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block: Fix io_context leak after clone with CLONE_IO

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With CLONE_IO, copy_io() increments both ioc->refcount and ioc->nr_tasks.
However exit_io_context() only decrements ioc->refcount if ioc->nr_tasks
reaches 0.

Always call put_io_context() in exit_io_context().

Signed-off-by: Louis Rilling <louis.rilling@kerlabs.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Louis Rilling 2009-12-04 14:52:41 +01:00 • committed by Jens Axboe
parent 3c764b7a65
commit 61cc74fbb8
1 changed files with 1 additions and 1 deletions
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2
block/blk-ioc.c
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@ -80,8 +80,8 @@ void exit_io_context(void)
ioc->aic->exit(ioc->aic); ioc->aic->exit(ioc->aic);
cfq_exit(ioc); cfq_exit(ioc);
put_io_context(ioc);
} }
put_io_context(ioc);
} }
struct io_context *alloc_io_context(gfp_t gfp_flags, int node) struct io_context *alloc_io_context(gfp_t gfp_flags, int node)