On Wed, Jul 16, 2014 at 12:07:10PM +0800, Qu Wenruo wrote:
btrfs uses differnet routine to handle 'subvolid=' and 'subvol=' mount
option.
Given 'subvol=' mount option, btrfs will mount btrfs first and then call
mount_subtree() to mount a subtree of btrfs, making vfs handle the path
searching.
of patch name, I didn't add the v2
tag.
Thanks,
Qu
Original Message
Subject: Re: [PATCH 1/2] btrfs: Call mount_subtree() even 'subvolid='
mount option is given.
From: David Sterba dste...@suse.cz
To: Qu Wenruo quwen...@cn.fujitsu.com
Date: 2014年07月24日 20:48
On Wed, Jul 16, 2014
On Wednesday 16 Jul 2014 12:07:10 Qu Wenruo wrote:
+/* Find the path for given subvol_objectid.
+ * Caller needs to readlock the root tree and kzalloc PATH_MAX for
+ * subvol_name and namebuf */
+static char *find_subvol_by_id(struct btrfs_root *root, u64 subvol_objectid)
+{
+ struct
Original Message
Subject: Re: [PATCH 1/2] btrfs: Call mount_subtree() even 'subvolid='
mount option is given.
From: Chandan Rajendra chan...@linux.vnet.ibm.com
To: Qu Wenruo quwen...@cn.fujitsu.com
Date: 2014年07月18日 14:25
On Wednesday 16 Jul 2014 12:07:10 Qu Wenruo wrote
btrfs uses differnet routine to handle 'subvolid=' and 'subvol=' mount
option.
Given 'subvol=' mount option, btrfs will mount btrfs first and then call
mount_subtree() to mount a subtree of btrfs, making vfs handle the path
searching.
This is good since vfs layer know extactly that a subtree mount
