Re: [PATCH] block: kmemleak: Track the page allocations for struct request

From: Jens Axboe
Date: Mon Sep 14 2015 - 13:22:11 EST


On 09/14/2015 11:16 AM, Catalin Marinas wrote:
The pages allocated for struct request contain pointers to other slab
allocations (via ops->init_request). Since kmemleak does not track/scan
page allocations, the slab objects will be reported as leaks (false
positives). This patch adds kmemleak callbacks to allow tracking of such
pages.

Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Reported-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Tested-by: Bart Van Assche<bart.vanassche@xxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
---

Jens,

I just realised that no-one has picked this patch up for -rc1. It was
discussed here previously:

http://lkml.kernel.org/r/20150803104309.GB4033@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Since it touches the block layer, are you fine with merging it?

Yeah looks simple enough for me, not sure why it got missed. I'll add it for 4.4-rc1, thanks.

--
Jens Axboe

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