args.args);
+    if (!options.ok()) {
+        return options.error();
+    }
+    return {};
+}
+
 Result<void> check_mkdir(const BuiltinArguments& args) {
     auto options = ParseMkdir(args.args);
     if (!options.ok()) {
@@ -204,6 +212,14 @@
     return {};
 }
 
+Result<void> check_umount_all(const BuiltinArguments& args) {
+    auto options = ParseUmountAll(args.args);
+    if (!options.ok()) {
+        return options.error();
+    }
+    return {};
+}
+
 Result<void> check_wait(const BuiltinArguments& args) {
     if (args.size() == 3 && !args[2].empty()) {
         double timeout_double;
diff --git a/init/check_builtins.h b/init/check_builtins.h
index fb34556..725a6fd 100644
--- a/init/check_builtins.h
+++ b/init/check_builtins.h
@@ -32,11 +32,13 @@
 Result<void> check_load_system_props(const BuiltinArguments& args);
 Result<void> check_loglevel(const BuiltinArguments& args);
 Result<void> check_mkdir(const BuiltinArguments& args);
+Result<void> check_mount_all(const BuiltinArguments& args);
 Result<void> check_restorecon(const BuiltinArguments& args);
 Result<void> check_restorecon_recursive(const BuiltinArguments& args);
 Result<void> check_setprop(const BuiltinArguments& args);
 Result<void> check_setrlimit(const BuiltinArguments& args);
 Result<void> check_sysclktz(const BuiltinArguments& args);
+Result<void> check_umount_all(const BuiltinArguments& args);
 Result<void> check_wait(const BuiltinArguments& args);
 Result<void> check_wait_for_prop(const BuiltinArguments& args);
 
diff --git a/init/util.cpp b/init/util.cpp
index f9be055..40f24b1 100644
--- a/init/util.cpp
+++ b/init/util.cpp
@@ -572,6 +572,48 @@
     return MkdirOptions{args[1], mode, *uid, *gid, fscrypt_action, ref_option};
 }
 
+Result<MountAllOptions> ParseMountAll(const std::vector<std::string>& args) {
+    bool compat_mode = false;
+    bool import_rc = false;
+    if (SelinuxGetVendorAndroidVersion() <= __ANDROID_API_Q__) {
+        if (args.size() <= 1) {
+            return Error() << "mount_all requires at least 1 argument";
+        }
+        compat_mode = true;
+        import_rc = true;
+    }
+
+    std::size_t first_option_arg = args.size();
+    enum mount_mode mode = MOUNT_MODE_DEFAULT;
+
+    // If we are <= Q, then stop looking for non-fstab arguments at slot 2.
+    // Otherwise, stop looking at slot 1 (as the fstab path argument is optional >= R).
+    for (std::size_t na = args.size() - 1; na > (compat_mode ? 1 : 0); --na) {
+        if (args[na] == "--early") {
+            first_option_arg = na;
+            mode = MOUNT_MODE_EARLY;
+        } else if (args[na] == "--late") {
+            first_option_arg = na;
+            mode = MOUNT_MODE_LATE;
+            import_rc = false;
+        }
+    }
+
+    std::string fstab_path;
+    if (first_option_arg > 1) {
+        fstab_path = args[1];
+    } else if (compat_mode) {
+        return Error() << "mount_all argument 1 must be the fstab path";
+    }
+
+    std::vector<std::string> rc_paths;
+    for (std::size_t na = 2; na < first_option_arg; ++na) {
+        rc_paths.push_back(args[na]);
+    }
+
+    return MountAllOptions{rc_paths, fstab_path, mode, import_rc};
+}
+
 Result<std::pair<int, std::vector<std::string>>> ParseRestorecon(
         const std::vector<std::string>& args) {
     struct flag_type {
@@ -612,6 +654,15 @@
     return std::pair(flag, paths);
 }
 
