diff --git a/Android.bp b/Android.bp
index af77cef..8f2ba34 100644
--- a/Android.bp
+++ b/Android.bp
@@ -48,6 +48,7 @@
         "libdiskconfig",
         "libext4_utils",
         "libf2fs_sparseblock",
+        "libfscrypt",
         "libhardware",
         "libhardware_legacy",
         "libhidlbase",
@@ -99,8 +100,8 @@
         "Checkpoint.cpp",
         "Devmapper.cpp",
         "EncryptInplace.cpp",
-        "Ext4Crypt.cpp",
         "FileDeviceUtils.cpp",
+        "FsCrypt.cpp",
         "IdleMaint.cpp",
         "KeyBuffer.cpp",
         "KeyStorage.cpp",
diff --git a/Ext4Crypt.cpp b/FsCrypt.cpp
similarity index 92%
rename from Ext4Crypt.cpp
rename to FsCrypt.cpp
index 21071d4..087b916 100644
--- a/Ext4Crypt.cpp
+++ b/FsCrypt.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "Ext4Crypt.h"
+#include "FsCrypt.h"
 
 #include "KeyStorage.h"
 #include "KeyUtil.h"
@@ -50,7 +50,7 @@
 #include <cutils/fs.h>
 #include <cutils/properties.h>
 
-#include <ext4_utils/ext4_crypt.h>
+#include <fscrypt/fscrypt.h>
 #include <keyutils.h>
 
 #include <android-base/file.h>
@@ -71,7 +71,7 @@
     std::string key_raw_ref;
 };
 
-const std::string device_key_dir = std::string() + DATA_MNT_POINT + e4crypt_unencrypted_folder;
+const std::string device_key_dir = std::string() + DATA_MNT_POINT + fscrypt_unencrypted_folder;
 const std::string device_key_path = device_key_dir + "/key";
 const std::string device_key_temp = device_key_dir + "/temp";
 
@@ -95,7 +95,7 @@
 
 }  // namespace
 
-static bool e4crypt_is_emulated() {
+static bool fscrypt_is_emulated() {
     return property_get_bool("persist.sys.emulate_fbe", false);
 }
 
@@ -282,7 +282,7 @@
 }
 
 static bool ensure_policy(const PolicyKeyRef& key_ref, const std::string& path) {
-    return e4crypt_policy_ensure(path.c_str(), key_ref.key_raw_ref.data(),
+    return fscrypt_policy_ensure(path.c_str(), key_ref.key_raw_ref.data(),
                                  key_ref.key_raw_ref.size(), key_ref.contents_mode.c_str(),
                                  key_ref.filenames_mode.c_str()) == 0;
 }
@@ -326,13 +326,13 @@
             LOG(DEBUG) << "Installed de key for user " << user_id;
         }
     }
-    // ext4enc:TODO: go through all DE directories, ensure that all user dirs have the
+    // fscrypt:TODO: go through all DE directories, ensure that all user dirs have the
     // correct policy set on them, and that no rogue ones exist.
     return true;
 }
 
-bool e4crypt_initialize_global_de() {
-    LOG(INFO) << "e4crypt_initialize_global_de";
+bool fscrypt_initialize_global_de() {
+    LOG(INFO) << "fscrypt_initialize_global_de";
 
     if (s_global_de_initialized) {
         LOG(INFO) << "Already initialized";
@@ -346,13 +346,13 @@
     get_data_file_encryption_modes(&device_ref);
 
     std::string modestring = device_ref.contents_mode + ":" + device_ref.filenames_mode;
-    std::string mode_filename = std::string("/data") + e4crypt_key_mode;
+    std::string mode_filename = std::string("/data") + fscrypt_key_mode;
     if (!android::base::WriteStringToFile(modestring, mode_filename)) {
         PLOG(ERROR) << "Cannot save type";
         return false;
     }
 
-    std::string ref_filename = std::string("/data") + e4crypt_key_ref;
+    std::string ref_filename = std::string("/data") + fscrypt_key_ref;
     if (!android::base::WriteStringToFile(device_ref.key_raw_ref, ref_filename)) {
         PLOG(ERROR) << "Cannot save key reference to:" << ref_filename;
         return false;
@@ -363,9 +363,9 @@
     return true;
 }
 
