Re: linux-next: build warninga in Linus' tree
From: Mitch Harder
Date: Wed Jun 01 2011 - 11:16:59 EST
On Tue, May 31, 2011 at 12:57 PM, David Sterba <dave@xxxxxxxx> wrote:
> On Mon, May 30, 2011 at 11:36:53AM +1000, Stephen Rothwell wrote:
>> After merging the Linus' tree, today's linux-next build (powerpc
>> ppc64_defconfig) produced these warnings:
>> fs/btrfs/sysfs.c:76:26: warning: 'btrfs_root_attrs' defined but not used
>> fs/btrfs/sysfs.c:97:26: warning: 'btrfs_super_attrs' defined but not used
>> fs/btrfs/sysfs.c:153:13: warning: 'btrfs_super_release' defined but not used
>> fs/btrfs/sysfs.c:160:13: warning: 'btrfs_root_release' defined but not used
>> I have started using gcc v4.5.2 (instead of v4.4.4) if that makes a
> the warning probably started to show up after one of my cleanup patches,
> removing unused functions (f2a97a9dbd86eb1ef956bdf20e05c507b32beb96).
> The sysfs interface is not being used right now, but there's a unmerged
> patchset which adds the interesting bits like info about available btrfs
> filesystems and devices. I don't know what are the intentions regarding
I've been playing around with resurrecting the basic sysfs
capabilities that had been previously incorporated into btrfs.
As it stands right now, it was relatively easy to re-implement sysfs
as it was originally. However, that implementation of sysfs wasn't
populated with much information (only total_blocks, blocks_used, and
I also had to reverse a small portion of code that was in the last clean-up.
If a CONFIG_BTRFS_DEBUG type configuration flag is ever introduced, it
would be interesting to resurrect btrfs' sysfs capabilities.
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