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emmc_optimized means stable_inodes 

If the emmc_optimized filesystem flag is set, then like
inlinecrypt_optimized, we have to ensure that stable_inodes is set
on the filesystem.

Bug: 144046242
Test: Cuttlefish, ext4: set the flag in fstab, check for the
    stable_inodes flag using tunefs -l
Cherry-Picked-From: c2f37683bc
Merged-In: Id7f906564457c240ddf6677dd536698881385385
Change-Id: Id7f906564457c240ddf6677dd536698881385385
This commit is contained in:
Paul Crowley 2020-05-20 16:36:15 -07:00
parent 8de46ae39d
commit e96d6a9067
1 changed files with 2 additions and 1 deletions
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3
fs_mgr/fs_mgr.cpp
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@ -454,7 +454,8 @@ static void tune_encrypt(const std::string& blk_device, const FstabEntry& entry,
<< entry.encryption_options;
return;
}
if ((options.flags & FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64) != 0) {
if ((options.flags &
(FSCRYPT_POLICY_FLAG_IV_INO_LBLK_64 | FSCRYPT_POLICY_FLAG_IV_INO_LBLK_32)) != 0) {
// We can only use this policy on ext4 if the "stable_inodes" feature
// is set on the filesystem, otherwise shrinking will break encrypted files.
if ((sb->s_feature_compat & cpu_to_le32(EXT4_FEATURE_COMPAT_STABLE_INODES)) == 0) {