linux-ext4 - Re: [PATCH v7 05/13] fat: make fat_update

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Message-ID: <87a5v06kij.fsf@mail.parknet.co.jp>
Date:   Thu, 10 Aug 2023 05:14:28 +0900
From:   OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:     Jeff Layton <jlayton@...nel.org>
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Subject: Re: [PATCH v7 05/13] fat: make fat_update_time get its own timestamp

Jeff Layton <jlayton@...nel.org> writes:

> When you say it "doesn't work the same", what do you mean, specifically?
> I had to make some allowances for the fact that FAT is substantially
> different in its timestamp handling, and I tried to preserve existing
> behavior as best I could.

Ah, ok. I was misreading some.

inode_update_timestamps() checks IS_I_VERSION() now, not S_VERSION.  So,
if adding the check of IS_I_VERSION() and (S_MTIME|S_CTIME|S_VERSION) to
FAT?

With it, IS_I_VERSION() would be false on FAT, and I'm fine.

I.e. something like

	if ((flags & (S_VERSION|S_CTIME|S_MTIME)) && IS_I_VERSION(inode)
	    && inode_maybe_inc_iversion(inode, false))
  		dirty_flags |= I_DIRTY_SYNC;

Thanks.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>