-bool e4crypt_init_user0() {
-    LOG(DEBUG) << "e4crypt_init_user0";
-    if (e4crypt_is_native()) {
+bool fscrypt_init_user0() {
+    LOG(DEBUG) << "fscrypt_init_user0";
+    if (fscrypt_is_native()) {
         if (!prepare_dir(user_key_dir, 0700, AID_ROOT, AID_ROOT)) return false;
         if (!prepare_dir(user_key_dir + "/ce", 0700, AID_ROOT, AID_ROOT)) return false;
         if (!prepare_dir(user_key_dir + "/de", 0700, AID_ROOT, AID_ROOT)) return false;
@@ -379,28 +379,28 @@
     // We can only safely prepare DE storage here, since CE keys are probably
     // entangled with user credentials.  The framework will always prepare CE
     // storage once CE keys are installed.
-    if (!e4crypt_prepare_user_storage("", 0, 0, android::os::IVold::STORAGE_FLAG_DE)) {
+    if (!fscrypt_prepare_user_storage("", 0, 0, android::os::IVold::STORAGE_FLAG_DE)) {
         LOG(ERROR) << "Failed to prepare user 0 storage";
         return false;
     }
 
     // If this is a non-FBE device that recently left an emulated mode,
     // restore user data directories to known-good state.
-    if (!e4crypt_is_native() && !e4crypt_is_emulated()) {
-        e4crypt_unlock_user_key(0, 0, "!", "!");
+    if (!fscrypt_is_native() && !fscrypt_is_emulated()) {
+        fscrypt_unlock_user_key(0, 0, "!", "!");
     }
 
     return true;
 }
 
-bool e4crypt_vold_create_user_key(userid_t user_id, int serial, bool ephemeral) {
-    LOG(DEBUG) << "e4crypt_vold_create_user_key for " << user_id << " serial " << serial;
-    if (!e4crypt_is_native()) {
+bool fscrypt_vold_create_user_key(userid_t user_id, int serial, bool ephemeral) {
+    LOG(DEBUG) << "fscrypt_vold_create_user_key for " << user_id << " serial " << serial;
+    if (!fscrypt_is_native()) {
         return true;
     }
     // FIXME test for existence of key that is not loaded yet
     if (s_ce_key_raw_refs.count(user_id) != 0) {
-        LOG(ERROR) << "Already exists, can't e4crypt_vold_create_user_key for " << user_id
+        LOG(ERROR) << "Already exists, can't fscrypt_vold_create_user_key for " << user_id
                    << " serial " << serial;
         // FIXME should we fail the command?
         return true;
@@ -433,9 +433,9 @@
     return success;
 }
 
-bool e4crypt_destroy_user_key(userid_t user_id) {
-    LOG(DEBUG) << "e4crypt_destroy_user_key(" << user_id << ")";
-    if (!e4crypt_is_native()) {
+bool fscrypt_destroy_user_key(userid_t user_id) {
+    LOG(DEBUG) << "fscrypt_destroy_user_key(" << user_id << ")";
+    if (!fscrypt_is_native()) {
         return true;
     }
     bool success = true;
@@ -479,13 +479,13 @@
     if (chmod(path.c_str(), mode) != 0) {
         PLOG(ERROR) << "Failed to chmod " << path;
         // FIXME temporary workaround for b/26713622
-        if (e4crypt_is_emulated()) return false;
+        if (fscrypt_is_emulated()) return false;
     }
 #if EMULATED_USES_SELINUX
     if (selinux_android_restorecon(path.c_str(), SELINUX_ANDROID_RESTORECON_FORCE) != 0) {
         PLOG(WARNING) << "Failed to restorecon " << path;
         // FIXME temporary workaround for b/26713622
-        if (e4crypt_is_emulated()) return false;
+        if (fscrypt_is_emulated()) return false;
     }
 #endif
     return true;
@@ -548,11 +548,11 @@
     return android::vold::destroyKey(path);
 }
 
-bool e4crypt_add_user_key_auth(userid_t user_id, int serial, const std::string& token_hex,
+bool fscrypt_add_user_key_auth(userid_t user_id, int serial, const std::string& token_hex,
                                const std::string& secret_hex) {
-    LOG(DEBUG) << "e4crypt_add_user_key_auth " << user_id << " serial=" << serial
+    LOG(DEBUG) << "fscrypt_add_user_key_auth " << user_id << " serial=" << serial
                << " token_present=" << (token_hex != "!");
-    if (!e4crypt_is_native()) return true;
+    if (!fscrypt_is_native()) return true;
     if (s_ephemeral_users.count(user_id) != 0) return true;
     std::string token, secret;
     if (!parse_hex(token_hex, &token)) return false;
@@ -573,9 +573,9 @@
     return true;
 }
 
