tree d6ca130f4089ec58096d5163d62001b305fa86a6
parent 9c45101e88b2bf2ce36b8833fcfa784a9149aa74
author Jan Kara <jack@suse.cz> 1416385959 +0100
committer Jan Kara <jack@suse.cz> 1421864491 +0100

quota: Verify flags passed to Q_SETINFO

Currently flags passed via Q_SETINFO were just stored. This makes it
hard to add new flags since in theory userspace could be just setting /
clearing random flags. Since currently there is only one userspace
settable flag and that is somewhat obscure flags only for ancient v1
quota format, I'm reasonably sure noone operates these flags and
hopefully we are fine just adding the check that passed flags are sane.
If we indeed find some userspace program that gets broken by the strict
check, we can always remove it again.

Signed-off-by: Jan Kara <jack@suse.cz>