> -----Original Message----- > From: Martin K. Petersen [mailto:martin.petersen@xxxxxxxxxx] > Sent: Tuesday, August 29, 2017 6:31 PM > To: Long Li <longli@xxxxxxxxxxxxx> > Cc: KY Srinivasan <kys@xxxxxxxxxxxxx>; Haiyang Zhang > <haiyangz@xxxxxxxxxxxxx>; James E . J . Bottomley > <JBottomley@xxxxxxxx>; devel@xxxxxxxxxxxxxxxxxxxxxx; linux- > scsi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Long Li > <longli@xxxxxxxxxxxxx> > 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, thanks for pointing this out. This should also go to stable trees. Cc: stable@xxxxxxxxxxxxxxx > > -- > Martin K. Petersen Oracle Linux Engineering
