to
quiet the generic_fsdax_supported() path and make it bail out before
logging "dax capability not found" errors.
Adrian Huang (1):
dax: Fix stack overflow when mounting fsdax pmem device
Dan Williams (1):
dm/dax:
r dax_supported check to span multiple
devices")
Cc:
Tested-by: Adrian Huang
Signed-off-by: Jan Kara
Acked-by: Mike Snitzer
Reported-by: kernel test robot
Signed-off-by: Dan Williams
---
Changes since v2 [1]:
- Add dummy definitions for dax_read_{lock,unlock} in the CONFIG_DAX=n
case (0da
r Kergon
Cc: Mike Snitzer
Reported-by: Adrian Huang
Signed-off-by: Dan Williams
---
drivers/md/dm.c |5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index fb0255d25e4b..4a40df8af7d3 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1136,
On Fri, Sep 18, 2020 at 8:31 AM Darrick J. Wong wrote:
>
> On Thu, Sep 17, 2020 at 10:30:03PM -0700, Dan Williams wrote:
> > From: Jan Kara
> >
> > DM was calling generic_fsdax_supported() to determine whether a device
> > referenced in the DM table supports
r dax_supported check to span multiple
devices")
Cc:
Tested-by: Adrian Huang
Signed-off-by: Jan Kara
Acked-by: Mike Snitzer
Signed-off-by: Dan Williams
---
Changes since v1 [1]:
- Add missing dax_read_lock() around dax_supported()
[1]: http://lore.kernel.org/r/20200916151445.450-1-j...@s
On Wed, Sep 16, 2020 at 11:57 AM Mikulas Patocka wrote:
>
>
>
> On Wed, 16 Sep 2020, Dan Williams wrote:
>
> > On Wed, Sep 16, 2020 at 10:24 AM Mikulas Patocka
> > wrote:
> > >
> > >
> > >
> > > On Wed, 16 Sep 2020, Dan Willia
uses normal pages to fake this up, so
> > I was wrong about the third caller. But I think we can just call
> > set_page_count just before freeing the page there with a comment
> > explaining what is goin on.
>
> Dan Williams thought that having the ZONE_DEVICE struct pages
>
On Wed, Sep 16, 2020 at 3:57 AM Mikulas Patocka wrote:
>
>
>
> On Tue, 15 Sep 2020, Mikulas Patocka wrote:
>
> >
> >
> > On Tue, 15 Sep 2020, Mikulas Patocka wrote:
> >
> > > > > - __copy_from_user_inatomic_nocache doesn't flush cache for leading
> > > > > and
> > > > > trailing bytes.
> > > >
>
On Wed, Sep 16, 2020 at 10:24 AM Mikulas Patocka wrote:
>
>
>
> On Wed, 16 Sep 2020, Dan Williams wrote:
>
> > On Wed, Sep 16, 2020 at 3:57 AM Mikulas Patocka wrote:
> > >
> > >
> > >
> > > I'm submitting this patch t
On Tue, Sep 15, 2020 at 5:35 AM Mikulas Patocka wrote:
>
> Hi
>
> I am developing a new filesystem suitable for persistent memory - nvfs.
Nice!
> The goal is to have a small and fast filesystem that can be used on
> DAX-based devices. Nvfs maps the whole device into linear address space
> and
On Mon, Sep 14, 2020 at 3:45 PM Ralph Campbell wrote:
>
> ZONE_DEVICE struct pages have an extra reference count that complicates the
> code for put_page() and several places in the kernel that need to check the
> reference count to see that a page is not being used (gup, compaction,
> migration,
a0510ea..d35f6dc22341 100644
> --- a/arch/x86/include/asm/uaccess.h
> +++ b/arch/x86/include/asm/uaccess.h
> @@ -6,6 +6,7 @@
> */
> #include
> #include
> +#include
> #include
> #include
> #include
> @@ -66,12 +67,23 @@ static inline bool pagefault_disabled(void);
> * Return: true (nonzero) if the memory block may be valid, false (zero)
> * if it is definitely invalid.
> */
> -#define access_ok(addr, size) \
unnecessary whitespace change?
