Excerpts from Haren Myneni's message of May 21, 2021 7:39 pm:
>
> NX generates an interrupt when sees a fault on the user space
> buffer and the hypervisor forwards that interrupt to OS. Then
> the kernel handles the interrupt by issuing H_GET_NX_FAULT hcall
> to retrieve the fault CRB information
Geoff Levand writes:
> Hi,
>
> This is a set of patches that fix various DMA related problems in the PS3
> device drivers, and add better error checking and improved message logging.
>
> The gelic network driver had a number of problems and most of the changes are
> in it's sources.
>
> Please con
Nathan Lynch writes:
> Hi Michael,
>
> Michael Ellerman writes:
>> Nathan Lynch writes:
>>> When smp_send_safe_nmi_ipi() indicates that the target CPU has
>>> responded to the IPI, skip the remote paca inspection
>>> fallback. Otherwise both the sending and target CPUs attempt the
>>> backtrace,
Excerpts from Haren Myneni's message of May 21, 2021 7:41 pm:
>
> Changes to create /dev/crypto/nx-gzip interface with VAS register
> and to remove this interface with VAS unregister.
>
Could you include why the change is done, or what goes wrong without it?
Thanks,
Nick
> Signed-off-by: Haren
Excerpts from Haren Myneni's message of May 21, 2021 7:42 pm:
>
> Changes to export the following NXGZIP capabilities through sysfs:
>
> /sys/devices/vio/ibm,compression-v1/NxGzCaps:
Where's the horrible camel case name coming from? PowerVM?
Thanks,
Nick
> min_compress_len /*Recommended minim
Excerpts from Haren Myneni's message of May 21, 2021 7:34 pm:
>
> This patch adds HCALLs and other definitions. Also define structs
> that are used in VAS implementation on powerVM.
>
> Signed-off-by: Haren Myneni
> ---
> arch/powerpc/include/asm/hvcall.h| 7 ++
> arch/powerpc/include/asm
Excerpts from Haren Myneni's message of May 21, 2021 7:33 pm:
>
> Same vas_window struct is used on powerNV and pseries. So this patch
> changes in struct vas_window to support both platforms and also the
> corresponding modifications in powerNV vas code.
>
> On powerNV, vas_window is used for bo
Excerpts from Haren Myneni's message of May 21, 2021 7:32 pm:
> +
> + pid = task_ref->pid;
> + tsk = get_pid_task(pid, PIDTYPE_PID);
> + /*
> + * Process closes send window after all pending NX requests are
> + * completed. In multi-thread applications, a child thread can
> +
Excerpts from Haren Myneni's message of May 21, 2021 7:31 pm:
>
> Take pid and mm references when each window opens and drops during
> close. This functionality is needed for powerNV and pseries. So
> this patch defines the existing code as functions in common book3s
> platform vas-api.c
>
> Sign
Excerpts from Haren Myneni's message of May 21, 2021 7:30 pm:
>
> PowerNV uses registers to open/close VAS windows, and getting the
> paste address. Whereas the hypervisor calls are used on PowerVM.
>
> This patch adds the platform specific user space window operations
> and register with the com
Excerpts from Haren Myneni's message of May 21, 2021 7:28 pm:
>
> Using the same /dev/crypto/nx-gzip interface for both powerNV and
> pseries. So this patch creates platforms/book3s/ and moves VAS API
> to that directory. The actual functionality is not changed.
>
> Signed-off-by: Haren Myneni
>
On 6/1/21 23:56, Christoph Hellwig wrote:
> Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
> request_queue allocation.
>
> Signed-off-by: Christoph Hellwig
> ---
> drivers/block/null_blk/main.c | 11 +--
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
> diff --
On 6/1/21 23:56, Christoph Hellwig wrote:
> Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
> request_queue allocation.
>
> Signed-off-by: Christoph Hellwig
Looks good.
Reviewed-by: Chaitanya Kulkarni
On 6/1/21 23:55, Christoph Hellwig wrote:
> All users are gone now.
>
> Signed-off-by: Christoph Hellwig
Looks good.
