search for: memory_hotplug

...cko at suse.com> Cc: Pankaj Gupta <pankaj.gupta.linux at gmail.com> Cc: Wei Yang <richard.weiyang at gmail.com> Cc: Baoquan He <bhe at redhat.com> Cc: Eric Biederman <ebiederm at xmission.com> Signed-off-by: David Hildenbrand <david at redhat.com> --- include/linux/memory_hotplug.h | 8 ++++++++ mm/memory_hotplug.c | 3 ++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 0151fb935c09..4ca418a731eb 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_hotplug.h @@...

...lt;mhocko at suse.com> Cc: Pavel Tatashin <pasha.tatashin at soleen.com> Cc: Wei Yang <richard.weiyang at gmail.com> Cc: Dan Williams <dan.j.williams at intel.com> Cc: Qian Cai <cai at lca.pw> Signed-off-by: David Hildenbrand <david at redhat.com> --- include/linux/memory_hotplug.h | 1 + mm/memory_hotplug.c | 35 ++++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 384ffb3d69ab..a1bf868aaeba 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_h...

...lt;mhocko at suse.com> Cc: Pavel Tatashin <pasha.tatashin at soleen.com> Cc: Wei Yang <richard.weiyang at gmail.com> Cc: Dan Williams <dan.j.williams at intel.com> Cc: Qian Cai <cai at lca.pw> Signed-off-by: David Hildenbrand <david at redhat.com> --- include/linux/memory_hotplug.h | 1 + mm/memory_hotplug.c | 37 ++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index f4d59155f3d4..a98aa16dbfa1 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_h...

...lt;mhocko at suse.com> Cc: Pavel Tatashin <pasha.tatashin at soleen.com> Cc: Wei Yang <richard.weiyang at gmail.com> Cc: Dan Williams <dan.j.williams at intel.com> Cc: Qian Cai <cai at lca.pw> Signed-off-by: David Hildenbrand <david at redhat.com> --- include/linux/memory_hotplug.h | 1 + mm/memory_hotplug.c | 37 ++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index f4d59155f3d4..a98aa16dbfa1 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_h...

...lt;mhocko at suse.com> Cc: Pavel Tatashin <pasha.tatashin at soleen.com> Cc: Wei Yang <richard.weiyang at gmail.com> Cc: Dan Williams <dan.j.williams at intel.com> Cc: Qian Cai <cai at lca.pw> Signed-off-by: David Hildenbrand <david at redhat.com> --- include/linux/memory_hotplug.h | 1 + mm/memory_hotplug.c | 37 ++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index 7dca9cd6076b..d641828e5596 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux/memory_h...

...gt; Cc: Wei Yang <richard.weiyang at gmail.com> > Cc: Dan Williams <dan.j.williams at intel.com> > Cc: Qian Cai <cai at lca.pw> > Signed-off-by: David Hildenbrand <david at redhat.com> didn't you lose Andrew Morton's ack here? > --- > include/linux/memory_hotplug.h | 1 + > mm/memory_hotplug.c | 37 ++++++++++++++++++++++++++++++++++ > 2 files changed, 38 insertions(+) I get: error: sha1 information is lacking or useless (mm/memory_hotplug.c). error: could not build fake ancestor which version is this against? Pls post patches on top of...

...gt; Cc: Wei Yang <richard.weiyang at gmail.com> > Cc: Dan Williams <dan.j.williams at intel.com> > Cc: Qian Cai <cai at lca.pw> > Signed-off-by: David Hildenbrand <david at redhat.com> didn't you lose Andrew Morton's ack here? > --- > include/linux/memory_hotplug.h | 1 + > mm/memory_hotplug.c | 37 ++++++++++++++++++++++++++++++++++ > 2 files changed, 38 insertions(+) I get: error: sha1 information is lacking or useless (mm/memory_hotplug.c). error: could not build fake ancestor which version is this against? Pls post patches on top of...

...Gupta <pankaj.gupta.linux at gmail.com> > Cc: Wei Yang <richard.weiyang at gmail.com> > Cc: Baoquan He <bhe at redhat.com> > Cc: Eric Biederman <ebiederm at xmission.com> > Signed-off-by: David Hildenbrand <david at redhat.com> > --- > include/linux/memory_hotplug.h | 8 ++++++++ > mm/memory_hotplug.c | 20 ++++++++++++++++---- > 2 files changed, 24 insertions(+), 4 deletions(-) > > diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h > index bf0e3edb8688..cc538584b39e 100644 > --- a/include/linux/memory...

...Gupta <pankaj.gupta.linux at gmail.com> > Cc: Wei Yang <richard.weiyang at gmail.com> > Cc: Baoquan He <bhe at redhat.com> > Cc: Eric Biederman <ebiederm at xmission.com> > Signed-off-by: David Hildenbrand <david at redhat.com> > --- > include/linux/memory_hotplug.h | 8 ++++++++ > mm/memory_hotplug.c | 20 ++++++++++++++++---- > 2 files changed, 24 insertions(+), 4 deletions(-) > > diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h > index bf0e3edb8688..cc538584b39e 100644 > --- a/include/linux/memory...

This is the follow up of [1]: [PATCH v1 0/3] mm/memory_hotplug: Make virtio-mem play nicely with kexec-tools I realized that this is not only helpful for virtio-mem, but also for dax/kmem - it's a fix for that use case (see patch #3) of persistent memory. Also, while testing, I discovered that kexec-tools will *not* add dax/kmem memory (anything not dir...