+Result<std::string> ParseUmountAll(const std::vector<std::string>& args) {
+    if (SelinuxGetVendorAndroidVersion() <= __ANDROID_API_Q__) {
+        if (args.size() <= 1) {
+            return Error() << "umount_all requires at least 1 argument";
+        }
+    }
+    return args[1];
+}
+
 static void InitAborter(const char* abort_message) {
     // When init forks, it continues to use this aborter for LOG(FATAL), but we want children to
     // simply abort instead of trying to reboot the system.
diff --git a/init/util.h b/init/util.h
index 8167b02..28f6b18 100644
--- a/init/util.h
+++ b/init/util.h
@@ -22,6 +22,7 @@
 #include <chrono>
 #include <functional>
 #include <string>
+#include <vector>
 
 #include <android-base/chrono_utils.h>
 
@@ -33,6 +34,12 @@
 namespace android {
 namespace init {
 
+enum mount_mode {
+    MOUNT_MODE_DEFAULT = 0,
+    MOUNT_MODE_EARLY = 1,
+    MOUNT_MODE_LATE = 2,
+};
+
 static const char kColdBootDoneProp[] = "ro.cold_boot_done";
 
 extern void (*trigger_shutdown)(const std::string& command);
@@ -73,9 +80,20 @@
 
 Result<MkdirOptions> ParseMkdir(const std::vector<std::string>& args);
 
+struct MountAllOptions {
+    std::vector<std::string> rc_paths;
+    std::string fstab_path;
+    mount_mode mode;
+    bool import_rc;
+};
+
+Result<MountAllOptions> ParseMountAll(const std::vector<std::string>& args);
+
 Result<std::pair<int, std::vector<std::string>>> ParseRestorecon(
         const std::vector<std::string>& args);
 
+Result<std::string> ParseUmountAll(const std::vector<std::string>& args);
+
 void SetStdioToDevNull(char** argv);
 void InitKernelLogging(char** argv);
 void InitSecondStageLogging(char** argv);
diff --git a/libutils/Android.bp b/libutils/Android.bp
index 0f7044a..ea39d34 100644
--- a/libutils/Android.bp
+++ b/libutils/Android.bp
@@ -246,6 +246,7 @@
         "String8_test.cpp",
         "String16_test.cpp",
         "StrongPointer_test.cpp",
+        "Timers_test.cpp",
         "Unicode_test.cpp",
         "Vector_test.cpp",
     ],
diff --git a/libutils/Timers.cpp b/libutils/Timers.cpp
index 1172ae7..fd3f4a9 100644
--- a/libutils/Timers.cpp
+++ b/libutils/Timers.cpp
@@ -20,31 +20,37 @@
 #include <utils/Timers.h>
 