Reviewed-by: Chaitanya Kulkarni
On 6/1/21 23:54, Christoph Hellwig wrote:
> Add a new API to allocate a gendisk including the request_queue for use
> with blk-mq based drivers. This is to avoid boilerplate code in drivers.
>
> Signed-off-by: Christoph Hellwig
This would be a nice API to get rid of the couple initialization
cal
On 6/2/21 12:44 AM, Christophe Leroy wrote:
Le 01/06/2021 à 19:53, t...@redhat.com a écrit :
From: Tom Rix
With MPC8XXFADS, there is this linker error
ppc64-linux-ld: m8xx_setup.o: in function `cpm_cascade':
m8xx_setup.c: undefined reference to `cpm_get_irq'
It looks like this config ite
Nicholas Piggin writes:
> From: Suraj Jitindar Singh
>
> The POWER9 vCPU TLB management code assumes all threads in a core share
> a TLB, and that TLBIEL execued by one thread will invalidate TLBs for
> all threads. This is not the case for SMT8 capable POWER9 and POWER10
> (big core) processors
Hi Michael,
Michael Ellerman writes:
> Nathan Lynch writes:
>> When smp_send_safe_nmi_ipi() indicates that the target CPU has
>> responded to the IPI, skip the remote paca inspection
>> fallback. Otherwise both the sending and target CPUs attempt the
>> backtrace, usually creating a misleading (
On 10 May 2021, at 10:36, Zi Yan wrote:
> On 7 May 2021, at 10:00, David Hildenbrand wrote:
>
>> On 07.05.21 13:55, Michal Hocko wrote:
>>> [I haven't read through respective patches due to lack of time but let
>>> me comment on the general idea and the underlying justification]
>>>
>>> On Thu 0
On Wed, Jun 2, 2021 at 8:40 AM Daniel Borkmann wrote:
> On 6/1/21 10:47 PM, Paul Moore wrote:
> > The thing I'm worried about would be the case where a LSM policy
> > change requires that an existing BPF program be removed or disabled.
> > I'm guessing based on the refcounting that there is not pr
On Wed, 02 Jun 2021 16:05:18 +0530
"Naveen N. Rao" wrote:
> It seems to be working fine otherwise. The one limitation though is down
> to how ftrace works on powerpc -- the mcount call is before a function
> sets up its own stackframe. Due to this, we won't ever be able to
> account for the st
On Wed, Jun 02, 2021 at 01:25:24PM +0200, Geert Uytterhoeven wrote:
> Hi Mike,
>
> On Wed, Jun 2, 2021 at 12:54 PM Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map
> > in v5.11.
> >
> > Remove the support for DISCONTI
On Fri, May 28, 2021 at 3:37 AM Paul Moore wrote:
> On Mon, May 17, 2021 at 5:22 AM Ondrej Mosnacek wrote:
> >
> > Commit 59438b46471a ("security,lockdown,selinux: implement SELinux
> > lockdown") added an implementation of the locked_down LSM hook to
> > SELinux, with the aim to restrict which d
On 6/1/21 10:47 PM, Paul Moore wrote:
On Mon, May 31, 2021 at 4:24 AM Daniel Borkmann wrote:
On 5/29/21 8:48 PM, Paul Moore wrote:
[...]
Daniel's patch side steps that worry by just doing the lockdown
permission check when the BPF program is loaded, but that isn't a
great solution if the polic
On Wed, 2021-06-02 at 09:53 +0300, Christoph Hellwig wrote:
> Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
> request_queue allocation.
>
> Signed-off-by: Christoph Hellwig
> ---
> drivers/s390/block/scm_blk.c | 21 ++---
> 1 file changed, 6 insertions(+)
On 20 May 2021 at 01:07am, Nicholas Piggin wrote:
Hmm, okay that probably rules out those notifier changes then.
Can you remind me were you able to rule these out as suspects?
8f6cc75a97d1 powerpc: move norestart trap flag to bit 0
8dc7f0229b78 powerpc: remove partial register save logic
c45ba4f
Hi Mike,
On Wed, Jun 2, 2021 at 12:54 PM Mike Rapoport wrote:
> From: Mike Rapoport
>
> DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map
> in v5.11.
