btrfs: ensure we don't overrun devices_info[] in __btrfs_alloc_chunk

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WARN_ON isn't enough, we need to stop the loop if for any reason
we would overrun the devices_info array.

I tried to track down the connection between the length of
the alloc_devices list and the rw_devices counter but
it wasn't immediately obvious, so be defensive about it.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

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Eric Sandeen 2013-01-31 00:55:01 +00:00 • committed by Josef Bacik

parent 1971e917c8

commit 063d006fa0

1 changed files with 5 additions and 1 deletions

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fs/btrfs/volumes.c

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