linux-kernel - Kernel module and 2 programs for AIO cancellation testing

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Date:	Fri, 28 May 2010 02:35:44 +0400
From:	Sergey Temerkhanov <temerkhanov@...dex.ru>
To:	"linux-aio" <linux-aio@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Kernel module and 2 programs for AIO cancellation testing

The attached files are respectively:
  - a kernel module which implements 4 pseudo-devices with different
    aio_read/aio_write methods:
	- aiotest0 simply returns -EIOCBQUEUED;
   	- aiotest1 sets ki_cancel method and returns -EIOCBQUEUED;
	- aiotest2 sets KIF_CANCELLED flag and returns -EINTR;
	- aiotest3 sets ki_cancel method and returns -EIOCBQUEUED after 1 second;

  - a program test_aio.c which submits 1 AIO request and calls
    io_destroy() after 1 second timeout
  - a program test_aio.c which submits 1 AIO request and calls
    io_cancel() on that request immediately.

-- 
Regards, Sergey Temerkhanov,
Cifronic ZAO

View attachment "aio_tester.c" of type "text/x-csrc" (5406 bytes)

View attachment "test_aio.c" of type "text/x-csrc" (1244 bytes)

View attachment "test_aio_cancel.c" of type "text/x-csrc" (1435 bytes)