Re: [v6 2/4] ext4: adds project ID support
From: Theodore Ts'o <hidden>
Date: 2014-11-11 04:26:06
Also in:
linux-api, linux-fsdevel
Possibly related (same subject, not in this thread)
- 2014-11-11 · Re: [v6 2/4] ext4: adds project ID support · Jan Kara <jack@suse.cz>
- 2014-11-10 · Re: [v6 2/4] ext4: adds project ID support · Andreas Dilger <hidden>
- 2014-11-08 · [v6 2/4] ext4: adds project ID support · Li Xi <hidden>
On Sun, Nov 09, 2014 at 01:43:37AM +0800, Li Xi wrote:
This patch adds a new internal field of ext4 inode to save project identifier. Also a new flag EXT4_INODE_PROJINHERIT is added for inheriting project ID from parent directory.
What would be the downside of simply always inhereiting the project ID from the parent directory? I see that if the flag is not set, the project id will be 0 instead. I'm not sure when that would actually be desirable. To the extent that the project ID is designed to implement a quota over a directory extent, the fact that the owner can clear the EXT4_PROJINHERET_FL and then arrange to have the quota charged to project 0 seems to me to be a bug, not a feature. Can you explain what your intended use case for this flag might be? Thanks, - Ted