...cko at suse.com> Cc: Pankaj Gupta <pankaj.gupta.linux at gmail.com> Cc: Wei Yang <richard.weiyang at gmail.com> Cc: Baoquan He <bhe at redhat.com> Cc: Eric Biederman <ebiederm at xmission.com> Signed-off-by: David Hildenbrand <david at redhat.com> --- include/linux/memory_hotplug.h | 8 ++++++++ mm/memory_hotplug.c | 20 ++++++++++++++++---- 2 files changed, 24 insertions(+), 4 deletions(-) diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h index bf0e3edb8688..cc538584b39e 100644 --- a/include/linux/memory_hotplug.h +++ b/include/linux...

This series is based on [1]: [PATCH v2 00/10] virtio-mem: paravirtualized memory That will hopefull get picked up soon, rebased to -next. The following patches were reverted from -next [2]: [PATCH 0/3] kexec/memory_hotplug: Prevent removal and accidental use As discussed in that thread, they should be reverted from -next already. In theory, if people agree, we could take the first two patches via the -mm tree now and the last (virtio-mem) patch via MST's tree once picking up virtio-mem. No strong feelings. Mem...

...at gmail.com> > > Cc: Wei Yang <richard.weiyang at gmail.com> > > Cc: Baoquan He <bhe at redhat.com> > > Cc: Eric Biederman <ebiederm at xmission.com> > > Signed-off-by: David Hildenbrand <david at redhat.com> > > --- > > include/linux/memory_hotplug.h | 8 ++++++++ > > mm/memory_hotplug.c | 20 ++++++++++++++++---- > > 2 files changed, 24 insertions(+), 4 deletions(-) > > > > diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h > > index bf0e3edb8688..cc538584b39e 100644 > &g...

....9-rc4 v5.9-rc3 v5.9-rc2 v5.9-rc4] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/David-Hildenbrand/mm-memory_hotplug-selective-merging-of-system-ram-resources/20200910-171630 base: 7204eaa2c1f509066486f488c9dcb065d7484494 config: x86_64-randconfig-a016-20200909 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 0a5dc7effb191eff740e0e7ae7bd8e1f6bdb3ad9) reproduce (this is...

...unt limit does not allow for more than ~100GB of memory with a memory block size of 128MB on x86-64). Let's allow to selectively merge system ram resources by specifying a new flag for add_memory*(). Patch #5 contains a /proc/iomem example. Only tested with virtio-mem. v2 -> v3: - "mm/memory_hotplug: prepare passing flags to add_memory() and friends" -- Use proper __bitwise type for flags -- Use "MHP_NONE" for empty flags - Rebased to latest -next, added rb's v1 -> v2: - I had another look at v1 after vacation and didn't like it - it felt like a hack. So I want for...

...gt;>> Cc: Wei Yang <richard.weiyang at gmail.com> >>> Cc: Baoquan He <bhe at redhat.com> >>> Cc: Eric Biederman <ebiederm at xmission.com> >>> Signed-off-by: David Hildenbrand <david at redhat.com> >>> --- >>> include/linux/memory_hotplug.h | 8 ++++++++ >>> mm/memory_hotplug.c | 20 ++++++++++++++++---- >>> 2 files changed, 24 insertions(+), 4 deletions(-) >>> >>> diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h >>> index bf0e3edb8688..cc538584b39e...

...unt limit does not allow for more than ~100GB of memory with a memory block size of 128MB on x86-64). Let's allow to selectively merge system ram resources by specifying a new flag for add_memory*(). Patch #5 contains a /proc/iomem example. Only tested with virtio-mem. v3 -> v4: - "mm/memory_hotplug: guard more declarations by CONFIG_MEMORY_HOTPLUG" -- Fix configs without CONFIG_MEMORY_HOTPLUG with the new mhp_t type -- Did a buch of cross-compiles with different configs, hope there isn't anything I missed. v2 -> v3: - "mm/memory_hotplug: prepare passing flags to add_memor...

...unt limit does not allow for more than ~100GB of memory with a memory block size of 128MB on x86-64). Let's allow to selectively merge system ram resources by specifying a new flag for add_memory*(). Patch #5 contains a /proc/iomem example. Only tested with virtio-mem. v3 -> v4: - "mm/memory_hotplug: guard more declarations by CONFIG_MEMORY_HOTPLUG" -- Fix configs without CONFIG_MEMORY_HOTPLUG with the new mhp_t type -- Did a buch of cross-compiles with different configs, hope there isn't anything I missed. v2 -> v3: - "mm/memory_hotplug: prepare passing flags to add_memor...

...Gupta <pankaj.gupta.linux at gmail.com> > Cc: Wei Yang <richard.weiyang at gmail.com> > Cc: Baoquan He <bhe at redhat.com> > Cc: Eric Biederman <ebiederm at xmission.com> > Signed-off-by: David Hildenbrand <david at redhat.com> > --- > include/linux/memory_hotplug.h | 8 ++++++++ > mm/memory_hotplug.c | 3 ++- > 2 files changed, 10 insertions(+), 1 deletion(-) > > diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h > index 0151fb935c09..4ca418a731eb 100644 > --- a/include/linux/memory_hotplug.h > +++ b...

...Gupta <pankaj.gupta.linux at gmail.com> > Cc: Wei Yang <richard.weiyang at gmail.com> > Cc: Baoquan He <bhe at redhat.com> > Cc: Eric Biederman <ebiederm at xmission.com> > Signed-off-by: David Hildenbrand <david at redhat.com> > --- > include/linux/memory_hotplug.h | 8 ++++++++ > mm/memory_hotplug.c | 3 ++- > 2 files changed, 10 insertions(+), 1 deletion(-) > > diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h > index 0151fb935c09..4ca418a731eb 100644 > --- a/include/linux/memory_hotplug.h > +++ b...