From: Li Zefan <lizf@cn.fujitsu.com>
To: "linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: [PATCH v2 0/5] Btrfs: Readonly snapshots
Date: Thu, 09 Dec 2010 17:09:38 +0800 [thread overview]
Message-ID: <4D009CD2.3060805@cn.fujitsu.com> (raw)
This patchset adds readonly-snapshots support. You can create a
readonly snapshot, and you can also set a snapshot (subvolume also)
readonly/writable on the fly.
A few readonly checks are added in setattr, permission, remove_xattr
and set_xattr callbacks, as well as in some ioctls.
The patchset is also available in:
git://repo.or.cz/linux-btrfs-devel.git readonly-snapshots
Note: I've changed the async snapshot ABI. So if the patchset is acceptable,
the first patch has to be merged into .37 to avoid ABI breakage.
---
fs/btrfs/ctree.h | 3 +
fs/btrfs/disk-io.c | 36 +++++----
fs/btrfs/inode.c | 8 ++
fs/btrfs/ioctl.c | 193 +++++++++++++++++++++++++++++++++++++++---------
fs/btrfs/ioctl.h | 19 ++++-
fs/btrfs/transaction.c | 8 ++
fs/btrfs/transaction.h | 1 +
fs/btrfs/xattr.c | 18 +++++
8 files changed, 230 insertions(+), 56 deletions(-)
next reply other threads:[~2010-12-09 9:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 9:09 Li Zefan [this message]
2010-12-09 9:10 ` [PATCH v2 1/5] Btrfs: Make async snapshot ioctl more generic Li Zefan
2010-12-09 9:10 ` [PATCH v2 2/5] Btrfs: Refactor btrfs_ioctl_snap_create() Li Zefan
2010-12-09 9:10 ` [PATCH v2 3/5] Btrfs: Add helper __setup_root_post() Li Zefan
2010-12-09 9:11 ` [PATCH v2 4/5] Btrfs: Add readonly snapshots support Li Zefan
2010-12-09 19:34 ` Goffredo Baroncelli
2010-12-10 6:43 ` Li Zefan
2010-12-09 9:11 ` [PATCH v2 5/5] Btrfs: Add BTRFS_IOC_SUBVOL_GETFLAGS/SETFLAGS ioctl Li Zefan
2010-12-09 20:09 ` Goffredo Baroncelli
2010-12-10 7:12 ` Li Zefan
2010-12-10 7:49 ` Ian! D. Allen
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