cfq-iosched: add hlist for browsing parallel to the radix tree

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It's cumbersome to browse a radix tree from start to finish, especially
since we modify keys when a process exits. So add a hlist for the single
purpose of browsing over all known cfq_io_contexts, used for exit,
io prio change, etc.

This fixes http://bugzilla.kernel.org/show_bug.cgi?id=9948

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

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Jens Axboe 2008-02-19 10:02:29 +01:00

parent 84e9e03c55

commit ffc4e75957

3 changed files with 29 additions and 46 deletions

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include/linux/iocontext.h

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