ges but are written after the report function
returns will be captured by the hypervisor, and they will be added to the
next round of memory transfer.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
Cc: Michal Hocko
Cc: Michael S. Tsirkin
---
include/linux/mm.h | 6
mm/page_alloc.c|
() in chunks rather than page by page.
With this new feature, the above ballooning process takes ~492ms
resulting in an improvement of ~88%.
TODO: optimize stage 1) by allocating/freeing a chunk of pages
instead of a single page each time.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
Suggested
st_bit().
More possible optimizations to add in the future：
1) xb_set_bit_range: set a range of bits
2) when searching a bit, if the bit is not found in the slot, move on to
the next slot directly.
3) add Tags to help searching
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Cc: Matthew W
optimizations to add in the future：
1) xb_set_bit_range: set a range of bits
2) when searching a bit, if the bit is not found in the slot, move on to
the next slot directly.
3) add Tags to help searching
Signed-off-by: Wei Wang
Cc: Matthew Wilcox
Cc: Andrew Morton
Cc: Michal Hocko
Cc: Michael S. Tsirkin
to the
host.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Signed-off-by: Liang Li <liang.z...@intel.com>
Cc: Michael S. Tsirkin <m...@redhat.com>
Cc: Michal Hocko <mho...@kernel.org>
---
drivers/virtio/virtio_balloon.c | 249
to the
host.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
Cc: Michael S. Tsirkin
Cc: Michal Hocko
---
drivers/virtio/virtio_balloon.c | 249 +---
include/uapi/linux/virtio_balloon.h | 15 +++
2 files changed, 244 insertions(+), 20 deletions(-)
diff --git
on patch.
3) commit changes
4) patch re-org
Matthew Wilcox (2):
lib/xbitmap: Introduce xbitmap
radix tree test suite: add tests for xbitmap
Wei Wang (3):
virtio-balloon: VIRTIO_BALLOON_F_SG
mm: support reporting free page blocks
virtio-balloon: VIRTIO_BALLOON_F_CTRL_VQ
driv
on patch.
3) commit changes
4) patch re-org
Matthew Wilcox (2):
lib/xbitmap: Introduce xbitmap
radix tree test suite: add tests for xbitmap
Wei Wang (3):
virtio-balloon: VIRTIO_BALLOON_F_SG
mm: support reporting free page blocks
virtio-balloon: VIRTIO_BALLOON_F_CTRL_VQ
driv
On 09/29/2017 12:01 PM, Michael S. Tsirkin wrote:
On Fri, Sep 08, 2017 at 07:09:24PM +0800, Wei Wang wrote:
On 09/08/2017 11:36 AM, Michael S. Tsirkin wrote:
On Tue, Aug 29, 2017 at 11:09:18AM +0800, Wei Wang wrote:
On 08/29/2017 02:03 AM, Michael S. Tsirkin wrote:
On Mon, Aug 28, 2017 at 06
On 09/29/2017 12:01 PM, Michael S. Tsirkin wrote:
On Fri, Sep 08, 2017 at 07:09:24PM +0800, Wei Wang wrote:
On 09/08/2017 11:36 AM, Michael S. Tsirkin wrote:
On Tue, Aug 29, 2017 at 11:09:18AM +0800, Wei Wang wrote:
On 08/29/2017 02:03 AM, Michael S. Tsirkin wrote:
On Mon, Aug 28, 2017 at 06
On 09/27/2017 12:41 AM, Andi Kleen wrote:
1) vCPU context switching and guest side task switching are not identical.
That is, when the vCPU is scheduled out, the guest task on the vCPU may not
guest task lifetime has nothing to do with this. It's completely independent
of what you do here on
On 09/27/2017 12:41 AM, Andi Kleen wrote:
1) vCPU context switching and guest side task switching are not identical.