-bool e4crypt_fixate_newest_user_key_auth(userid_t user_id) {
-    LOG(DEBUG) << "e4crypt_fixate_newest_user_key_auth " << user_id;
-    if (!e4crypt_is_native()) return true;
+bool fscrypt_fixate_newest_user_key_auth(userid_t user_id) {
+    LOG(DEBUG) << "fscrypt_fixate_newest_user_key_auth " << user_id;
+    if (!fscrypt_is_native()) return true;
     if (s_ephemeral_users.count(user_id) != 0) return true;
     auto const directory_path = get_ce_key_directory_path(user_id);
     auto const paths = get_ce_key_paths(directory_path);
@@ -588,11 +588,11 @@
 }
 
 // TODO: rename to 'install' for consistency, and take flags to know which keys to install
-bool e4crypt_unlock_user_key(userid_t user_id, int serial, const std::string& token_hex,
+bool fscrypt_unlock_user_key(userid_t user_id, int serial, const std::string& token_hex,
                              const std::string& secret_hex) {
-    LOG(DEBUG) << "e4crypt_unlock_user_key " << user_id << " serial=" << serial
+    LOG(DEBUG) << "fscrypt_unlock_user_key " << user_id << " serial=" << serial
                << " token_present=" << (token_hex != "!");
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         if (s_ce_key_raw_refs.count(user_id) != 0) {
             LOG(WARNING) << "Tried to unlock already-unlocked key for user " << user_id;
             return true;
@@ -621,11 +621,11 @@
 }
 
 // TODO: rename to 'evict' for consistency
-bool e4crypt_lock_user_key(userid_t user_id) {
-    LOG(DEBUG) << "e4crypt_lock_user_key " << user_id;
-    if (e4crypt_is_native()) {
+bool fscrypt_lock_user_key(userid_t user_id) {
+    LOG(DEBUG) << "fscrypt_lock_user_key " << user_id;
+    if (fscrypt_is_native()) {
         return evict_ce_key(user_id);
-    } else if (e4crypt_is_emulated()) {
+    } else if (fscrypt_is_emulated()) {
         // When in emulation mode, we just use chmod
         if (!emulated_lock(android::vold::BuildDataSystemCePath(user_id)) ||
             !emulated_lock(android::vold::BuildDataMiscCePath(user_id)) ||
@@ -650,9 +650,9 @@
     return true;
 }
 
-bool e4crypt_prepare_user_storage(const std::string& volume_uuid, userid_t user_id, int serial,
+bool fscrypt_prepare_user_storage(const std::string& volume_uuid, userid_t user_id, int serial,
                                   int flags) {
-    LOG(DEBUG) << "e4crypt_prepare_user_storage for volume " << escape_empty(volume_uuid)
+    LOG(DEBUG) << "fscrypt_prepare_user_storage for volume " << escape_empty(volume_uuid)
                << ", user " << user_id << ", serial " << serial << ", flags " << flags;
 
     if (flags & android::os::IVold::STORAGE_FLAG_DE) {
@@ -682,7 +682,7 @@
         }
         if (!prepare_dir(user_de_path, 0771, AID_SYSTEM, AID_SYSTEM)) return false;
 
-        if (e4crypt_is_native()) {
+        if (fscrypt_is_native()) {
             PolicyKeyRef de_ref;
             if (volume_uuid.empty()) {
                 if (!lookup_key_ref(s_de_key_raw_refs, user_id, &de_ref.key_raw_ref)) return false;
@@ -713,7 +713,7 @@
         if (!prepare_dir(media_ce_path, 0770, AID_MEDIA_RW, AID_MEDIA_RW)) return false;
         if (!prepare_dir(user_ce_path, 0771, AID_SYSTEM, AID_SYSTEM)) return false;
 
-        if (e4crypt_is_native()) {
+        if (fscrypt_is_native()) {
             PolicyKeyRef ce_ref;
             if (volume_uuid.empty()) {
                 if (!lookup_key_ref(s_ce_key_raw_refs, user_id, &ce_ref.key_raw_ref)) return false;
@@ -742,8 +742,8 @@
     return true;
 }
 
-bool e4crypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags) {
-    LOG(DEBUG) << "e4crypt_destroy_user_storage for volume " << escape_empty(volume_uuid)
+bool fscrypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags) {
+    LOG(DEBUG) << "fscrypt_destroy_user_storage for volume " << escape_empty(volume_uuid)
                << ", user " << user_id << ", flags " << flags;
     bool res = true;
 
@@ -764,7 +764,7 @@
             res &= destroy_dir(misc_ce_path);
             res &= destroy_dir(vendor_ce_path);
         } else {
-            if (e4crypt_is_native()) {
+            if (fscrypt_is_native()) {
                 res &= destroy_volkey(misc_ce_path, volume_uuid);
             }
         }
@@ -793,7 +793,7 @@
             res &= destroy_dir(misc_de_path);
             res &= destroy_dir(vendor_de_path);
         } else {
-            if (e4crypt_is_native()) {
+            if (fscrypt_is_native()) {
                 res &= destroy_volkey(misc_de_path, volume_uuid);
             }
         }
@@ -828,9 +828,9 @@
     return res;
 }
 
