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Shutdown code reaping loop takes care of emptying the CQ's before they being destroyed. And once tasklets are killed, the hanlders are not expected to run. But because of core tasklet code issues, tasklet handler could still run even after tasklet_kill, RDS IB shutdown code already reaps the CQs before freeing cq/qp resources so as such the handlers have nothing left to do post shutdown. On other hand any handler running after teardown and trying to access already freed qp/cq resources causes issues Patch fixes this race by makes sure that handlers returns without any action post teardown. Reviewed-by: Wengang <wen.gang.wang@oracle.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.