From: David Sterba <dsterba@suse.cz>
To: Miao Xie <miaox@cn.fujitsu.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 4/9] Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root
Date: Sat, 22 Feb 2014 01:23:37 +0100 [thread overview]
Message-ID: <20140222002337.GO16073@twin.jikos.cz> (raw)
In-Reply-To: <1392890939-19044-4-git-send-email-miaox@cn.fujitsu.com>
On Thu, Feb 20, 2014 at 06:08:54PM +0800, Miao Xie wrote:
> @@ -1352,13 +1347,15 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
> root->root_key.objectid = BTRFS_TREE_LOG_OBJECTID;
> root->root_key.type = BTRFS_ROOT_ITEM_KEY;
> root->root_key.offset = BTRFS_TREE_LOG_OBJECTID;
> +
> /*
> + * DON'T set REF_COWS for log trees
> + *
> * log trees do not get reference counted because they go away
> * before a real commit is actually done. They do store pointers
> * to file data extents, and those reference counts still get
> * updated (along with back refs to the log tree).
> */
> - root->ref_cows = 0;
This looks like a bugfix hidden in a cleanup patch. If it is standalone
and not related to changes in this patchset, it makes sense to send it
separately (and possibly CC stable).
Thanks.
next prev parent reply other threads:[~2014-02-22 0:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-20 10:08 [PATCH 1/9] Btrfs: use ACCESS_ONCE to prevent the optimize accesses to ->last_trans_log_full_commit Miao Xie
2014-02-20 10:08 ` [PATCH 2/9] Btrfs: fix the skipped transaction commit during the file sync Miao Xie
2014-02-20 10:08 ` [PATCH 3/9] Btrfs: don't start the log transaction if the log tree init fails Miao Xie
2014-02-20 10:08 ` [PATCH 4/9] Btrfs: use bitfield instead of integer data type for the some variants in btrfs_root Miao Xie
2014-02-22 0:23 ` David Sterba [this message]
2014-02-26 9:10 ` Miao Xie
2014-02-27 17:02 ` David Sterba
2014-03-07 23:54 ` Josef Bacik
2014-03-08 0:00 ` Josef Bacik
2014-03-10 1:16 ` Miao Xie
2014-02-20 10:08 ` [PATCH 5/9] Btrfs: remove unnecessary memory barrier in btrfs_sync_log() Miao Xie
2014-02-20 10:08 ` [PATCH 6/9] Btrfs: use signed integer instead of unsigned long integer for log transid Miao Xie
2014-02-20 10:08 ` [PATCH 7/9] Btrfs: stop joining the log transaction if sync log fails Miao Xie
2014-02-22 0:27 ` David Sterba
2014-02-26 8:51 ` Miao Xie
2014-02-20 10:08 ` [PATCH 8/9] Btrfs: fix skipped error handle when log sync failed Miao Xie
2014-02-20 10:08 ` [PATCH 9/9] Btrfs: just wait or commit our own log sub-transaction Miao Xie
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