-bool e4crypt_destroy_volume_keys(const std::string& volume_uuid) {
+bool fscrypt_destroy_volume_keys(const std::string& volume_uuid) {
     bool res = true;
-    LOG(DEBUG) << "e4crypt_destroy_volume_keys for volume " << escape_empty(volume_uuid);
+    LOG(DEBUG) << "fscrypt_destroy_volume_keys for volume " << escape_empty(volume_uuid);
     auto secdiscardable_path = volume_secdiscardable_path(volume_uuid);
     res &= android::vold::runSecdiscardSingle(secdiscardable_path);
     res &= destroy_volume_keys("/data/misc_ce", volume_uuid);
diff --git a/Ext4Crypt.h b/FsCrypt.h
similarity index 61%
rename from Ext4Crypt.h
rename to FsCrypt.h
index a43a68a..16e2f9a 100644
--- a/Ext4Crypt.h
+++ b/FsCrypt.h
@@ -18,21 +18,21 @@
 
 #include <cutils/multiuser.h>
 
-bool e4crypt_initialize_global_de();
+bool fscrypt_initialize_global_de();
 
-bool e4crypt_init_user0();
-bool e4crypt_vold_create_user_key(userid_t user_id, int serial, bool ephemeral);
-bool e4crypt_destroy_user_key(userid_t user_id);
-bool e4crypt_add_user_key_auth(userid_t user_id, int serial, const std::string& token,
+bool fscrypt_init_user0();
+bool fscrypt_vold_create_user_key(userid_t user_id, int serial, bool ephemeral);
+bool fscrypt_destroy_user_key(userid_t user_id);
+bool fscrypt_add_user_key_auth(userid_t user_id, int serial, const std::string& token,
                                const std::string& secret);
-bool e4crypt_fixate_newest_user_key_auth(userid_t user_id);
+bool fscrypt_fixate_newest_user_key_auth(userid_t user_id);
 
-bool e4crypt_unlock_user_key(userid_t user_id, int serial, const std::string& token,
+bool fscrypt_unlock_user_key(userid_t user_id, int serial, const std::string& token,
                              const std::string& secret);
-bool e4crypt_lock_user_key(userid_t user_id);
+bool fscrypt_lock_user_key(userid_t user_id);
 
-bool e4crypt_prepare_user_storage(const std::string& volume_uuid, userid_t user_id, int serial,
+bool fscrypt_prepare_user_storage(const std::string& volume_uuid, userid_t user_id, int serial,
                                   int flags);
-bool e4crypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags);
+bool fscrypt_destroy_user_storage(const std::string& volume_uuid, userid_t user_id, int flags);
 
-bool e4crypt_destroy_volume_keys(const std::string& volume_uuid);
+bool fscrypt_destroy_volume_keys(const std::string& volume_uuid);
diff --git a/KeyUtil.cpp b/KeyUtil.cpp
index 29ba699..252edeb 100644
--- a/KeyUtil.cpp
+++ b/KeyUtil.cpp
@@ -32,22 +32,19 @@
 namespace android {
 namespace vold {
 
-// ext4enc:TODO get this const from somewhere good
-const int EXT4_KEY_DESCRIPTOR_SIZE = 8;
-
-// ext4enc:TODO Include structure from somewhere sensible
-// MUST be in sync with ext4_crypto.c in kernel
-constexpr int EXT4_ENCRYPTION_MODE_AES_256_XTS = 1;
-constexpr int EXT4_AES_256_XTS_KEY_SIZE = 64;
-constexpr int EXT4_MAX_KEY_SIZE = 64;
-struct ext4_encryption_key {
+// fscrypt:TODO get these definitions from <linux/fs.h>
+constexpr int FS_KEY_DESCRIPTOR_SIZE = 8;
+constexpr int FS_ENCRYPTION_MODE_AES_256_XTS = 1;
+constexpr int FS_AES_256_XTS_KEY_SIZE = 64;
+constexpr int FS_MAX_KEY_SIZE = 64;
+struct fscrypt_key {
     uint32_t mode;
-    char raw[EXT4_MAX_KEY_SIZE];
+    char raw[FS_MAX_KEY_SIZE];
     uint32_t size;
 };
 
 bool randomKey(KeyBuffer* key) {
-    *key = KeyBuffer(EXT4_AES_256_XTS_KEY_SIZE);
+    *key = KeyBuffer(FS_AES_256_XTS_KEY_SIZE);
     if (ReadRandomBytes(key->size(), key->data()) != 0) {
         // TODO status_t plays badly with PLOG, fix it.
         LOG(ERROR) << "Random read failed";
@@ -70,21 +67,20 @@
     unsigned char key_ref2[SHA512_DIGEST_LENGTH];
     SHA512_Final(key_ref2, &c);
 
