From: Josef Bacik <josef@redhat.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: Josef Bacik <josef@redhat.com>,
linux-btrfs@vger.kernel.org, mzerqung@0pointer.de
Subject: Re: [PATCH] Btrfs: add a disk info ioctl to get the disks attached to a filesystem
Date: Tue, 28 Sep 2010 20:08:10 -0400 [thread overview]
Message-ID: <20100929000809.GC32420@dhcp231-156.rdu.redhat.com> (raw)
In-Reply-To: <20100928232513.GA20629@infradead.org>
On Tue, Sep 28, 2010 at 07:25:13PM -0400, Christoph Hellwig wrote:
> On Tue, Sep 28, 2010 at 04:53:16PM -0400, Josef Bacik wrote:
> > This was a request from the systemd guys. They need a quick and easy way to get
> > all devices attached to a Btrfs filesystem in order to check if any of the disks
> > are SSD for...something, I didn't ask :). I've tested this with the
> > btrfs-progs patch that accompanies this patch. Thanks,
>
> So please tell the "systemd guys" to explain what the fuck they're doing
> to linux-fsdevel and fiend a proper interface. Chance is they will fuck
> up as much as just about ever other lowlevel userspace tool are very
> high.
>
Lennart? :). And Christoph, what would be a good interface? LVM has a slaves/
subdir in sysfs which symlinks to all of their dev's, would you rather I
resurrect the sysfs stuff for Btrfs and do a similar thing? I'm open to
suggestions, I just took the quick and painless way out. Thanks,
Josef
next prev parent reply other threads:[~2010-09-29 0:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-28 20:53 [PATCH] Btrfs: add a disk info ioctl to get the disks attached to a filesystem Josef Bacik
2010-09-28 22:28 ` Goffredo Baroncelli
2010-09-29 0:24 ` Josef Bacik
2010-09-28 23:25 ` Christoph Hellwig
2010-09-29 0:08 ` Josef Bacik [this message]
2010-09-29 0:19 ` Lennart Poettering
2010-09-29 7:25 ` Ric Wheeler
2010-09-29 8:04 ` Kay Sievers
2010-09-29 23:43 ` Christoph Hellwig
2010-09-30 0:32 ` Josef Bacik
2010-09-30 7:43 ` Kay Sievers
2010-09-30 12:38 ` Josef Bacik
2010-09-30 13:47 ` Andi Kleen
2010-09-30 19:48 ` Josef Bacik
2010-09-30 19:59 ` Kay Sievers
2010-09-30 20:37 ` Lennart Poettering
2010-09-29 11:59 ` Lennart Poettering
2010-09-29 12:08 ` Ric Wheeler
2010-09-29 12:19 ` Kay Sievers
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