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Commit df8cf188 authored by Mark Salyzyn's avatar Mark Salyzyn
Browse files

fs_mgr: overlayfs: if existing scratch mountpoint is system_empty 

On first mount check if overlays are setup, if not and there is
no space, then umount and make a filesystem and try again.

Test: adb_remount_test.sh
Bug: 119885423
Change-Id: I3a76ff5b53474976f72e9db326b26838f7df5ba8
parent c08c8080

fs_mgr/fs_mgr_overlayfs.cpp

+8 −2
Original line number Diff line number Diff line
@@ -751,9 +751,15 @@ bool fs_mgr_overlayfs_setup_scratch(const Fstab& fstab, bool* change) { 
    auto mnt_type = fs_mgr_overlayfs_scratch_mount_type();

    if (partition_exists) {

        if (fs_mgr_overlayfs_mount_scratch(scratch_device, mnt_type)) {

            if (!fs_mgr_access(kScratchMountPoint + kOverlayTopDir) &&

                !fs_mgr_filesystem_has_space(kScratchMountPoint)) {

                // declare it useless, no overrides and no free space

                fs_mgr_overlayfs_umount_scratch();

            } else {

                if (change) *change = true;

                return true;

            }

        }

        // partition existed, but was not initialized; fall through to make it.

        errno = 0;

    }