-    static_assert(EXT4_KEY_DESCRIPTOR_SIZE <= SHA512_DIGEST_LENGTH,
-                  "Hash too short for descriptor");
-    return std::string((char*)key_ref2, EXT4_KEY_DESCRIPTOR_SIZE);
+    static_assert(FS_KEY_DESCRIPTOR_SIZE <= SHA512_DIGEST_LENGTH, "Hash too short for descriptor");
+    return std::string((char*)key_ref2, FS_KEY_DESCRIPTOR_SIZE);
 }
 
-static bool fillKey(const KeyBuffer& key, ext4_encryption_key* ext4_key) {
-    if (key.size() != EXT4_AES_256_XTS_KEY_SIZE) {
+static bool fillKey(const KeyBuffer& key, fscrypt_key* fs_key) {
+    if (key.size() != FS_AES_256_XTS_KEY_SIZE) {
         LOG(ERROR) << "Wrong size key " << key.size();
         return false;
     }
-    static_assert(EXT4_AES_256_XTS_KEY_SIZE <= sizeof(ext4_key->raw), "Key too long!");
-    ext4_key->mode = EXT4_ENCRYPTION_MODE_AES_256_XTS;
-    ext4_key->size = key.size();
-    memset(ext4_key->raw, 0, sizeof(ext4_key->raw));
-    memcpy(ext4_key->raw, key.data(), key.size());
+    static_assert(FS_AES_256_XTS_KEY_SIZE <= sizeof(fs_key->raw), "Key too long!");
+    fs_key->mode = FS_ENCRYPTION_MODE_AES_256_XTS;
+    fs_key->size = key.size();
+    memset(fs_key->raw, 0, sizeof(fs_key->raw));
+    memcpy(fs_key->raw, key.data(), key.size());
     return true;
 }
 
@@ -100,8 +96,8 @@
 }
 
 // Get the keyring we store all keys in
-static bool e4cryptKeyring(key_serial_t* device_keyring) {
-    *device_keyring = keyctl_search(KEY_SPEC_SESSION_KEYRING, "keyring", "e4crypt", 0);
+static bool fscryptKeyring(key_serial_t* device_keyring) {
+    *device_keyring = keyctl_search(KEY_SPEC_SESSION_KEYRING, "keyring", "fscrypt", 0);
     if (*device_keyring == -1) {
         PLOG(ERROR) << "Unable to find device keyring";
         return false;
@@ -112,18 +108,18 @@
 // Install password into global keyring
 // Return raw key reference for use in policy
 bool installKey(const KeyBuffer& key, std::string* raw_ref) {
-    // Place ext4_encryption_key into automatically zeroing buffer.
-    KeyBuffer ext4KeyBuffer(sizeof(ext4_encryption_key));
-    ext4_encryption_key& ext4_key = *reinterpret_cast<ext4_encryption_key*>(ext4KeyBuffer.data());
+    // Place fscrypt_key into automatically zeroing buffer.
+    KeyBuffer fsKeyBuffer(sizeof(fscrypt_key));
+    fscrypt_key& fs_key = *reinterpret_cast<fscrypt_key*>(fsKeyBuffer.data());
 
-    if (!fillKey(key, &ext4_key)) return false;
-    *raw_ref = generateKeyRef(ext4_key.raw, ext4_key.size);
+    if (!fillKey(key, &fs_key)) return false;
+    *raw_ref = generateKeyRef(fs_key.raw, fs_key.size);
     key_serial_t device_keyring;
-    if (!e4cryptKeyring(&device_keyring)) return false;
+    if (!fscryptKeyring(&device_keyring)) return false;
     for (char const* const* name_prefix = NAME_PREFIXES; *name_prefix != nullptr; name_prefix++) {
         auto ref = keyname(*name_prefix, *raw_ref);
         key_serial_t key_id =
-            add_key("logon", ref.c_str(), (void*)&ext4_key, sizeof(ext4_key), device_keyring);
+            add_key("logon", ref.c_str(), (void*)&fs_key, sizeof(fs_key), device_keyring);
         if (key_id == -1) {
             PLOG(ERROR) << "Failed to insert key into keyring " << device_keyring;
             return false;
@@ -136,7 +132,7 @@
 
 bool evictKey(const std::string& raw_ref) {
     key_serial_t device_keyring;
-    if (!e4cryptKeyring(&device_keyring)) return false;
+    if (!fscryptKeyring(&device_keyring)) return false;
     bool success = true;
     for (char const* const* name_prefix = NAME_PREFIXES; *name_prefix != nullptr; name_prefix++) {
         auto ref = keyname(*name_prefix, raw_ref);
diff --git a/MetadataCrypt.cpp b/MetadataCrypt.cpp
index 0934563..e156424 100644
--- a/MetadataCrypt.cpp
+++ b/MetadataCrypt.cpp
@@ -194,11 +194,11 @@
     return true;
 }
 