 #include <limits.h>
+#include <stdlib.h>
 #include <time.h>
 
-// host linux support requires Linux 2.6.39+
+#include <android-base/macros.h>
+
+static constexpr size_t clock_id_max = 5;
+
+static void checkClockId(int clock) {
+    if (clock < 0 || clock >= clock_id_max) abort();
+}
+
 #if defined(__linux__)
-nsecs_t systemTime(int clock)
-{
-    static const clockid_t clocks[] = {
-            CLOCK_REALTIME,
-            CLOCK_MONOTONIC,
-            CLOCK_PROCESS_CPUTIME_ID,
-            CLOCK_THREAD_CPUTIME_ID,
-            CLOCK_BOOTTIME
-    };
-    struct timespec t;
-    t.tv_sec = t.tv_nsec = 0;
+nsecs_t systemTime(int clock) {
+    checkClockId(clock);
+    static constexpr clockid_t clocks[] = {CLOCK_REALTIME, CLOCK_MONOTONIC,
+                                           CLOCK_PROCESS_CPUTIME_ID, CLOCK_THREAD_CPUTIME_ID,
+                                           CLOCK_BOOTTIME};
+    static_assert(clock_id_max == arraysize(clocks));
+    timespec t = {};
     clock_gettime(clocks[clock], &t);
     return nsecs_t(t.tv_sec)*1000000000LL + t.tv_nsec;
 }
 #else
-nsecs_t systemTime(int /*clock*/)
-{
+nsecs_t systemTime(int clock) {
+    // TODO: is this ever called with anything but REALTIME on mac/windows?
+    checkClockId(clock);
+
     // Clock support varies widely across hosts. Mac OS doesn't support
-    // CLOCK_BOOTTIME, and Windows is windows.
-    struct timeval t;
-    t.tv_sec = t.tv_usec = 0;
+    // CLOCK_BOOTTIME (and doesn't even have clock_gettime until 10.12).
+    // Windows is windows.
+    timeval t = {};
     gettimeofday(&t, nullptr);
     return nsecs_t(t.tv_sec)*1000000000LL + nsecs_t(t.tv_usec)*1000LL;
 }
diff --git a/libutils/Timers_test.cpp b/libutils/Timers_test.cpp
new file mode 100644
index 0000000..ec0051e
--- /dev/null
+++ b/libutils/Timers_test.cpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Timers.h>
+
+#include <gtest/gtest.h>
+
+TEST(Timers, systemTime_invalid) {
+    EXPECT_EXIT(systemTime(-1), testing::KilledBySignal(SIGABRT), "");
+    systemTime(SYSTEM_TIME_REALTIME);
+    systemTime(SYSTEM_TIME_MONOTONIC);
+    systemTime(SYSTEM_TIME_PROCESS);
+    systemTime(SYSTEM_TIME_THREAD);
+    systemTime(SYSTEM_TIME_BOOTTIME);
+    EXPECT_EXIT(systemTime(SYSTEM_TIME_BOOTTIME + 1), testing::KilledBySignal(SIGABRT), "");
+}
diff --git a/libutils/include/utils/Timers.h b/libutils/include/utils/Timers.h
index 54ec474..197fc26 100644
--- a/libutils/include/utils/Timers.h
+++ b/libutils/include/utils/Timers.h
@@ -14,11 +14,7 @@
  * limitations under the License.
  */
 
-//
-// Timer functions.
-//
-#ifndef _LIBS_UTILS_TIMERS_H
-#define _LIBS_UTILS_TIMERS_H
+#pragma once
 
 #include <stdint.h>
 #include <sys/types.h>
@@ -77,11 +73,11 @@
 static CONSTEXPR inline nsecs_t microseconds(nsecs_t v) { return us2ns(v); }
 
 enum {
-    SYSTEM_TIME_REALTIME = 0,  // system-wide realtime clock
-    SYSTEM_TIME_MONOTONIC = 1, // monotonic time since unspecified starting point
-    SYSTEM_TIME_PROCESS = 2,   // high-resolution per-process clock
-    SYSTEM_TIME_THREAD = 3,    // high-resolution per-thread clock
-    SYSTEM_TIME_BOOTTIME = 4   // same as SYSTEM_TIME_MONOTONIC, but including CPU suspend time
+    SYSTEM_TIME_REALTIME = 0,   // system-wide realtime clock
+    SYSTEM_TIME_MONOTONIC = 1,  // monotonic time since unspecified starting point
+    SYSTEM_TIME_PROCESS = 2,    // high-resolution per-process clock
+    SYSTEM_TIME_THREAD = 3,     // high-resolution per-thread clock
+    SYSTEM_TIME_BOOTTIME = 4,   // same as SYSTEM_TIME_MONOTONIC, but including CPU suspend time
 };
 
 // return the system-time according to the specified clock
@@ -104,5 +100,3 @@
 #ifdef __cplusplus
 } // extern "C"
 #endif
-
-#endif // _LIBS_UTILS_TIMERS_H
diff --git a/logd/LogBuffer.h b/logd/LogBuffer.h
index 7f1e128..859d740 100644
--- a/logd/LogBuffer.h
+++ b/logd/LogBuffer.h
@@ -21,13 +21,11 @@
 #include <functional>
 
