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authorTejun Heo <tj@kernel.org>2014-03-07 10:19:57 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-03-23 21:38:16 -0700
commit9dfce5a3e2f985cca75c05dd714958b9d0ad8ab1 (patch)
treefe4057fa9870fc22d9469a71f843fc982bece090 /fs/select.c
parentf5befc2c193dbe92826a382e16cb50e8640a4f62 (diff)
firewire: don't use PREPARE_DELAYED_WORK
commit 70044d71d31d6973665ced5be04ef39ac1c09a48 upstream. PREPARE_[DELAYED_]WORK() are being phased out. They have few users and a nasty surprise in terms of reentrancy guarantee as workqueue considers work items to be different if they don't have the same work function. firewire core-device and sbp2 have been been multiplexing work items with multiple work functions. Introduce fw_device_workfn() and sbp2_lu_workfn() which invoke fw_device->workfn and sbp2_logical_unit->workfn respectively and always use the two functions as the work functions and update the users to set the ->workfn fields instead of overriding work functions using PREPARE_DELAYED_WORK(). This fixes a variety of possible regressions since a2c1c57be8d9 "workqueue: consider work function when searching for busy work items" due to which fw_workqueue lost its required non-reentrancy property. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Cc: linux1394-devel@lists.sourceforge.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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