-bool e4crypt_mount_metadata_encrypted(const std::string& mount_point, bool needs_encrypt) {
-    LOG(DEBUG) << "e4crypt_mount_metadata_encrypted: " << mount_point << " " << needs_encrypt;
+bool fscrypt_mount_metadata_encrypted(const std::string& mount_point, bool needs_encrypt) {
+    LOG(DEBUG) << "fscrypt_mount_metadata_encrypted: " << mount_point << " " << needs_encrypt;
     auto encrypted_state = android::base::GetProperty("ro.crypto.state", "");
     if (encrypted_state != "") {
-        LOG(DEBUG) << "e4crypt_enable_crypto got unexpected starting state: " << encrypted_state;
+        LOG(DEBUG) << "fscrypt_enable_crypto got unexpected starting state: " << encrypted_state;
         return false;
     }
     auto data_rec = fs_mgr_get_entry_for_mount_point(fstab_default, mount_point);
diff --git a/MetadataCrypt.h b/MetadataCrypt.h
index 841dc97..d82a43b 100644
--- a/MetadataCrypt.h
+++ b/MetadataCrypt.h
@@ -19,6 +19,6 @@
 
 #include <string>
 
-bool e4crypt_mount_metadata_encrypted(const std::string& mount_point, bool needs_encrypt);
+bool fscrypt_mount_metadata_encrypted(const std::string& mount_point, bool needs_encrypt);
 
 #endif
diff --git a/VoldNativeService.cpp b/VoldNativeService.cpp
index 5529f67..2696e30 100644
--- a/VoldNativeService.cpp
+++ b/VoldNativeService.cpp
@@ -25,7 +25,7 @@
 #include "VolumeManager.h"
 
 #include "Checkpoint.h"
-#include "Ext4Crypt.h"
+#include "FsCrypt.h"
 #include "MetadataCrypt.h"
 #include "cryptfs.h"
 
@@ -35,8 +35,8 @@
 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
-#include <ext4_utils/ext4_crypt.h>
 #include <fs_mgr.h>
+#include <fscrypt/fscrypt.h>
 #include <private/android_filesystem_config.h>
 #include <utils/Trace.h>
 
@@ -699,11 +699,11 @@
     ACQUIRE_CRYPT_LOCK;
 
     LOG(DEBUG) << "fdeEnable(" << passwordType << ", *, " << encryptionFlags << ")";
-    if (e4crypt_is_native()) {
-        LOG(ERROR) << "e4crypt_is_native, fdeEnable invalid";
-        return error("e4crypt_is_native, fdeEnable invalid");
+    if (fscrypt_is_native()) {
+        LOG(ERROR) << "fscrypt_is_native, fdeEnable invalid";
+        return error("fscrypt_is_native, fdeEnable invalid");
     }
-    LOG(DEBUG) << "!e4crypt_is_native, spawning fdeEnableInternal";
+    LOG(DEBUG) << "!fscrypt_is_native, spawning fdeEnableInternal";
 
     // Spawn as thread so init can issue commands back to vold without
     // causing deadlock, usually as a result of prep_data_fs.
@@ -777,14 +777,14 @@
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_initialize_global_de());
+    return translateBool(fscrypt_initialize_global_de());
 }
 
 binder::Status VoldNativeService::mountDefaultEncrypted() {
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    if (!e4crypt_is_native()) {
+    if (!fscrypt_is_native()) {
         // Spawn as thread so init can issue commands back to vold without
         // causing deadlock, usually as a result of prep_data_fs.
         std::thread(&cryptfs_mount_default_encrypted).detach();
@@ -796,7 +796,7 @@
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_init_user0());
+    return translateBool(fscrypt_init_user0());
 }
 
 binder::Status VoldNativeService::isConvertibleToFbe(bool* _aidl_return) {
@@ -811,28 +811,28 @@
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_LOCK;
 
-    return translateBool(e4crypt_mount_metadata_encrypted(mountPoint, false));
+    return translateBool(fscrypt_mount_metadata_encrypted(mountPoint, false));
 }
 
 binder::Status VoldNativeService::encryptFstab(const std::string& mountPoint) {
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_LOCK;
 
