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On Mon, Oct 16, 2017 at 10:43 AM, Dan Williams wrote:
> On Mon, Oct 16, 2017 at 12:26 AM, Christoph Hellwig wrote:
>> On Fri, Oct 13, 2017 at 11:31:45AM -0600, Jason Gunthorpe wrote:
>>> I don't think that really represents how lots of apps actually use
>>>
Coverity complains that rc, passed to btt_xlat_status, may be
used uninitialized. In that case, we may also dereference a
NULL pointer. Fix it by only calling btt_xlat_status with a
valid arena.
Signed-off-by: Jeff Moyer
diff --git a/ndctl/check.c b/ndctl/check.c
index
On Mon, Oct 16, 2017 at 12:26 AM, Christoph Hellwig wrote:
> On Fri, Oct 13, 2017 at 11:31:45AM -0600, Jason Gunthorpe wrote:
>> I don't think that really represents how lots of apps actually use
>> RDMA.
>>
>> RDMA is often buried down in the software stack (eg in a MPI), and by
>>
>
> On Fri, Oct 13, 2017 at 06:48:15AM -0400, Pankaj Gupta wrote:
> > > On Thu, Oct 12, 2017 at 09:20:26PM +0530, Pankaj Gupta wrote:
> > > > +static blk_qc_t virtio_pmem_make_request(struct request_queue *q,
> > > > + struct bio *bio)
> > > > +{
> > > > +
On Fri, Oct 13, 2017 at 06:48:15AM -0400, Pankaj Gupta wrote:
> > On Thu, Oct 12, 2017 at 09:20:26PM +0530, Pankaj Gupta wrote:
> > > +static blk_qc_t virtio_pmem_make_request(struct request_queue *q,
> > > + struct bio *bio)
> > > +{
> > > + blk_status_t rc = 0;
> > > + struct
I don't think that really represents how lots of apps actually use
RDMA.
RDMA is often buried down in the software stack (eg in a MPI), and by
the time a mapping gets used for RDMA transfer the link between the
FD, mmap and the MR is totally opaque.
Having a MR specific notification means the
Hey folks, (chiming in very late here...)
I think, if you want to build a uAPI for notification of MR lease
break, then you need show how it fits into the above software model:
- How it can be hidden in a RDMA specific library
So, here's a strawman can ibv_poll_cq() start returning
On Thu 12-10-17 09:32:17, Linus Torvalds wrote:
> On Thu, Oct 12, 2017 at 6:51 AM, Jan Kara wrote:
> >
> > When thinking a bit more about this I've realized one problem: Currently
> > user can call mmap() with MAP_SHARED type and MAP_SYNC or MAP_DIRECT flags
> > and he will get the
On Thu, Oct 12, 2017 at 09:32:17AM -0700, Linus Torvalds wrote:
> On Thu, Oct 12, 2017 at 6:51 AM, Jan Kara wrote:
> >
> > When thinking a bit more about this I've realized one problem: Currently
> > user can call mmap() with MAP_SHARED type and MAP_SYNC or MAP_DIRECT flags
> > and
On Fri, Oct 13, 2017 at 11:22:21AM -0700, Dan Williams wrote:
> So, here's a strawman can ibv_poll_cq() start returning ibv_wc_status
> == IBV_WC_LOC_PROT_ERR when file coherency is lost. This would make
> the solution generic across DAX and non-DAX. What's you're feeling for
> how well
On Fri, Oct 13, 2017 at 11:31:45AM -0600, Jason Gunthorpe wrote:
> I don't think that really represents how lots of apps actually use
> RDMA.
>
> RDMA is often buried down in the software stack (eg in a MPI), and by
> the time a mapping gets used for RDMA transfer the link between the
> FD, mmap
On Fri, Oct 13, 2017 at 10:38:22AM -0600, Jason Gunthorpe wrote:
> > scheme specific to RDMA which seems like a waste to me when we can
> > generically signal an event on the fd for any event that effects any
> > of the vma's on the file. The FL_LAYOUT lease impacts the entire file,
> > so as far
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