Create, mount and unmount app data mirror directory

- When volume is ready, system/installd will
create app data mirror, and bind mount it the actual CE storage for
that app.

- When a new private volume is mounted, DE mirror will be created and
mounted.

- When a private volume is unmounted, all users CE mirror will be
unmounted and DE mirror will be unmounted also.

- Fix inode createAppData() return a wrong inode number in 32bit system.

Bug: 143937733
Bug: 145989852
Test: After reboot, all apps mirror CE directories are created and
mounted
Test: After adding a new private volume, new CE DE mirror for that volume
are created and mounted.
Test: After unmounting a private volume, that vol CE DE mirror are
unmounted.
Change-Id: I8a06ae8917e5f2c7f1f905b73ec934de7f1ee802

1 files changed, 4 insertions, 0 deletions

diff --git a/cmds/installd/QuotaUtils.cpp b/cmds/installd/QuotaUtils.cpp
index b238dd36e3..a71e01c943 100644
--- a/cmds/installd/QuotaUtils.cpp
+++ b/cmds/installd/QuotaUtils.cpp
@@ -61,6 +61,10 @@ bool InvalidateQuotaMounts() {
         std::getline(in, target, ' ');
         std::getline(in, ignored);
 
+        if (target.compare(0, 13, "/data_mirror/") == 0) {
+            continue;
+        }
+
         if (source.compare(0, 11, "/dev/block/") == 0) {
             struct dqblk dq;
             if (quotactl(QCMD(Q_GETQUOTA, USRQUOTA), source.c_str(), 0,