On 21/03/19 09:52AM, Shiyang Ruan wrote:
> Punch hole on a reflinked file needs dax_copy_edge() too. Otherwise,
> data in not aligned area will be not correct. So, add the srcmap to
> dax_iomap_zero() and replace memset() as dax_copy_edge().
>
> Signed-off-by: Shiyang Ruan
> ---
> fs/dax.c
On 21/03/19 09:52AM, Shiyang Ruan wrote:
> We replace the existing entry to the newly allocated one in case of CoW.
> Also, we mark the entry as PAGECACHE_TAG_TOWRITE so writeback marks this
> entry as writeprotected. This helps us snapshots so new write
> pagefaults after snapshots trigger a CoW.
On Wed, 31 Mar 2021, Matthew Wilcox wrote:
> On Tue, Mar 30, 2021 at 06:30:22PM -0700, Hugh Dickins wrote:
> > Running my usual tmpfs kernel builds swapping load, on Sunday's rc4-mm1
> > mmotm (I never got to try rc3-mm1 but presume it behaved the same way),
> > I hit clear_inode()'s BUG_ON(!mappin
On Wed, Mar 31, 2021 at 05:23:45PM +0300, Mike Rapoport wrote:
> From: Mike Rapoport
>
> Yuri Norov says:
>
> If parameter size is the same for native and compat ABIs, we may
> wire a syscall made by compat client to native handler. This is
> true for unsigned int, but not true for unsigne
Fir daxctl device listings, if in 'system-ram' mode, it is useful to
know whether the memory associated with the device is online or not.
Since the memory is comprised of a number of 'memblocks', and it is
possible (albeit rare) to have a subset of them online, and the rest
offline, we can't just u
On 31.03.21 16:23, Mike Rapoport wrote:
From: Mike Rapoport
Yuri Norov says:
If parameter size is the same for native and compat ABIs, we may
wire a syscall made by compat client to native handler. This is
true for unsigned int, but not true for unsigned long or pointer.
That's wh
From: Mike Rapoport
Yuri Norov says:
If parameter size is the same for native and compat ABIs, we may
wire a syscall made by compat client to native handler. This is
true for unsigned int, but not true for unsigned long or pointer.
That's why I suggest using unsigned int and so avoid cr
"Aneesh Kumar K.V" writes:
> Shivaprasad G Bhat writes:
>
>> Add support for ND_REGION_ASYNC capability if the device tree
>> indicates 'ibm,hcall-flush-required' property in the NVDIMM node.
>> Flush is done by issuing H_SCM_FLUSH hcall to the hypervisor.
>>
>> If the flush request failed, the h
