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Message-ID: <20100524113815.GX3991@agk-dp.fab.redhat.com> Date: Mon, 24 May 2010 12:38:16 +0100 From: Alasdair G Kergon <agk@...hat.com> To: Will Drewry <wad@...omium.org>, dm-devel@...hat.com, linux-kernel@...r.kernel.org, snitzer@...hat.com Subject: Re: [dm-devel] [PATCH v3 3/3] dm: lookup devices by path with name_to_dev_t On Wed, May 19, 2010 at 01:38:24PM -0500, Will Drewry wrote: > Replace major:minor parsing with name_to_dev_t. This > maintains the current functionality (as the code was the same), > but adds support for the hexadecimal dev as well as device lookup > before the root filesystem is available. The latter is the motivation > for this change. > > It still falls back to lookup_bdev() for cases where the inode > on disk provides more information than the name (and the path exceeds > the length handled by name_to_dev_t). I'll apply this, but anyone debugging problems in future should note the functional change here: the standard in-kernel device names will now take precedence over the inodes in /dev if the two don't match and this might confuse people. As it's technically an interface change, I'll bump the version number so userspace can detect this if it ever needs to. Alasdair -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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