Re: [PATCH 00/26] Btrfs: Add device replace code

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On 11/06/2012 19:17, Bart Noordervliet wrote:
Great new feature Stefan, thanks a lot! Going to give it a spin right
away. While compiling I got this (probably superfluous) error that you
might want to prevent:

fs/btrfs/dev-replace.c: In function ‘btrfs_dev_replace_start’:
fs/btrfs/dev-replace.c:344:5: warning: ‘ret’ may be used uninitialized
in this function [-Wmaybe-uninitialized]

Regards,

Bart


Yes, this happens on 32 bit builds, not on 64 bit builds. If you look at the source code, the compiler is obviously wrong (or I am blind).

        ret = btrfs_dev_replace_find_srcdev(root, args->start.srcdevid,
                                            args->start.srcdev_name,
                                            &src_device);
        mutex_unlock(&fs_info->volume_mutex);
        if (ret) {  <-- this is line 344

But thanks for the feedback anyway!
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