drbd: bm_page_async_io: properly initialize page->private

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If bm_page_async_io is advised to use a new page for I/O
(BM_AIO_COPY_PAGES is set), it will get it from a mempool.
Once the mempool has to dip into its reserves the page is
not reinitialized, i.e. page->private contains garbage, which
will lead to various problems once the I/O completes (dereferences
of NULL pointers, the submitting thread getting stuck in D-state,
 ...).

Signed-off-by: Arne Redlich <arne.redlich@googlemail.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

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Lars Ellenberg 2012-05-07 13:04:03 +02:00 • committed by Philipp Reisner

parent a220d29180

commit f66ee69746

1 changed files with 1 additions and 1 deletions

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drivers/block/drbd/drbd_bitmap.c

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