Other than that and the optional s/force/enforce/ rename + cast
collapse you can add:
Reviewed-by: Dan Williams
On Mon, Sep 14, 2020 at 10:56 AM Borislav Petkov wrote:
>
> On Thu, Sep 10, 2020 at 12:22:53PM -0500, Josh Poimboeuf wrote:
> > +/*
> > + * Sanitize a user pointer such that it becomes NULL if it's not a valid
> > user
> > + * pointer. This prevents speculative dereferences of user-controlled
On Thu, Aug 27, 2020 at 9:46 AM Derrick, Jonathan
wrote:
>
> On Thu, 2020-08-27 at 17:23 +0100, h...@infradead.org wrote:
> > On Thu, Aug 27, 2020 at 04:13:44PM +, Derrick, Jonathan wrote:
> > > On Thu, 2020-08-27 at 06:34 +, h...@infradead.org wrote:
> > > > On Wed, Aug 26, 2020 at
On Fri, Aug 21, 2020 at 11:30 AM David Hildenbrand wrote:
>
> On 21.08.20 20:27, Dan Williams wrote:
> > On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote:
> >>
> >>>>
> >>>> 1. On x86-64, e820 indicates "soft-reserved" memo
On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote:
>
> >>
> >> 1. On x86-64, e820 indicates "soft-reserved" memory. This memory is not
> >> automatically used in the buddy during boot, but remains untouched
> >> (similar to pmem). But as it involves ACPI as well, it could also be
> >> used
On Mon, Aug 3, 2020 at 12:48 AM David Hildenbrand wrote:
>
> [...]
>
> > Well, no v5.8-rc8 to line this up for v5.9, so next best is early
> > integration into -mm before other collisions develop.
> >
> > Chatted with Justin offline and it currently appears that the missing
> > numa information
On Thu, Aug 13, 2020 at 12:03 PM Linus Torvalds
wrote:
>
> On Wed, Aug 12, 2020 at 8:17 PM Hugh Dickins wrote:
> >
> > Since commit 2a9127fcf229 ("mm: rewrite wait_on_page_bit_common() logic")
> > improved unlock_page(), it has become more noticeable how cow_user_page()
> > in a kernel with
6/copy_mc: Introduce
> > copy_mc_generic()")
> > url:
> > https://github.com/0day-ci/linux/commits/Dan-Williams/Renovate-memcpy_mcsafe-with-copy_mc_to_-user-kernel/20200802-014046
> >
> >
> > in testcase: fio-basic
> > on test machine: 96 threads
lerman
Cc: Benjamin Herrenschmidt
Cc: Dan Williams
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ben Skeggs
Cc: David Airlie
Cc: Daniel Vetter
Cc: Ira Weiny
Cc: Jason Gunthorpe
Signed-off-by: Dan Williams
---
arch/powerpc/kvm/book3s_hv_uvmem.c | 13 +++--
drivers/dax/bus.c
d-by: Joao Martins
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 230 +++-
drivers/dax/dax-private.h |9 +-
drivers/dax/device.c | 55 ++
drivers/dax/kmem.c | 132 +++
tools/test
In support of device-dax growing the ability to front physically
dis-contiguous ranges of memory, update devm_memremap_pages() to track
multiple ranges with a single reference counter and devm instance.
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Dan Williams
Cc
iewed-by: Greg Kroah-Hartman
Signed-off-by: Dan Williams
---
drivers/base/core.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 2169c5132558..231189dd6599 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -3328,7 +332
is enabled.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 191 +
drivers/dax/dax-private.h | 14 +++
2 files changed, 203 insertions(+), 2 deletions(-)
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 8dd82ea9d53d
-off-by: Joao Martins
Link: https://lore.kernel.org/r/20200716172913.19658-4-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/hmem/hmem.c |5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index
9658-5-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 64 +
1 file changed, 64 insertions(+)
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index b984213c315f..092112bba6ed 100644
--- a/drivers/dax/bus.c
+++ b/d
with 2M and then we switch to 1G. So, we
validate all ranges against the new value being attempted,
post resizing.
