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qed: Fix corner case for chain in-between pages
authorTomer Tayar <Tomer.Tayar@qlogic.com>
Mon, 7 Dec 2015 11:25:56 +0000 (06:25 -0500)
committerDavid S. Miller <davem@davemloft.net>
Mon, 7 Dec 2015 19:14:03 +0000 (14:14 -0500)
commit4639d60d2bfb7f5007b5d93788fd93c19b63f000
tree700ce3b8225ff3fb235750875b8739956814a1c7tree | snapshot
parent4675390a9e7183bf45590e84a183e22e32c485a7commit | diff
qed: Fix corner case for chain in-between pages

The amount of chain next pointer elements between the producer
and the consumer indices depends on which pages they currently
point to. The current calculation is based only on their difference,
and it can lead to a number of free elements which is higher by 1
than the actual value.

Signed-off-by: Tomer Tayar <Tomer.Tayar@qlogic.com>
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/qed/qed_chain.h diff | blob | history
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