From: Pankaj Gupta
Return from "pmem_submit_bio" when asynchronous flush is in
process in other context.
Signed-off-by: Pankaj Gupta
---
drivers/nvdimm/pmem.c | 17 -
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
From: Pankaj Gupta
Jeff reported preflush order issue with the existing implementation
of virtio pmem preflush. Dan suggested[1] to implement asynchronous flush
for virtio pmem using work queue as done in md/RAID. This patch series
intends to solve the preflush ordering issue and also makes
From: Pankaj Gupta
Implement asynchronous flush for virtio pmem using work queue
to solve the preflush ordering issue. Also, coalesce the flush
requests when a flush is already in process.
Signed-off-by: Pankaj Gupta
---
drivers/nvdimm/nd_virtio.c | 72
On Mon, Jul 19, 2021 at 09:08:20AM -0700, Darrick J. Wong wrote:
> IMHO, constifiying functions is a good way to signal to /programmers/
> that they're not intended to touch the arguments, so
Yes, that is the point here. Basically the iomap and iter should
be pretty much const, and we almost get
On Tue, Jul 20, 2021 at 07:48:38AM +1000, Dave Chinner wrote:
> We should avoid namespace conflicts where function names shadow
> object types. iomap_iterate() is fine as the function name - there's
> no need for abbreviation here because it's not an overly long name.
> This will makes it clearly
On Mon, Jul 19, 2021 at 09:56:00AM -0700, Darrick J. Wong wrote:
> Linus previously complained to me about filesystem code (especially
> iomap since it was "newer") (ab)using loff_t variables to store the
> lengths of byte ranges. It was "loff_t length;" (or so willy
> recollects) that tripped
On Tue, Jul 20, 2021 at 08:10:05AM +1000, Dave Chinner wrote:
> At first I wondered "iomi? Strange name, why is this one-off name
> used?" and then I realised it's because this function also takes an
> struct iov_iter named "iter".
>
> That's going to cause confusion in the long run - iov_iter
On Mon, Jul 26, 2021 at 10:22:36AM +0200, Christoph Hellwig wrote:
> On Mon, Jul 19, 2021 at 10:22:47AM -0700, Darrick J. Wong wrote:
> > > -static loff_t
> > > -iomap_seek_hole_actor(struct inode *inode, loff_t start, loff_t length,
> > > - void *data, struct iomap *iomap, struct
On Mon, Jul 19, 2021 at 10:05:45AM -0700, Darrick J. Wong wrote:
> > bno = 0;
> > - ret = iomap_apply(inode, pos, blocksize, 0, ops, ,
> > - iomap_bmap_actor);
> > + while ((ret = iomap_iter(, ops)) > 0) {
> > + if (iter.iomap.type != IOMAP_MAPPED)
> > +
On Mon, Jul 26, 2021 at 10:19:42AM +0200, Christoph Hellwig wrote:
> On Mon, Jul 19, 2021 at 10:05:45AM -0700, Darrick J. Wong wrote:
> > > bno = 0;
> > > - ret = iomap_apply(inode, pos, blocksize, 0, ops, ,
> > > - iomap_bmap_actor);
> > > + while ((ret = iomap_iter(, ops)) >
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