Signed-off-by: Joao Martins
Link: https://lore.kernel.org/r/20200716172913.19658-3-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 93
_dax,kmem}/bind
echo dax0.1 > ../drivers/{device_dax,kmem}/bind
Instances can be destroyed by:
echo $device > $(readlink -f $device)../dax_region/delete
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 161 ++---
: https://lore.kernel.org/r/20200716172913.19658-2-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/bus.c |1 +
drivers/dax/dax-private.h |3 +++
drivers/dax/device.c | 37 +++--
3 files changed, 19 insertions(+), 22
.
- The "Hot-remove not yet implemented." comment is stale since hotremove
support is now included.
Cc: David Hildenbrand
Cc: Vishal Verma
Cc: Dave Hansen
Cc: Pavel Tatashin
Signed-off-by: Dan Williams
---
drivers/dax/dax-private.h |3 -
drivers/dax/kmem.c
Anvin"
Cc: x...@kernel.org
Acked-by: Ard Biesheuvel
Signed-off-by: Dan Williams
---
arch/x86/kernel/e820.c | 16 +++-
drivers/firmware/efi/x86_fake_mem.c | 12 +---
2 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/e820.c
not request.
For now just add the device creation, teardown, and ->probe()
prevention. A later patch will arrange for the 'dax/size' attribute to
be writable to allocate capacity from the region.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c |
the resource range via a new @range property of 'struct
dev_dax_data'.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 29 +++--
drivers/dax/bus.h |2 ++
drivers/dax/dax-private.h |9 -
drivers/dax/device.c
All callers specify the same flags to alloc_dax_region(), so there is no
need to allow for anything other than PFN_DEV|PFN_MAP, or carry a
->pfn_flags around on the region. Device-dax instances are always page
backed.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bu
In preparation for adding more parameters to instance creation, move
existing parameters to a new struct.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 14 +++---
drivers/dax/bus.h | 16
drivers/dax/hmem/hmem.c |8
Cc: Wei Yang
Cc: Tom Lendacky
Signed-off-by: Dan Williams
---
kernel/resource.c | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/kernel/resource.c b/kernel/resource.c
index 841737bbda9e..f1175ce93a1d 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
message in the generic memory_add_physaddr_to_nid()
implementation is fixed up to properly reflect that
memory_add_physaddr_to_nid() communicates "online" node info and
phys_to_target_node() indicates "target / to-be-onlined" node info.
Cc: David Hildenbrand
Cc: Mike Rapoport
Cc: Jia He
Signed-of
ain values and instead relies on
numa_map_to_online_node() to determine the numa node for the device.
Cc: "Rafael J. Wysocki"
Link:
https://lore.kernel.org/r/158318761484.2216124.2049322072599482736.st...@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams
---
drivers/acpi
uvel
Cc: "Rafael J. Wysocki"
Cc: Jeff Moyer
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: Joao Martins
Signed-off-by: Dan Williams
---
drivers/dax/hmem/Makefile |3 ++-
drivers/dax/hmem/device.c | 35 +++
2 files changed, 37 insertions(+), 1
. This is per Jeff's feedback the last time dynamic device-dax
capacity allocation support was discussed.
Link:
https://lore.kernel.org/linux-nvdimm/x49shpp3zn8@segfault.boston.devel.redhat.com
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 120
rnel.org/r/154899811738.3165233.12325692939590944259.st...@dwillia2-desk3.amr.corp.intel.com
[5]: http://lore.kernel.org/r/20200110190313.17144-1-joao.m.mart...@oracle.com
---
Dan Williams (19):
x86/numa: Cleanup configuration dependent command-line options
x86/numa: Add 'nohmat' option
ef
ov
Cc: "H. Peter Anvin"
Signed-off-by: Dan Williams
---
Documentation/x86/x86_64/boot-options.rst |4
arch/x86/mm/numa.c|2 ++
drivers/acpi/numa/hmat.c |8 +++-
include/acpi/acpi_numa.h |8
4 files ch
at compile-time.
Suggested-by: Rafael J. Wysocki
Signed-off-by: Dan Williams
---
arch/x86/include/asm/numa.h |8 +++-
arch/x86/mm/numa.c |8 ++--
arch/x86/mm/numa_emulation.c |3 ++-
arch/x86/xen/enlighten_pv.c |2 +-
drivers/acpi/numa/srat.c |9
Apr 30, 2020 at 6:21 PM Dan Williams
wrote:
> >
> > However now I see that copy_user_generic() works for the wrong reason.