>
> Remove the support for DISCONTIGMEM entirely.
>
> Signed-off-by: Mike Rapoport
Thanks for your patch!
Reviewed-by:
Nathan Lynch writes:
> When smp_send_safe_nmi_ipi() indicates that the target CPU has
> responded to the IPI, skip the remote paca inspection
> fallback. Otherwise both the sending and target CPUs attempt the
> backtrace, usually creating a misleading ("didn't respond to backtrace
> IPI" is wrong)
From: Mike Rapoport
After removal of the DISCONTIGMEM memory model the FLAT_NODE_MEM_MAP
configuration option is equivalent to FLATMEM.
Drop CONFIG_FLAT_NODE_MEM_MAP and use CONFIG_FLATMEM instead.
Signed-off-by: Mike Rapoport
---
include/linux/mmzone.h | 4 ++--
kernel/crash_core.c| 2 +-
From: Mike Rapoport
After removal of DISCINTIGMEM the NEED_MULTIPLE_NODES and NUMA
configuration options are equivalent.
Drop CONFIG_NEED_MULTIPLE_NODES and use CONFIG_NUMA instead.
Done with
$ sed -i 's/CONFIG_NEED_MULTIPLE_NODES/CONFIG_NUMA/' \
$(git grep -wl CONFIG_N
From: Mike Rapoport
Remove description of DISCONTIGMEM from the "Memory Models" document and
update VM sysctl description so that it won't mention DISCONIGMEM.
Signed-off-by: Mike Rapoport
---
Documentation/admin-guide/sysctl/vm.rst | 12 +++
Documentation/vm/memory-model.rst | 45 ++
From: Mike Rapoport
There are several places that mention DISCONIGMEM in comments or have stale
code guarded by CONFIG_DISCONTIGMEM.
Remove the dead code and update the comments.
Signed-off-by: Mike Rapoport
---
arch/ia64/kernel/topology.c | 5 ++---
arch/ia64/mm/numa.c | 5 ++
From: Mike Rapoport
There are no architectures that support DISCONTIGMEM left.
Remove the configuration option and the dead code it was guarding in the
generic memory management code.
Signed-off-by: Mike Rapoport
---
include/asm-generic/memory_model.h | 37 --
incl
From: Mike Rapoport
DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map
in v5.11.
Remove the support for DISCONTIGMEM entirely.
Signed-off-by: Mike Rapoport
---
arch/m68k/Kconfig.cpu | 10 --
arch/m68k/include/asm/page.h| 2 +-
arch/m68k/include/a
From: Mike Rapoport
DISCONTIGMEM was replaced by FLATMEM with freeing of the unused memory map
in v5.11.
Remove the support for DISCONTIGMEM entirely.
Signed-off-by: Mike Rapoport
---
arch/arc/Kconfig | 13
arch/arc/include/asm/mmzone.h | 40 -
From: Mike Rapoport
Arc does not use DISCONTIGMEM to implement high memory, update the comment
describing how high memory works to reflect this.
Signed-off-by: Mike Rapoport
---
arch/arc/mm/init.c | 13 +
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/arch/arc/mm/ini
From: Mike Rapoport
NUMA is marked broken on alpha for more than 15 years and DISCONTIGMEM was
replaced with SPARSEMEM in v5.11.
Remove both NUMA and DISCONTIGMEM support from alpha.
Signed-off-by: Mike Rapoport
---
arch/alpha/Kconfig| 22 ---
arch/alpha/include/asm/machvec.h
From: Mike Rapoport
Hi,
SPARSEMEM memory model was supposed to entirely replace DISCONTIGMEM a
(long) while ago. The last architectures that used DISCONTIGMEM were
updated to use other memory models in v5.11 and it is about the time to
entirely remove DISCONTIGMEM from the kernel.
