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The idea is that we usually use snapshot to backup/restore our data, and the
common way can be a cron script which makes lots of snapshots, so we can end
up with spending some time to find the latest snapshot to restore.
This adds a feature for 'btrfs subvolume list' to let it list snapshots by their
_created_ generation.
What we need to do is just to list them in descending order and get the latest
snapshot. What's more, we can find the oldest snapshot as well by listing
snapshots in ascending order.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
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Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Arne Jansen <sensille@gmx.net>
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Andrei Popa reported that there were two typos of default as dafault,
this patch fixes those two typos up.
Signed-off-by: Chris Samuel <chris@csamuel.org>
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* mkfs.c (parse_size): ./mkfs.btrfs -A '' would read and possibly
write the byte before beginning of strdup'd heap buffer. All other
size-accepting options were similarly affected.
Reviewed-by: Josef Bacik <josef@redhat.com>
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* restore.c (main): Ensure strncpy-copied dir_name is NUL-terminated.
* btrfsctl.c (main): Likewise, for a command-line argument.
* utils.c (multiple functions): Likewise.
* btrfs-list.c (add_root): Likewise.
* btrfslabel.c (change_label_unmounted): Likewise.
* cmds-device.c (cmd_add_dev, cmd_rm_dev, cmd_scan_dev): Likewise.
* cmds-filesystem.c (cmd_resize): Likewise.
* cmds-subvolume.c (cmd_subvol_create, cmd_subvol_delete, cmd_snapshot):
Likewise.
Reviewed-by: Josef Bacik <josef@redhat.com>
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Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The new infrastructure offloads checking number of arguments passed to a
command to individual command handlers. Fix them up accordingly.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Separate every command group into its own file (cmds_<group>.c) and
rearrange includes. Remove btrfs_cmds.c.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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