-    return translateBool(e4crypt_mount_metadata_encrypted(mountPoint, true));
+    return translateBool(fscrypt_mount_metadata_encrypted(mountPoint, true));
 }
 
 binder::Status VoldNativeService::createUserKey(int32_t userId, int32_t userSerial, bool ephemeral) {
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_vold_create_user_key(userId, userSerial, ephemeral));
+    return translateBool(fscrypt_vold_create_user_key(userId, userSerial, ephemeral));
 }
 
 binder::Status VoldNativeService::destroyUserKey(int32_t userId) {
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_destroy_user_key(userId));
+    return translateBool(fscrypt_destroy_user_key(userId));
 }
 
 binder::Status VoldNativeService::addUserKeyAuth(int32_t userId, int32_t userSerial,
@@ -841,14 +841,14 @@
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_add_user_key_auth(userId, userSerial, token, secret));
+    return translateBool(fscrypt_add_user_key_auth(userId, userSerial, token, secret));
 }
 
 binder::Status VoldNativeService::fixateNewestUserKeyAuth(int32_t userId) {
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_fixate_newest_user_key_auth(userId));
+    return translateBool(fscrypt_fixate_newest_user_key_auth(userId));
 }
 
 binder::Status VoldNativeService::unlockUserKey(int32_t userId, int32_t userSerial,
@@ -857,14 +857,14 @@
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_unlock_user_key(userId, userSerial, token, secret));
+    return translateBool(fscrypt_unlock_user_key(userId, userSerial, token, secret));
 }
 
 binder::Status VoldNativeService::lockUserKey(int32_t userId) {
     ENFORCE_UID(AID_SYSTEM);
     ACQUIRE_CRYPT_LOCK;
 
-    return translateBool(e4crypt_lock_user_key(userId));
+    return translateBool(fscrypt_lock_user_key(userId));
 }
 
 binder::Status VoldNativeService::prepareUserStorage(const std::unique_ptr<std::string>& uuid,
@@ -876,7 +876,7 @@
     CHECK_ARGUMENT_HEX(uuid_);
 
     ACQUIRE_CRYPT_LOCK;
-    return translateBool(e4crypt_prepare_user_storage(uuid_, userId, userSerial, flags));
+    return translateBool(fscrypt_prepare_user_storage(uuid_, userId, userSerial, flags));
 }
 
 binder::Status VoldNativeService::destroyUserStorage(const std::unique_ptr<std::string>& uuid,
@@ -887,7 +887,7 @@
     CHECK_ARGUMENT_HEX(uuid_);
 
     ACQUIRE_CRYPT_LOCK;
-    return translateBool(e4crypt_destroy_user_storage(uuid_, userId, flags));
+    return translateBool(fscrypt_destroy_user_storage(uuid_, userId, flags));
 }
 
 binder::Status VoldNativeService::prepareSandboxForApp(const std::string& packageName,
diff --git a/VolumeManager.cpp b/VolumeManager.cpp
index d38052d..e6e37fa 100644
--- a/VolumeManager.cpp
+++ b/VolumeManager.cpp
@@ -49,10 +49,10 @@
 
 #include <private/android_filesystem_config.h>
 
-#include <ext4_utils/ext4_crypt.h>
+#include <fscrypt/fscrypt.h>
 
 #include "Devmapper.h"
-#include "Ext4Crypt.h"
+#include "FsCrypt.h"
 #include "Loop.h"
 #include "NetlinkManager.h"
 #include "Process.h"
@@ -338,8 +338,8 @@
         LOG(ERROR) << "Failed to unlink " << keyPath;
         success = false;
     }
-    if (e4crypt_is_native()) {
-        if (!e4crypt_destroy_volume_keys(fsUuid)) {
+    if (fscrypt_is_native()) {
+        if (!fscrypt_destroy_volume_keys(fsUuid)) {
             success = false;
         }
     }
diff --git a/cryptfs.cpp b/cryptfs.cpp
index 558b447..dae2bf7 100644
--- a/cryptfs.cpp
+++ b/cryptfs.cpp
@@ -26,7 +26,7 @@
 
 #include "Checkpoint.h"
 #include "EncryptInplace.h"
-#include "Ext4Crypt.h"
+#include "FsCrypt.h"
 #include "Keymaster.h"
 #include "Process.h"
 #include "ScryptParameters.h"
@@ -38,10 +38,10 @@
 #include <bootloader_message/bootloader_message.h>
 #include <cutils/android_reboot.h>
 #include <cutils/properties.h>
-#include <ext4_utils/ext4_crypt.h>
 #include <ext4_utils/ext4_utils.h>
 #include <f2fs_sparseblock.h>
 #include <fs_mgr.h>
+#include <fscrypt/fscrypt.h>
 #include <hardware_legacy/power.h>
 #include <log/log.h>
 #include <logwrap/logwrap.h>
@@ -1606,7 +1606,7 @@
 
 int cryptfs_restart(void) {
     SLOGI("cryptfs_restart");
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("cryptfs_restart not valid for file encryption:");
         return -1;
     }
@@ -1627,7 +1627,7 @@
     }
 
