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Date: Tue, 7 Dec 2021 14:34:07 -0500 From: "Theodore Y. Ts'o" <tytso@....edu> To: Roman Anufriev <dotdot@...dex-team.ru> Cc: linux-ext4@...r.kernel.org, jack@...e.cz, wshilong@....com, dmtrmonakhov@...dex-team.ru Subject: Re: [PATCH] ext4: compare inode's i_projid with EXT4_DEF_PROJID rather than check EXT4_INODE_PROJINHERIT flag On Tue, Dec 07, 2021 at 05:05:19PM +0300, Roman Anufriev wrote: > > Commit 7ddf79a10395 ("ext4: only set project inherit bit for directory") > > removes EXT4_INODE_PROJINHERIT flag from regular files. This makes > > ext4_statfs() output incorrect (function does not apply quota limits > > on used/available space, etc) when called on dentry of regular file > > with project quota enabled. Under what circumstance is userspace trying to call statfs on a file descriptor? Removing the test for EXT4_INODE_PROJINHERIT will cause incorrect/misleading results being returned in the case where we have a directory where a directory hierarchy is using project id's, but which is *not* using PROJINHERIT. - Ted
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