Re: [PATCH] Btrfs: fix allocation size calculations in alloc_btrfs_bio

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On Thu, Feb 19, 2015 at 08:59:30PM -0500, Chris Mason wrote:
> Since commit 8e5cfb55d3f (Btrfs: Make raid_map array be inlined in
> btrfs_bio structure), the raid map array is allocated along with the
> btrfs bio in alloc_btrfs_bio.  The calculation used to decide how much
> we need to allocate was using the wrong parameter passed into the
> allocation function.
> 
> The passed in real_stripes will be zero if a target replace operation
> is not currently running.  We want to use total_stripes instead.
> 
> Signed-off-by: Chris Mason <clm@xxxxxx>
> Reported-by: Dave Sterba <dsterba@xxxxxxx>

Tested-by: David Sterba <dsterba@xxxxxxx>

Current master + this patch with full slub_debug is now ok with
btrfs/023.
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