block: interface update for ioc/icq creation functions

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Make the following interface updates to prepare for future ioc related
changes.

* create_io_context() returning ioc only works for %current because it
  doesn't increment ref on the ioc.  Drop @task parameter from it and
  always assume %current.

* Make create_io_context_slowpath() return 0 or -errno and rename it
  to create_task_io_context().

* Make ioc_create_icq() take @ioc as parameter instead of assuming
  that of %current.  The caller, get_request(), is updated to create
  ioc explicitly and then pass it into ioc_create_icq().

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

...

This commit is contained in:

Tejun Heo 2012-03-05 13:15:24 -08:00 • committed by Jens Axboe

parent b679281a64

commit 24acfc34fb

3 changed files with 26 additions and 28 deletions

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8

block/blk-core.c

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22

block/blk-ioc.c

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24

block/blk.h

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