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Message-Id: <20121001225159.394708465@1wt.eu> Date: Tue, 02 Oct 2012 00:52:39 +0200 From: Willy Tarreau <w@....eu> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Louis Rilling <louis.rilling@...labs.com>, Jens Axboe <jens.axboe@...cle.com>, Willy Tarreau <w@....eu> Subject: [ 042/180] block: Fix io_context leak after clone with CLONE_IO 2.6.32-longterm review patch. If anyone has any objections, please let me know. ------------------ From: Louis Rilling <louis.rilling@...labs.com> commit 61cc74fbb87af6aa551a06a370590c9bc07e29d9 upstream 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@...labs.com> Signed-off-by: Jens Axboe <jens.axboe@...cle.com> Signed-off-by: Willy Tarreau <w@....eu> --- 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) -- 1.7.2.1.45.g54fbc -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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