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014fa88191
commit 34ec43661f upstream.
Ignore client writing state during cb completion to fix a memory
leak.
When moving cbs to the completion list we should not look at
writing_state as this state can be already overwritten by next
write, the fact that a cb is on the write waiting list means
that it was already written to the HW and we can safely complete it.
Same pays for wait in poll handler, we do not have to check the state
wake is done after completion list processing.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ kamal: backport to 3.8: context ]
Signed-off-by: Kamal Mostafa <kamal@canonical.com>