> > It works because the exception on the source address due to poison
> > looks no different than a write fault on the user address to the
Cc: Linus Torvalds
Reviewed-by: Tony Luck
Reported-by: Erwin Tsaur
Tested-by: Erwin Tsaur
Fixes: 92b0729c34ca ("x86/mm, x86/mce: Add memcpy_mcsafe()")
Signed-off-by: Dan Williams
---
arch/x86/include/asm/uaccess.h |3 +++
arch/x86/lib/copy_mc.c | 12 +---
arch/
longer accurate and
copy_safe() is proposed as its replacement. x86 grows a copy_safe_fast()
implementation as a default implementation that is independent of
detecting the presence of x86-MCA.
---
Dan Williams (2):
x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user,kernel}()
x86/co
On Fri, Jul 31, 2020 at 8:51 PM Randy Dunlap wrote:
>
> On 7/31/20 8:25 PM, Dan Williams wrote:
> > Disable parsing of the HMAT for debug, to workaround broken platform
> > instances, or cases where it is otherwise not wanted.
> >
> > ---
> > arch/x86/mm/numa
In support of device-dax growing the ability to front physically
dis-contiguous ranges of memory, update devm_memremap_pages() to track
multiple ranges with a single reference counter and devm instance.
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Dan Williams
Cc
lerman
Cc: Benjamin Herrenschmidt
Cc: Dan Williams
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ben Skeggs
Cc: David Airlie
Cc: Daniel Vetter
Cc: Ira Weiny
Cc: Jason Gunthorpe
Signed-off-by: Dan Williams
---
arch/powerpc/kvm/book3s_hv_uvmem.c | 13 +++--
drivers/dax/bus.c
-off-by: Joao Martins
Link: https://lore.kernel.org/r/20200716172913.19658-4-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/hmem/hmem.c |5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/dax/hmem/hmem.c b/drivers/dax/hmem/hmem.c
index
with 2M and then we switch to 1G. So, we
validate all ranges against the new value being attempted,
post resizing.
Signed-off-by: Joao Martins
Link: https://lore.kernel.org/r/20200716172913.19658-3-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 102
: https://lore.kernel.org/r/20200716172913.19658-2-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/bus.c |1 +
drivers/dax/dax-private.h |1 +
drivers/dax/device.c | 35 +++
3 files changed, 17 insertions(+), 20 deletions
9658-5-joao.m.mart...@oracle.com
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 64 +
1 file changed, 64 insertions(+)
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 7a9439132573..aa67555ba183 100644
--- a/drivers/dax/bus.c
+++ b/d
d-by: Joao Martins
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 230 +++-
drivers/dax/dax-private.h |9 +-
drivers/dax/device.c | 55 ++
drivers/dax/kmem.c | 132 +++
tools/test
is enabled.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 191 +
drivers/dax/dax-private.h | 14 +++
2 files changed, 203 insertions(+), 2 deletions(-)
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index f342e36c69a1
In preparation for adding more parameters to instance creation, move
existing parameters to a new struct.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 14 +++---
drivers/dax/bus.h | 16
drivers/dax/hmem/hmem.c |8
the resource range via a new @range property of 'struct
dev_dax_data'.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 29 +++--
drivers/dax/bus.h |2 ++
drivers/dax/dax-private.h |9 -
drivers/dax/device.c
not request.
For now just add the device creation, teardown, and ->probe()
prevention. A later patch will arrange for the 'dax/size' attribute to
be writable to allocate capacity from the region.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c |
_dax,kmem}/bind
echo dax0.1 > ../drivers/{device_dax,kmem}/bind
Instances can be destroyed by:
echo $device > $(readlink -f $device)../dax_region/delete
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 161 ++---
.
- The "Hot-remove not yet implemented." comment is stale since hotremove
support is now included.
Cc: David Hildenbrand
Cc: Vishal Verma
Cc: Dave Hansen
Cc: Pavel Tatashin
Signed-off-by: Dan Williams
---
drivers/dax/dax-private.h |3 -
drivers/dax/kmem.c
iewed-by: Greg Kroah-Hartman
Signed-off-by: Dan Williams
---
drivers/base/core.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 2169c5132558..231189dd6599 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -3328,7 +332
ain values and instead relies on
numa_map_to_online_node() to determine the numa node for the device.