 #include <log/log.h>
-#include <sysutils/SocketClient.h>
+#include <log/log_read.h>
 
-#include "LogBufferElement.h"
+#include "LogWriter.h"
 
-class LogWriter;
-
-enum class FlushToResult {
+enum class FilterResult {
     kSkip,
     kStop,
     kWrite,
@@ -45,10 +43,11 @@
     // valid message was from the same source so we can differentiate chatty
     // filter types (identical or expired)
     static const uint64_t FLUSH_ERROR = 0;
-    virtual uint64_t FlushTo(
-            LogWriter* writer, uint64_t start,
-            pid_t* last_tid,  // nullable
-            const std::function<FlushToResult(const LogBufferElement* element)>& filter) = 0;
+    virtual uint64_t FlushTo(LogWriter* writer, uint64_t start,
+                             pid_t* last_tid,  // nullable
+                             const std::function<FilterResult(log_id_t log_id, pid_t pid,
+                                                              uint64_t sequence, log_time realtime,
+                                                              uint16_t dropped_count)>& filter) = 0;
 
     virtual bool Clear(log_id_t id, uid_t uid) = 0;
     virtual unsigned long GetSize(log_id_t id) = 0;
diff --git a/logd/LogReader.cpp b/logd/LogReader.cpp
index 234ddc7..35c46aa 100644
--- a/logd/LogReader.cpp
+++ b/logd/LogReader.cpp
@@ -171,27 +171,29 @@
     if (start != log_time::EPOCH) {
         bool start_time_set = false;
         uint64_t last = sequence;
-        auto log_find_start = [pid, logMask, start, &sequence, &start_time_set,
-                               &last](const LogBufferElement* element) -> FlushToResult {
-            if (pid && pid != element->getPid()) {
-                return FlushToResult::kSkip;
+        auto log_find_start = [pid, logMask, start, &sequence, &start_time_set, &last](
+                                      log_id_t element_log_id, pid_t element_pid,
+                                      uint64_t element_sequence, log_time element_realtime,
+                                      uint16_t) -> FilterResult {
+            if (pid && pid != element_pid) {
+                return FilterResult::kSkip;
             }
-            if ((logMask & (1 << element->getLogId())) == 0) {
-                return FlushToResult::kSkip;
+            if ((logMask & (1 << element_log_id)) == 0) {
+                return FilterResult::kSkip;
             }
-            if (start == element->getRealTime()) {
-                sequence = element->getSequence();
+            if (start == element_realtime) {
+                sequence = element_sequence;
                 start_time_set = true;
-                return FlushToResult::kStop;
+                return FilterResult::kStop;
             } else {
-                if (start < element->getRealTime()) {
+                if (start < element_realtime) {
                     sequence = last;
                     start_time_set = true;
-                    return FlushToResult::kStop;
+                    return FilterResult::kStop;
                 }
-                last = element->getSequence();
+                last = element_sequence;
             }
-            return FlushToResult::kSkip;
+            return FilterResult::kSkip;
         };
 
         log_buffer_->FlushTo(socket_log_writer.get(), sequence, nullptr, log_find_start);
diff --git a/logd/LogReaderThread.cpp b/logd/LogReaderThread.cpp
index b2001b5..3a83f3f 100644
--- a/logd/LogReaderThread.cpp
+++ b/logd/LogReaderThread.cpp
@@ -75,13 +75,21 @@
 
         if (tail_) {
             log_buffer_->FlushTo(writer_.get(), start, nullptr,
-                                 std::bind(&LogReaderThread::FilterFirstPass, this, _1));
+                                 [this](log_id_t log_id, pid_t pid, uint64_t sequence,
+                                        log_time realtime, uint16_t dropped_count) {
+                                     return FilterFirstPass(log_id, pid, sequence, realtime,
+                                                            dropped_count);
+                                 });
             leading_dropped_ =
                     true;  // TODO: Likely a bug, if leading_dropped_ was not true before calling
                            // flushTo(), then it should not be reset to true after.
         }
         start = log_buffer_->FlushTo(writer_.get(), start, last_tid_,
-                                     std::bind(&LogReaderThread::FilterSecondPass, this, _1));
+                                     [this](log_id_t log_id, pid_t pid, uint64_t sequence,
+                                            log_time realtime, uint16_t dropped_count) {
+                                         return FilterSecondPass(log_id, pid, sequence, realtime,
+                                                                 dropped_count);
+                                     });
 
