linux-kernel - Re: [PATCH] storvsc: fix memory leak on ring buffer busy

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Date:   Tue, 29 Aug 2017 21:31:11 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Long Li <longli@...hange.microsoft.com>
Cc:     "K . Y . Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        "James E . J . Bottomley" <JBottomley@...n.com>,
        devel@...uxdriverproject.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, Long Li <longli@...rosoft.com>
Subject: Re: [PATCH] storvsc: fix memory leak on ring buffer busy


Long,

> When storvsc is sending I/O to Hyper-v, it may allocate a bigger
> buffer descriptor for large data payload that can't fit into a
> pre-allocated buffer descriptor. This bigger buffer is freed on return
> path.
>
> If I/O request to Hyper-v fails due to ring buffer busy, the storvsc
> allocated buffer descriptor should also be freed.

Which kernel version is this patch aimed at?

-- 
Martin K. Petersen	Oracle Linux Engineering