Cc: "Rafael J. Wysocki"
Link:
https://lore.kernel.org/r/158318761484.2216124.2049322072599482736.st...@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams
---
drivers/acpi
message in the generic memory_add_physaddr_to_nid()
implementation is fixed up to properly reflect that
memory_add_physaddr_to_nid() communicates "online" node info and
phys_to_target_node() indicates "target / to-be-onlined" node info.
Cc: David Hildenbrand
Cc: Mike Rapoport
Cc: Jia He
Signed-of
. This is per Jeff's feedback the last time dynamic device-dax
capacity allocation support was discussed.
Link:
https://lore.kernel.org/linux-nvdimm/x49shpp3zn8@segfault.boston.devel.redhat.com
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 120
uvel
Cc: "Rafael J. Wysocki"
Cc: Jeff Moyer
Cc: Catalin Marinas
Cc: Will Deacon
Reviewed-by: Joao Martins
Signed-off-by: Dan Williams
---
drivers/dax/hmem/Makefile |3 ++-
drivers/dax/hmem/device.c | 35 +++
2 files changed, 37 insertions(+), 1
at compile-time.
Suggested-by: Rafael J. Wysocki
Signed-off-by: Dan Williams
---
arch/x86/include/asm/numa.h |8 +++-
arch/x86/mm/numa.c |8 ++--
arch/x86/mm/numa_emulation.c |3 ++-
arch/x86/xen/enlighten_pv.c |2 +-
drivers/acpi/numa/srat.c |9
Anvin"
Cc: x...@kernel.org
Acked-by: Ard Biesheuvel
Signed-off-by: Dan Williams
---
arch/x86/kernel/e820.c | 16 +++-
drivers/firmware/efi/x86_fake_mem.c | 12 +---
2 files changed, 24 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kernel/e820.c
ov
Cc: "H. Peter Anvin"
Signed-off-by: Dan Williams
---
arch/x86/mm/numa.c |2 ++
drivers/acpi/numa/hmat.c |8 +++-
include/acpi/acpi_numa.h |8
3 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 87c528
All callers specify the same flags to alloc_dax_region(), so there is no
need to allow for anything other than PFN_DEV|PFN_MAP, or carry a
->pfn_flags around on the region. Device-dax instances are always page
backed.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bu
Cc: Wei Yang
Cc: Tom Lendacky
Signed-off-by: Dan Williams
---
kernel/resource.c | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/kernel/resource.c b/kernel/resource.c
index 841737bbda9e..f1175ce93a1d 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
rnel.org/r/20200110190313.17144-1-joao.m.mart...@oracle.com
---
Dan Williams (19):
x86/numa: Cleanup configuration dependent command-line options
x86/numa: Add 'nohmat' option
efi/fake_mem: Arrange for a resource entry per efi_fake_mem instance
ACPI: HMAT: Refactor hmat_register_tar
x180 [nfit]
acpi_nfit_scrub+0x36/0xb0 [nfit]
process_one_work+0x23c/0x580
worker_thread+0x50/0x3b0
Otherwise the implementation correctly aborts when NULL is returned from
devm_kzalloc() in ars_status_alloc().
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Signed-off-by: Da
On Wed, Jul 8, 2020 at 7:06 PM Jia He wrote:
>
> This fixies a few issues when I tried to enable pmem as RAM device on arm64.
What NVDIMM bus driver is being used in this case? The ACPI NFIT
driver? I'm just looking to see if currently deployed
phys_to_target_node() is sufficient, or if this is
On Thu, Jul 16, 2020 at 10:31 AM Joao Martins wrote:
>
> Introduce a device align attribute. While doing so,
> rename the region align attribute to be more explicitly
> named as so, but keep it named as @align to retain the API
> for tools like daxctl.