         // We only ignore entries before the original start time for the first flushTo(), if we
         // get entries after this first flush before the original start time, then the client
@@ -123,65 +131,67 @@
 }
 
 // A first pass to count the number of elements
-FlushToResult LogReaderThread::FilterFirstPass(const LogBufferElement* element) {
+FilterResult LogReaderThread::FilterFirstPass(log_id_t log_id, pid_t pid, uint64_t sequence,
+                                              log_time realtime, uint16_t dropped_count) {
     auto lock = std::lock_guard{reader_list_->reader_threads_lock()};
 
     if (leading_dropped_) {
-        if (element->getDropped()) {
-            return FlushToResult::kSkip;
+        if (dropped_count) {
+            return FilterResult::kSkip;
         }
         leading_dropped_ = false;
     }
 
     if (count_ == 0) {
-        start_ = element->getSequence();
+        start_ = sequence;
     }
 
-    if ((!pid_ || pid_ == element->getPid()) && IsWatching(element->getLogId()) &&
-        (start_time_ == log_time::EPOCH || start_time_ <= element->getRealTime())) {
+    if ((!pid_ || pid_ == pid) && IsWatching(log_id) &&
+        (start_time_ == log_time::EPOCH || start_time_ <= realtime)) {
         ++count_;
     }
 
-    return FlushToResult::kSkip;
+    return FilterResult::kSkip;
 }
 
 // A second pass to send the selected elements
-FlushToResult LogReaderThread::FilterSecondPass(const LogBufferElement* element) {
+FilterResult LogReaderThread::FilterSecondPass(log_id_t log_id, pid_t pid, uint64_t sequence,
+                                               log_time realtime, uint16_t dropped_count) {
     auto lock = std::lock_guard{reader_list_->reader_threads_lock()};
 
-    start_ = element->getSequence();
+    start_ = sequence;
 
-    if (skip_ahead_[element->getLogId()]) {
-        skip_ahead_[element->getLogId()]--;
-        return FlushToResult::kSkip;
+    if (skip_ahead_[log_id]) {
+        skip_ahead_[log_id]--;
+        return FilterResult::kSkip;
     }
 
     if (leading_dropped_) {
-        if (element->getDropped()) {
-            return FlushToResult::kSkip;
+        if (dropped_count) {
+            return FilterResult::kSkip;
         }
         leading_dropped_ = false;
     }
 
     // Truncate to close race between first and second pass
     if (non_block_ && tail_ && index_ >= count_) {
-        return FlushToResult::kStop;
+        return FilterResult::kStop;
     }
 
-    if (!IsWatching(element->getLogId())) {
-        return FlushToResult::kSkip;
+    if (!IsWatching(log_id)) {
+        return FilterResult::kSkip;
     }
 
-    if (pid_ && pid_ != element->getPid()) {
-        return FlushToResult::kSkip;
+    if (pid_ && pid_ != pid) {
+        return FilterResult::kSkip;
     }
 
