This fixes a bug in Android T where MediaProvider leaked FUSE fds in
it's process preveventing it from dying after being killed. This
resulted in the MP in a zombie state.
Even though, this bug was more prevalent in Android T due to a change
in the Parcel lifecycle (see b/233216232), this bug could have always
occurred in theory.
This fix should be harmless since after volume reset, all FUSE volumes
should be unmounted and aborting the FUSE connections will either
no-op or actually prevent the FUSE daemon from getting wedged in a
zombie state.
Test: Manually trigger a FUSE fd leak in the MediaProvider, kill it
and verify that it is restarted without zombie.
Bug: 233216232
Bug: 231792374
Bug: 230445008
Change-Id: I9e559a48b9a72e6ecbc3a277a09ea5d34c9ec499
When it is stuck in runDevGC() for an unexpected reason, now it cannot
prevent the other callers from entering into it again. Fix it.
Bug: 232297944
Test: run "sm idle-maint run" twice & check whether they are overlapped
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Change-Id: I785c8aeebd8fcf58c34d9be9968d99634d0b420a
Having prepare_dir() and EnsurePolicy() be separate operations is
error-prone; it lengthens the window of time that files could
accidentally be created in new directories before they are encrypted,
and it makes it easier to accidentally never encrypt a directory.
To partially address this, add a function prepare_dir_with_policy() that
combines the two steps, and use it everywhere possible. This function
is now the only place in vold that calls EnsurePolicy().
As a follow-up change, we could go a bit further and make this helper
function create the directory under a temporary name and move it into
place already-encrypted. This change just focuses on getting the helper
function in place, without changing the behavior too much.
Change-Id: I98ab345df235120db6727f7dbe0da6a8b6ef2579
Prepare these directories during initUser0. This greatly shortens the
gap between the creation and encryption of /data/user/0, and this makes
it possible to remove init's write access to all directories containing
per-user encrypted directories.
Bug: 156305599
Change-Id: Ibf3d25356e8f0bca70da078c5d2428ae8615240e
There is no reason for this function to sometimes return the legacy
alias "/data/data" for /data/user/0. Just use /data/user/0 instead.
Bug: 156305599
Change-Id: I305a9463c1bf0a59495c34ef33430f92257c2f0d
Make vold explicitly set the appropriate fscreate SELinux context when
creating per-user subdirectories such as /data/user/$userId. This is
needed for these subdirectories to get the correct SELinux labels after
the sepolicy change https://r.android.com/2078213 changes their parent
directories to have different labels.
Note: the helper function being changed is also used for some other
directories, such as subdirectories of /data/misc/vold. But this is
fine since they still get the same labels as before.
Test: see https://r.android.com/2078213
Bug: 156305599
Change-Id: Id61c2d985144007059c563cec91b1355176e915c
Before doing anything else in fscrypt_prepare_user_storage(), error out
if adoptable storage is being prepared before internal storage. Without
this explicit check, making this mistake results in a sequence of weird
errors that is hard to trace back to the actual problem.
Bug: 231387956
Change-Id: Ib26cc1bd46ffa2578f6f0156dfacc5496dae3178
The flag -warnings-as-errors embedded in tidy_flags
is difficult to process and error-prone.
They should be replaced with the new tidy_checks_as_errors list.
Bug: 229801437
Test: make tidy-system-vold
Change-Id: I801e73dce5f08fe1ca5bc49de633706ad2cdf986
* changes:
vold: remove overprovision area from free segments
vold: do not set gc sleep time with zero dirty segments
vold: add gc period in setGCUrgentPace
overprovision space and reserved area should be subtracted when we
calculate free segments count in GC for data blocks.
Test: check Vold setGCUrgentPace log
Bug: 202283480
Bug: 181079477
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Change-Id: I7b749588ff794ff0429e17a787d83bcc19af0ec1
It enables encrypt, proejct_quota, verity by default.
Bug: 225401790
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: I6c6dc81b8e62b20b0107d40a9ed5b645cdafbda1