>
> Changes on align may not always be
On Tue, Jul 21, 2020 at 9:29 AM Greg KH wrote:
>
> On Tue, Jul 21, 2020 at 09:02:15AM -0700, Dave Jiang wrote:
> > v2:
>
> "RFC" to me means "I don't really think this is mergable, so I'm
> throwing it out there." Which implies you know it needs more work
> before others should review it as you
On Mon, Jul 20, 2020 at 5:14 PM Vishal Verma wrote:
>
> On Mon, 2020-07-20 at 17:02 -0700, Randy Dunlap wrote:
> > Hi Dan,
> >
> > Documentation comments below:
>
> Dan, Randy,
>
> I'm happy to fix these up when applying.
Sounds good. Thanks Vishal.
On Mon, Jul 20, 2020 at 5:02 PM Randy Dunlap wrote:
>
> Hi Dan,
>
> Documentation comments below:
>
> On 7/20/20 3:08 PM, Dan Williams wrote:
> > Abstract platform specific mechanics for nvdimm firmware activation
> > behind a handful of generic ops. At
/documents/IntelOptanePMem_DSM_Interface-V2.0.pdf
Signed-off-by: Dan Williams
---
drivers/acpi/nfit/core.c | 86 ++--
drivers/acpi/nfit/intel.h | 53 +++
drivers/acpi/nfit/nfit.h | 25 -
include/uapi/linux/ndctl.h |3 +
these
sensitive attributes add an explicit helper with the _ADMIN_ identifier
for DEVICE_ATTR_ADMIN_{RO,RW}.
Reviewed-by: Greg Kroah-Hartman
Cc: "Rafael J. Wysocki"
Signed-off-by: Dan Williams
---
include/linux/device.h |4
include/linux/sysfs.h |7 +++
2 files c
The ND_CMD_CALL path only applies to the nfit_test0 emulated DIMMs.
Cleanup occurrences of (i - t->dcr_idx) since that offset fixup only
applies to cases where nfit_test1 needs a bus-local index.
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Signed-off-by: Dan Williams
---
tools/test
Move libnvdimm sysfs attributes that currently use an open coded
DEVICE_ATTR() to hide sensitive root-only information (physical memory
layout) to the new DEVICE_ATTR_ADMIN_RO() helper.
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Signed-off-by: Dan Williams
---
drivers/nvdimm
E timeouts and the like.
Cc: Dave Jiang
Cc: Ira Weiny
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
Documentation/ABI/testing/sysfs-bus-nfit | 19 +
drivers/acpi/nfit/core.c | 41 +++
drivers/acpi/nfit/intel.c| 386 ++
drivers/acpi/nf
In preparation for adding a mocked implementation of the
firmware-activate bus-info command, rework nfit_ctl_test() to operate on
a local command payload wrapped in a 'struct nd_cmd_pkg'.
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Signed-off-by: Dan Williams
---
tools/testing/nvdimm/test
in parallel. Simulate that DIMM activation
happens serially, 1 second per-DIMM, and limit the max at 3 seconds. The
nfit_test0 bus emulates 5 DIMMs so it will take 2 activations to update
all DIMMs.
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Reported-by: Andy Shevchenko
Signed-off-by: Dan Williams
Cc: Len Brown
Cc: Jonathan Corbet
Cc: Dave Jiang
Cc: Vishal Verma
[rafael: hibernate_quiet_exec() proposal]
Co-developed-by: "Rafael J. Wysocki"
Signed-off-by: Dan Williams
---
Documentation/ABI/testing/sysfs-bus-nvdimm |2
.../driver-api/nvdimm/firmware-a
Arrange the for nfit_test_ctl() path to dump command payloads similarly
to the acpi_nfit_ctl() path. This is useful for comparing the
sequence of command events between an emulated ACPI-NFIT platform and a
real one.
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Signed-off-by: Dan Williams
", or can be forced
to "live" if there is a explicit knowledge that allowing applications
and devices to race the quiesce timeout will have no adverse effects.
ndctl activate-firmware nfit_test.0 [--force]
These patches are passing an updated version of the ndctl
"firm
k.