     // crypto_complete is full disk encrypted status
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         return CRYPTO_COMPLETE_NOT_ENCRYPTED;
     }
 
@@ -1823,7 +1823,7 @@
     strlcpy((char*)ext_crypt_ftr.crypto_type_name, cryptfs_get_crypto_name(),
             MAX_CRYPTO_TYPE_NAME_LEN);
     uint32_t flags = 0;
-    if (e4crypt_is_native() &&
+    if (fscrypt_is_native() &&
         android::base::GetBoolProperty("ro.crypto.allow_encrypt_override", false))
         flags |= CREATE_CRYPTO_BLK_DEV_FLAGS_ALLOW_ENCRYPT_OVERRIDE;
 
@@ -1862,7 +1862,7 @@
 
 int cryptfs_check_passwd(const char* passwd) {
     SLOGI("cryptfs_check_passwd");
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("cryptfs_check_passwd not valid for file encryption");
         return -1;
     }
@@ -2407,7 +2407,7 @@
 }
 
 int cryptfs_changepw(int crypt_type, const char* newpw) {
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("cryptfs_changepw not valid for file encryption");
         return -1;
     }
@@ -2603,7 +2603,7 @@
 
 /* Return the value of the specified field. */
 int cryptfs_getfield(const char* fieldname, char* value, int len) {
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("Cannot get field when file encrypted");
         return -1;
     }
@@ -2668,7 +2668,7 @@
 
 /* Set the value of the specified field. */
 int cryptfs_setfield(const char* fieldname, const char* value) {
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("Cannot set field when file encrypted");
         return -1;
     }
@@ -2788,7 +2788,7 @@
 /* Returns type of the password, default, pattern, pin or password.
  */
 int cryptfs_get_password_type(void) {
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("cryptfs_get_password_type not valid for file encryption");
         return -1;
     }
@@ -2808,7 +2808,7 @@
 }
 
 const char* cryptfs_get_password() {
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         SLOGE("cryptfs_get_password not valid for file encryption");
         return 0;
     }
diff --git a/fs/Ext4.cpp b/fs/Ext4.cpp
index 7ac4853..806cfd1 100644
--- a/fs/Ext4.cpp
+++ b/fs/Ext4.cpp
@@ -36,12 +36,12 @@
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <cutils/properties.h>
-#include <ext4_utils/ext4_crypt.h>
+#include <fscrypt/fscrypt.h>
 #include <logwrap/logwrap.h>
 #include <selinux/selinux.h>
 
 #include "Ext4.h"
-#include "Ext4Crypt.h"
+#include "FsCrypt.h"
 #include "Utils.h"
 #include "VoldUtil.h"
 
@@ -175,7 +175,7 @@
     if (android::base::GetBoolProperty("vold.has_quota", false)) {
         options += ",quota";
     }
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         options += ",encrypt";
     }
 
diff --git a/fs/F2fs.cpp b/fs/F2fs.cpp
index 9d72963..c6e0f52 100644
--- a/fs/F2fs.cpp
+++ b/fs/F2fs.cpp
@@ -20,7 +20,7 @@
 #include <android-base/logging.h>
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
-#include <ext4_utils/ext4_crypt.h>
+#include <fscrypt/fscrypt.h>
 
 #include <string>
 #include <vector>
@@ -81,7 +81,7 @@
         cmd.push_back("-O");
         cmd.push_back("quota");
     }
-    if (e4crypt_is_native()) {
+    if (fscrypt_is_native()) {
         cmd.push_back("-O");
         cmd.push_back("encrypt");
     }
diff --git a/model/Disk.cpp b/model/Disk.cpp
index 2b6773d..3d25e4c 100644
--- a/model/Disk.cpp
+++ b/model/Disk.cpp
@@ -15,7 +15,7 @@
  */
 
 #include "Disk.h"
-#include "Ext4Crypt.h"
+#include "FsCrypt.h"
 #include "PrivateVolume.h"
 #include "PublicVolume.h"
 #include "Utils.h"
@@ -28,7 +28,7 @@
 #include <android-base/properties.h>
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
-#include <ext4_utils/ext4_crypt.h>
+#include <fscrypt/fscrypt.h>
 
 #include "cryptfs.h"