This set remo
Steven Rostedt wrote:
On Fri, 21 May 2021 12:18:36 +0530
"Naveen N. Rao" wrote:
In preparation to add support for stack tracer to powerpc, move code to
save stack trace and to calculate the frame sizes into a separate weak
function. Also provide access to some of the data structures used by th
Fixes the following W=1 kernel build warning(s):
drivers/ide/pmac.c:1418:12: warning: no previous prototype for
‘pmac_ide_probe’ [-Wmissing-prototypes]
Cc: "David S. Miller"
Cc: Michael Ellerman
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: linux-...@vger.kernel.org
Cc: linuxppc-dev@lis
This set is part of a larger effort attempting to clean-up W=1
kernel builds, which are currently overwhelmingly riddled with
niggly little warnings.
Lee Jones (21):
ide: alim15x3: Document alim15x3_init_one()'s 'id' param
ide: ide-dma: Document ide_dma_unmap_sg()'s missing 'cmd' param
ide:
On Wed, Jun 2, 2021 at 8:55 AM Christoph Hellwig wrote:
>
> Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
> request_queue allocation.
>
> Signed-off-by: Christoph Hellwig
> ---
> drivers/block/rnbd/rnbd-clt.c | 35 ---
> 1 file changed, 8
Le 01/06/2021 à 19:53, t...@redhat.com a écrit :
From: Tom Rix
With MPC8XXFADS, there is this linker error
ppc64-linux-ld: m8xx_setup.o: in function `cpm_cascade':
m8xx_setup.c: undefined reference to `cpm_get_irq'
It looks like this config item is stale, it doesn't build any board support
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/ataflop.c | 16
1 file changed, 4 insertions(+), 12 deletions(-)
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
in
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/z2ram.c | 15 ---
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c
index c1d
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/amiflop.c | 16
1 file changed, 4 insertions(+), 12 deletions(-)
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
in
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/s390/block/scm_blk.c | 21 ++---
1 file changed, 6 insertions(+), 15 deletions(-)
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s39
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/mtd/ubi/block.c | 68 ++---
1 file changed, 29 insertions(+), 39 deletions(-)
diff --git a/drivers/mtd/ubi/block.c b/
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/xen-blkfront.c | 96 +++-
1 file changed, 39 insertions(+), 57 deletions(-)
diff --git a/drivers/block/xen-blkfront
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/sx8.c | 23 +++
1 file changed, 7 insertions(+), 16 deletions(-)
diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 2
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/rnbd/rnbd-clt.c | 35 ---
1 file changed, 8 insertions(+), 27 deletions(-)
diff --git a/drivers/block/rnbd/rnbd-clt
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/rbd.c | 52 -
1 file changed, 18 insertions(+), 34 deletions(-)
diff --git a/drivers/block/rbd.c b/driv
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/paride/pd.c | 30 --
1 file changed, 12 insertions(+), 18 deletions(-)
diff --git a/drivers/block/paride/pd.c b/drivers
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/null_blk/main.c | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_b
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/nbd.c | 53 ++---
1 file changed, 21 insertions(+), 32 deletions(-)
diff --git a/drivers/block/nbd.c b/driv
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/loop.c | 19 ++-
1 file changed, 6 insertions(+), 13 deletions(-)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 95
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/floppy.c | 20 +---
1 file changed, 5 insertions(+), 15 deletions(-)
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
i
Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/aoe/aoeblk.c | 33 -
drivers/block/aoe/aoedev.c | 3 +--
2 files changed, 13 insertions(+), 23 deletions(-)
diff -
All users are gone now.
Signed-off-by: Christoph Hellwig
---
block/blk-mq.c | 22 --
include/linux/blk-mq.h | 4
2 files changed, 26 deletions(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 1e6036e6fd66..25e25177c2b1 100644
--- a/block/blk-mq.c
+++ b/blo
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue
allocation.
Signed-off-by: Christoph Hellwig
---
drivers/cdrom/gdrom.c | 45 ---
1 file changed, 21 insertions(+), 24 deletions(-)
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/g
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue
allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/sunvdc.c | 47 --
1 file changed, 13 insertions(+), 34 deletions(-)
diff --git a/drivers/block/sunvdc.c b/drivers/block/
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue
allocation.
Signed-off-by: Christoph Hellwig
---
drivers/block/swim.c | 34 ++
1 file changed, 14 insertions(+), 20 deletions(-)
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index
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