-    if (start_time_ != log_time::EPOCH && element->getRealTime() <= start_time_) {
-        return FlushToResult::kSkip;
+    if (start_time_ != log_time::EPOCH && realtime <= start_time_) {
+        return FilterResult::kSkip;
     }
 
     if (release_) {
-        return FlushToResult::kStop;
+        return FilterResult::kStop;
     }
 
     if (!tail_) {
@@ -191,7 +201,7 @@
     ++index_;
 
     if (count_ > tail_ && index_ <= (count_ - tail_)) {
-        return FlushToResult::kSkip;
+        return FilterResult::kSkip;
     }
 
     if (!non_block_) {
@@ -199,10 +209,10 @@
     }
 
 ok:
-    if (!skip_ahead_[element->getLogId()]) {
-        return FlushToResult::kWrite;
+    if (!skip_ahead_[log_id]) {
+        return FilterResult::kWrite;
     }
-    return FlushToResult::kSkip;
+    return FilterResult::kSkip;
 }
 
 void LogReaderThread::cleanSkip_Locked(void) {
diff --git a/logd/LogReaderThread.h b/logd/LogReaderThread.h
index e48a3ca..ba81063 100644
--- a/logd/LogReaderThread.h
+++ b/logd/LogReaderThread.h
@@ -30,7 +30,6 @@
 #include <sysutils/SocketClient.h>
 
 #include "LogBuffer.h"
-#include "LogBufferElement.h"
 #include "LogWriter.h"
 
 class LogReaderList;
@@ -63,8 +62,10 @@
   private:
     void ThreadFunction();
     // flushTo filter callbacks
-    FlushToResult FilterFirstPass(const LogBufferElement* element);
-    FlushToResult FilterSecondPass(const LogBufferElement* element);
+    FilterResult FilterFirstPass(log_id_t log_id, pid_t pid, uint64_t sequence, log_time realtime,
+                                 uint16_t dropped_count);
+    FilterResult FilterSecondPass(log_id_t log_id, pid_t pid, uint64_t sequence, log_time realtime,
+                                  uint16_t dropped_count);
 
     std::condition_variable thread_triggered_condition_;
     LogBuffer* log_buffer_;
diff --git a/logd/SimpleLogBuffer.cpp b/logd/SimpleLogBuffer.cpp
index 1c83428..8a11b92 100644
--- a/logd/SimpleLogBuffer.cpp
+++ b/logd/SimpleLogBuffer.cpp
@@ -112,7 +112,8 @@
 
 uint64_t SimpleLogBuffer::FlushTo(
         LogWriter* writer, uint64_t start, pid_t* last_tid,
-        const std::function<FlushToResult(const LogBufferElement* element)>& filter) {
+        const std::function<FilterResult(log_id_t log_id, pid_t pid, uint64_t sequence,
+                                         log_time realtime, uint16_t dropped_count)>& filter) {
     auto shared_lock = SharedLock{lock_};
 
     std::list<LogBufferElement>::iterator it;
@@ -146,11 +147,12 @@
         }
 
         if (filter) {
-            FlushToResult ret = filter(&element);
-            if (ret == FlushToResult::kSkip) {
+            FilterResult ret = filter(element.getLogId(), element.getPid(), element.getSequence(),
+                                      element.getRealTime(), element.getDropped());
+            if (ret == FilterResult::kSkip) {
                 continue;
             }
-            if (ret == FlushToResult::kStop) {
+            if (ret == FilterResult::kStop) {
                 break;
             }
         }
diff --git a/logd/SimpleLogBuffer.h b/logd/SimpleLogBuffer.h
index 9a2d01a..72d26b0 100644
--- a/logd/SimpleLogBuffer.h
+++ b/logd/SimpleLogBuffer.h
@@ -35,9 +35,10 @@
 
     int Log(log_id_t log_id, log_time realtime, uid_t uid, pid_t pid, pid_t tid, const char* msg,
             uint16_t len) override;
-    uint64_t FlushTo(
-            LogWriter* writer, uint64_t start, pid_t* lastTid,
-            const std::function<FlushToResult(const LogBufferElement* element)>& filter) override;
+    uint64_t FlushTo(LogWriter* writer, uint64_t start, pid_t* lastTid,
+                     const std::function<FilterResult(log_id_t log_id, pid_t pid, uint64_t sequence,
+                                                      log_time realtime, uint16_t dropped_count)>&
+                             filter) override;
 
     bool Clear(log_id_t id, uid_t uid) override;
     unsigned long GetSize(log_id_t id) override;