Cc: Vishal Verma
Cc: Dave Jiang
Cc: Ira Weiny
Signed-off-by: Dan Williams
---
drivers/acpi/nfit/core.c |8
drivers/acpi/nfit/nfit.h |2 +-
include/linux/libnvdimm.h|1 -
tools/testing/nvdimm/test/nfit.c | 16
4 files chang
ted/whitelisted dimm command
marshaling mechanism")
Cc:
Signed-off-by: Dan Williams
---
drivers/acpi/nfit/core.c | 11 +--
drivers/acpi/nfit/nfit.h |1 -
drivers/nvdimm/bus.c | 16
include/linux/libnvdimm.h |2 ++
include/uapi/linux/ndctl.h
On Thu, Jul 16, 2020 at 6:19 AM Joao Martins wrote:
>
> On 7/12/20 5:28 PM, Dan Williams wrote:
> > In support of interrogating the physical address layout of a device with
> > dis-contiguous ranges, introduce a sysfs directory with 'start', 'end',
> > and
l dependency, i.e. if all memory being "published" is
> transitively reachable via the pointer itself. But this pairing is
> somewhat confusing and error-prone. So just upgrade the read side to
> smp_load_acquire() so that it clearly pairs with smp_store_release().
>
> Cc: D
On Mon, Jul 13, 2020 at 9:36 AM Ralph Campbell wrote:
>
>
> On 7/12/20 9:27 AM, Dan Williams wrote:
> > The 'struct resource' in 'struct dev_pagemap' is only used for holding
> > resource span information. The other fields, 'name', 'flags', 'desc',
> > 'parent', 'si
On Mon, Jul 13, 2020 at 9:13 AM Greg Kroah-Hartman
wrote:
>
> On Mon, Jul 13, 2020 at 09:09:18AM -0700, Dan Williams wrote:
> > On Mon, Jul 13, 2020 at 8:52 AM Greg Kroah-Hartman
> > wrote:
> > >
> > > On Mon, Jul 13, 2020 at 08:39:43AM -0700, Dan Williams
On Mon, Jul 13, 2020 at 8:52 AM Greg Kroah-Hartman
wrote:
>
> On Mon, Jul 13, 2020 at 08:39:43AM -0700, Dan Williams wrote:
> > On Sun, Jul 12, 2020 at 10:09 AM Greg Kroah-Hartman
> > wrote:
> > >
> > > On Sun, Jul 12, 2020 at 09:27:37AM -0700, Dan Wil
On Sun, Jul 12, 2020 at 9:26 PM Vinod Koul wrote:
>
> Hi Mauro,
>
> On 09-07-20, 13:11, Mauro Carvalho Chehab wrote:
> > Em Mon, 06 Jul 2020 06:30:01 -0700
> > Joe Perches escreveu:
> > >
> > > $ git grep -i -w -P '\w*slave\w*' drivers | \
> > > cut -f1,2 -d/ | uniq -c | sort -rn | head -20 |
On Mon, Jul 13, 2020 at 12:04 AM Mike Rapoport wrote:
>
> Hi Dan,
>
> On Sun, Jul 12, 2020 at 09:26:48AM -0700, Dan Williams wrote:
> > Similar to how generic memory_add_physaddr_to_nid() interrogates
> > memblock data for numa information, introduce
> > g
On Sun, Jul 12, 2020 at 11:58 PM Mike Rapoport wrote:
>
> Hi Dan,
>
> On Sun, Jul 12, 2020 at 09:26:43AM -0700, Dan Williams wrote:
> > For architectures that opt into storing their numa data in memblock
> > (only ARM64 currently), add a memblock generic way to i
On Sun, Jul 12, 2020 at 10:09 AM Greg Kroah-Hartman
wrote:
>
> On Sun, Jul 12, 2020 at 09:27:37AM -0700, Dan Williams wrote:
> > Use sysfs_streq() in device_find_child_by_name() to allow it to use a
> > sysfs input string that might contain a trailing newline.
> >
>
In support of device-dax growing the ability to front physically
dis-contiguous ranges of memory, update devm_memremap_pages() to track
multiple ranges with a single reference counter and devm instance.
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Dan Williams
Cc
is enabled.
Cc: Vishal Verma
Signed-off-by: Dan Williams
---
drivers/dax/bus.c | 191 +
drivers/dax/dax-private.h | 14 +++
2 files changed, 203 insertions(+), 2 deletions(-)
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index f342e36c69a1
701 - 800 of 9322 matches
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