From: Goffredo Baroncelli <kreijack@inwind.it>
To: Duncan <1i5t5.duncan@cox.net>, linux-btrfs@vger.kernel.org
Subject: Re: [PATCH V2][BTRFS-PROGS] Don't use LVM snapshot device
Date: Fri, 05 Dec 2014 19:39:17 +0100 [thread overview]
Message-ID: <5481FBD5.9040004@inwind.it> (raw)
In-Reply-To: <pan$67e00$edffae8a$cb013d3$4a1bb73d@cox.net>
On 12/05/2014 08:26 AM, Duncan wrote:
> Goffredo Baroncelli posted on Thu, 04 Dec 2014 19:39:37 +0100 as
> excerpted:
>
>> To check if a device is a LVM snapshot, it is checked the 'udev'
>> device property 'DM_UDEV_LOW_PRIORITY_FLAG' . If it is set to 1,
>> the device has to be skipped.
>>
>> As consequence, btrfs now depends also by the libudev.
>
> Not being a coder I gotta ask...
>
> How does this patch deal with mdev (busybox) or static dev instead of
> udev? Does it gracefully degrade to legacy LVM-agnostic behavior?
My patch no; of course we can put some #ifdef to make it an option.
[dropped the part related to systemd ....]
--
gpg @keyserver.linux.it: Goffredo Baroncelli <kreijackATinwind.it>
Key fingerprint BBF5 1610 0B64 DAC6 5F7D 17B2 0EDA 9B37 8B82 E0B5
next prev parent reply other threads:[~2014-12-05 18:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-04 18:39 [PATCH V2][BTRFS-PROGS] Don't use LVM snapshot device Goffredo Baroncelli
2014-12-04 18:39 ` [PATCH 1/5] Avoid to consider lvm snapshots when scanning devices Goffredo Baroncelli
2014-12-08 2:02 ` Qu Wenruo
2014-12-08 14:58 ` Goffredo Baroncelli
2014-12-09 0:32 ` Qu Wenruo
2014-12-09 10:27 ` David Sterba
2014-12-09 18:19 ` Goffredo Baroncelli
2014-12-04 18:39 ` [PATCH 2/5] 'btrfs device scan' skips lvm snapshots Goffredo Baroncelli
2014-12-04 18:39 ` [PATCH 3/5] Update 'btrfs device scan' man page Goffredo Baroncelli
2014-12-04 18:39 ` [PATCH 4/5] Add reference to BTRFS_SKIP_LVM_SNAPSHOT environment variable Goffredo Baroncelli
2014-12-04 18:39 ` [PATCH 5/5] Abort in case of device uuid conflict Goffredo Baroncelli
2014-12-05 7:26 ` [PATCH V2][BTRFS-PROGS] Don't use LVM snapshot device Duncan
2014-12-05 18:39 ` Goffredo Baroncelli [this message]
2014-12-08 15:30 ` Phillip Susi
2014-12-08 17:36 ` Goffredo Baroncelli
2014-12-08 18:17 ` Phillip Susi
2014-12-08 19:22 ` Robert White
2014-12-10 7:52 ` Anand Jain
2014-12-10 18:40 ` Goffredo Baroncelli
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