From: Jeff Mahoney <jeffm@suse.com>
Date: Fri, 1 Nov 2013 17:07:00 +0000 (-0400)
Subject: btrfs: publish unknown feature bits in sysfs
X-Git-Tag: v3.14-rc1~29^2~139
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=79da4fa4d9dcf8c948ef8b5848f747ef08f6e732;p=pandora-kernel.git

btrfs: publish unknown feature bits in sysfs

With the compat and compat-ro bits, it's possible for file systems to
exist that have features that aren't supported by the kernel's file system
implementation yet still be mountable.

This patch publishes read-only info on those features using a prefix:number
format, where the number is the bit number rather than the shifted value.
e.g. "compat:12"

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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