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Subject[PATCH 1/2] block: Fix io_context leak after clone with CLONE_IO
Date
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>
---
block/blk-ioc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index d4ed600..dcd0412 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -80,8 +80,8 @@ void exit_io_context(void)
ioc->aic->exit(ioc->aic);
cfq_exit(ioc);

- put_io_context(ioc);
}
+ put_io_context(ioc);
}

struct io_context *alloc_io_context(gfp_t gfp_flags, int node)
--
1.5.6.5


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