linux-ext4 - [PATCH 0/12 v4] Moving i_dquot out of struct inode

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Message-Id: <1415099993-18034-1-git-send-email-jack@suse.cz>
Date:	Tue,  4 Nov 2014 12:19:41 +0100
From:	Jan Kara <jack@...e.cz>
To:	linux-fsdevel@...r.kernel.org
Cc:	linux-ext4@...r.kernel.org, Dave Chinner <david@...morbit.com>,
	xfs@....sgi.com, cluster-devel@...hat.com,
	Steven Whitehouse <swhiteho@...hat.com>,
	Mark Fasheh <mfasheh@...e.com>,
	Joel Becker <jlbec@...lplan.org>, ocfs2-devel@....oracle.com,
	reiserfs-devel@...r.kernel.org, Jeff Mahoney <jeffm@...e.de>,
	Dave Kleikamp <shaggy@...nel.org>,
	jfs-discussion@...ts.sourceforge.net, tytso@....edu,
	viro@...iv.linux.org.uk, hch@....de, Jan Kara <jack@...e.cz>
Subject: [PATCH 0/12 v4] Moving i_dquot out of struct inode

  Hello,

  here is a new version of my patch series which moves i_dquot array from
struct inode into filesystem private part of the inode. Thus filesystems which
don't need it save 2 pointers in their inodes (would be 3 after we add project
quota support into generic quota).

The patch series also contains a change to quotactl so that each filesystem
can set quota types it supports. This is in the end unrelated change
(originally it was necessary for i_dquot moving but in the end I changed
things so that it's not anymore). I can move that into a separate series
but I was somewhat reluctant to do that since that would mean another 6
one-line patches to the same files we are changing here...

If people like the patches, I will queue this series into my tree for
the next merge window. For that I'd prefer to get acks from affected fs
maintainers (the changes are pretty trivial and I don't feel it's a must but
still I'd prefer fs maintainers to ack they are aware of the changes).

								Honza

Changes since v1:
* Inode field names are now named enum
* Quota type masks now have names like QTYPE_MASK_{USR|GRP|PRJ} instead of
  opencoding shifts.

Changes since v2:
* Use ->get_dquots callback instead of inode fields framework
* rebased on Linus' tree as of 3.18-rc1 + something.

Changes since v3:
* Moved bitmask of allowed quota types out of s_dquot into sb itself
* Removed pointless #ifdef CONFIG_QUOTA from OCFS2
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