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From: Tahsin Erdogan <tahsin@google.com>
Date: Thu, 15 Jun 2017 11:25:02 -0700
Message-ID: <CAAeU0aMLrfhnhqzD9PH2UjHSrc64AC_85rAEz626jcuFjLXY2g@mail.gmail.com>
Subject: Re: [PATCH 23/28] mbcache: make mbcache more generic
To: Jan Kara <jack@suse.cz>
Cc: Jan Kara <jack@suse.com>, "Theodore Ts'o" <tytso@mit.edu>,
        Andreas Dilger <adilger.kernel@dilger.ca>,
        Dave Kleikamp <shaggy@kernel.org>,
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On Thu, Jun 15, 2017 at 12:41 AM, Jan Kara <jack@suse.cz> wrote:
> Can you explain a bit more what do you mean by "make it more generic" as it
> seems you just rename a couple of things here...

The change is really just that, having names that are more generic
which do not limit use cases to block sharing. In a subsequent patch
in the series ("[PATCH v4 27/28] ext4: xattr inode deduplication"), we
start using the mbcache code to share xattr inodes. With that patch,
old mb_cache_entry.e_block field could be holding either a block
number or an inode number, so I renamed things to make them more
generic.