From 4196e0fa5e0c6b2a27ee5626f4cfa22375ac6ea1 Mon Sep 17 00:00:00 2001
From: Koushik Dutta <koushd@gmail.com>
Date: Sun, 19 Dec 2010 03:38:29 -0800
Subject: [PATCH] bml devices that are using rfs are automatically upgraded to
 ext4. Version 3.0.0.0.

Change-Id: I069f0c5122e8d48ce311f519f08890d3e569dbb3
---
 Android.mk         |  2 +-
 common.h           |  1 +
 extendedcommands.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++
 recovery.c         |  2 +-
 roots.c            | 19 ++++-------------
 5 files changed, 59 insertions(+), 17 deletions(-)

diff --git a/Android.mk b/Android.mk
index 6d94c17..e4a3ad0 100644
--- a/Android.mk
+++ b/Android.mk
@@ -25,7 +25,7 @@ LOCAL_MODULE := recovery
 
 LOCAL_FORCE_STATIC_EXECUTABLE := true
 
-RECOVERY_VERSION := ClockworkMod Recovery v2.5.1.8
+RECOVERY_VERSION := ClockworkMod Recovery v3.0.0.0
 LOCAL_CFLAGS += -DRECOVERY_VERSION="$(RECOVERY_VERSION)"
 RECOVERY_API_VERSION := 2
 LOCAL_CFLAGS += -DRECOVERY_API_VERSION=$(RECOVERY_API_VERSION)
diff --git a/common.h b/common.h
index 7d46cc0..a4acc39 100644
--- a/common.h
+++ b/common.h
@@ -112,6 +112,7 @@ typedef struct {
     const char* device2;      // alternative device to try if fs_type
                               // == "ext4" or "vfat" and mounting
                               // 'device' fails
+    const char* fallback_fs_type;
 } Volume;
 
 #endif  // RECOVERY_COMMON_H
diff --git a/extendedcommands.c b/extendedcommands.c
index 762b15a..7c97979 100644
--- a/extendedcommands.c
+++ b/extendedcommands.c
@@ -914,6 +914,58 @@ void create_fstab()
     LOGI("Completed outputting fstab.\n");
 }
 
+int bml_check_volume(const char *path) {
+    ui_print("Checking %s...\n", path);
+    ensure_path_unmounted(path);
+    if (0 == ensure_path_mounted(path)) {
+        ensure_path_unmounted(path);
+        return 0;
+    }
+    
+    Volume *vol = volume_for_path(path);
+    if (vol == NULL) {
+        LOGE("Unable process volume! Skipping...\n");
+        return 0;
+    }
+    
+    ui_print("%s may be rfs. Checking...\n");
+    char tmp[PATH_MAX];
+    sprintf(tmp, "mount -t rfs %s %s", vol->device, path);
+    int ret = __system(tmp);
+    printf("%d\n", ret);
+    return ret == 0 ? 1 : 0;
+}
+
+void process_volumes() {
+    create_fstab();
+    
+    if (device_flash_type() != BML)
+        return;
+
+    ui_print("Checking for ext4 partitions...\n");
+    int ret = 0;
+    ret = bml_check_volume("/system");
+    ret |= bml_check_volume("/data");
+    if (has_datadata())
+        ret |= bml_check_volume("/datadata");
+    ret |= bml_check_volume("/cache");
+    
+    if (ret == 0) {
+        ui_print("Done!\n");
+        return;
+    }
+    
+    ui_set_show_text(1);
+    ui_print("Filesystems need to be converted to ext4.\n");
+    ui_print("A backup and restore will now take place.\n");
+    ui_print("If anything goes wrong, your back will be\n");
+    ui_print("named before-ext4-convert.\n");
+
+    nandroid_backup("/sdcard/clockworkmod/backup/before-ext4-convert");
+    nandroid_restore("/sdcard/clockworkmod/backup/before-ext4-convert", 1, 1, 1, 1, 1);
+    ui_set_show_text(0);
+}
+
 void handle_failure(int ret)
 {
     if (ret == 0)
diff --git a/recovery.c b/recovery.c
index e1641c0..5e25e68 100644
--- a/recovery.c
+++ b/recovery.c
@@ -795,7 +795,7 @@ main(int argc, char **argv) {
     ui_init();
     ui_print(EXPAND(RECOVERY_VERSION)"\n");
     load_volume_table();
-    create_fstab();
+    process_volumes();
     LOGI("Processing arguments.\n");
     get_args(&argc, &argv);
 
diff --git a/roots.c b/roots.c
index bfb828f..45e0727 100644
--- a/roots.c
+++ b/roots.c
@@ -160,21 +160,10 @@ int ensure_path_mounted(const char* path) {
         LOGE("failed to mount %s (%s)\n", v->mount_point, strerror(errno));
         return -1;
     } else {
-        // let's just give it a shot and see what happens...
-        result = mount(v->device, v->mount_point, v->fs_type,
-                       MS_NOATIME | MS_NODEV | MS_NODIRATIME, "");
-        if (result == 0) return 0;
-
-        if (v->device2) {
-            LOGW("failed to mount %s (%s); trying %s\n",
-                 v->device, strerror(errno), v->device2);
-            result = mount(v->device2, v->mount_point, v->fs_type,
-                           MS_NOATIME | MS_NODEV | MS_NODIRATIME, "");
-            if (result == 0) return 0;
-        }
-
-        LOGE("failed to mount %s (%s)\n", v->mount_point, strerror(errno));
-        return -1;
+        // let's try mounting with the mount binary and hope for the best.
+        char mount_cmd[PATH_MAX];
+        sprintf(mount_cmd, "mount %s", path);
+        return __system(mount_cmd);
     }
 
     LOGE("unknown fs_type \"%s\" for %s\n", v->fs_type, v->mount_point);