On Fri, Jan 08, 2021 at 05:52:11PM +0800, Ruan Shiyang wrote:
>
>
> On 2021/1/5 上午7:34, Darrick J. Wong wrote:
> > On Fri, Dec 18, 2020 at 10:11:54AM +0800, Ruan Shiyang wrote:
> > >
> > >
> > > On 2020/12/16 上午4:51, Darrick J. Wong wrote:
> > > > On Tue, Dec 15, 2020 at 08:14:13PM +0800,
On 2021/1/5 上午7:34, Darrick J. Wong wrote:
On Fri, Dec 18, 2020 at 10:11:54AM +0800, Ruan Shiyang wrote:
On 2020/12/16 上午4:51, Darrick J. Wong wrote:
On Tue, Dec 15, 2020 at 08:14:13PM +0800, Shiyang Ruan wrote:
With the support of ->rmap(), it is possible to obtain the superblock on
a
On Fri, Dec 18, 2020 at 10:11:54AM +0800, Ruan Shiyang wrote:
>
>
> On 2020/12/16 上午4:51, Darrick J. Wong wrote:
> > On Tue, Dec 15, 2020 at 08:14:13PM +0800, Shiyang Ruan wrote:
> > > With the support of ->rmap(), it is possible to obtain the superblock on
> > > a mapped device.
> > >
> > > If
On 2020/12/16 上午4:51, Darrick J. Wong wrote:
On Tue, Dec 15, 2020 at 08:14:13PM +0800, Shiyang Ruan wrote:
With the support of ->rmap(), it is possible to obtain the superblock on
a mapped device.
If a pmem device is used as one target of mapped device, we cannot
obtain its superblock
On 2020/12/16 下午1:43, Jane Chu wrote:
On 12/15/2020 4:14 AM, Shiyang Ruan wrote:
#ifdef CONFIG_SYSFS
+int bd_disk_holder_corrupted_range(struct block_device *bdev, loff_t
off,
+ size_t len, void *data);
int bd_link_disk_holder(struct block_device *bdev, struct gendisk
On 12/15/2020 4:14 AM, Shiyang Ruan wrote:
#ifdef CONFIG_SYSFS
+int bd_disk_holder_corrupted_range(struct block_device *bdev, loff_t off,
+ size_t len, void *data);
int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
void
On Tue, Dec 15, 2020 at 12:51:02PM -0800, Darrick J. Wong wrote:
> On Tue, Dec 15, 2020 at 08:14:13PM +0800, Shiyang Ruan wrote:
> > diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
> > index 4688bff19c20..e8cfaf860149 100644
> > --- a/drivers/nvdimm/pmem.c
> > +++
On Tue, Dec 15, 2020 at 08:14:13PM +0800, Shiyang Ruan wrote:
> With the support of ->rmap(), it is possible to obtain the superblock on
> a mapped device.
>
> If a pmem device is used as one target of mapped device, we cannot
> obtain its superblock directly. With the help of SYSFS, the mapped
With the support of ->rmap(), it is possible to obtain the superblock on
a mapped device.
If a pmem device is used as one target of mapped device, we cannot
obtain its superblock directly. With the help of SYSFS, the mapped
device can be found on the target devices. So, we iterate the
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