That is, when the vCPU is scheduled out, the guest task on the vCPU may not
guest task lifetime has nothing to do with this. It's completely independent
of what you do here on
On 09/25/2017 10:57 PM, Andi Kleen wrote:
+static void auto_switch_lbr_msrs(struct vcpu_vmx *vmx)
+{
+ int i;
+ struct perf_lbr_stack lbr_stack;
+
+ perf_get_lbr_stack(_stack);
+
+ add_atomic_switch_msr(vmx, MSR_LBR_SELECT, 0, 0);
+ add_atomic_switch_msr(vmx,
On 09/25/2017 10:57 PM, Andi Kleen wrote:
+static void auto_switch_lbr_msrs(struct vcpu_vmx *vmx)
+{
+ int i;
+ struct perf_lbr_stack lbr_stack;
+
+ perf_get_lbr_stack(_stack);
+
+ add_atomic_switch_msr(vmx, MSR_LBR_SELECT, 0, 0);
+ add_atomic_switch_msr(vmx,
On 09/25/2017 10:59 PM, Andi Kleen wrote:
On Mon, Sep 25, 2017 at 12:44:52PM +0800, Wei Wang wrote:
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e
On 09/25/2017 10:59 PM, Andi Kleen wrote:
On Mon, Sep 25, 2017 at 12:44:52PM +0800, Wei Wang wrote:
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e
On 09/25/2017 07:54 PM, Paolo Bonzini wrote:
On 25/09/2017 06:44, Wei Wang wrote:
+static void update_msr_autoload_count_max(void)
+{
+ u64 vmx_msr;
+ int n;
+
+ /*
+* According to the Intel SDM, if Bits 27:25 of MSR_IA32_VMX_MISC is
+* n, then (n + 1) * 512
On 09/25/2017 07:54 PM, Paolo Bonzini wrote:
On 25/09/2017 06:44, Wei Wang wrote:
+static void update_msr_autoload_count_max(void)
+{
+ u64 vmx_msr;
+ int n;
+
+ /*
+* According to the Intel SDM, if Bits 27:25 of MSR_IA32_VMX_MISC is
+* n, then (n + 1) * 512
On 09/25/2017 05:16 PM, Paolo Bonzini wrote:
On 25/09/2017 06:44, Wei Wang wrote:
Passthrough the LBR stack to the guest, and auto switch the stack MSRs
upon VMEntry and VMExit.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
This has to be enabled separately for each guest, because
On 09/25/2017 05:16 PM, Paolo Bonzini wrote:
On 25/09/2017 06:44, Wei Wang wrote:
Passthrough the LBR stack to the guest, and auto switch the stack MSRs
upon VMEntry and VMExit.
Signed-off-by: Wei Wang
This has to be enabled separately for each guest, because it may prevent
live migration
Passthrough the MSR_IA32_DEBUGCTLMSR to the guest, and take advantage of
the hardware VT-x feature to auto switch the msr upon VMExit and VMEntry.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
---
arch/x86/kvm/vmx.c | 13 -
1 file changed, 4 insertions(+), 9 deletions(-)
diff
. This can be calculated by
(MSR_IA32_VMX_MISC[27:25] + 1) * 512.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
---
arch/x86/kvm/vmx.c | 72 +++---
1 file changed, 63 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm
Passthrough the MSR_IA32_DEBUGCTLMSR to the guest, and take advantage of
the hardware VT-x feature to auto switch the msr upon VMExit and VMEntry.
Signed-off-by: Wei Wang
---
arch/x86/kvm/vmx.c | 13 -
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/vmx.c
. This can be calculated by
(MSR_IA32_VMX_MISC[27:25] + 1) * 512.
Signed-off-by: Wei Wang
---
arch/x86/kvm/vmx.c | 72 +++---
1 file changed, 63 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 0726ca7..8434fc8
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e. load and
saved) on VMExit and VMEntry.
Test:
Try "perf record -b ./test_program" on guest.
W
for the guest.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
---
arch/x86/events/intel/lbr.c | 23 +++
arch/x86/include/asm/perf_event.h | 14 ++
2 files changed, 37 insertions(+)
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 8
Passthrough the LBR stack to the guest, and auto switch the stack MSRs
upon VMEntry and VMExit.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
---
arch/x86/kvm/vmx.c | 50 ++
1 file changed, 50 insertions(+)
diff --git a/arch/x86/kvm/vmx.c
for the guest.
Signed-off-by: Wei Wang
---
arch/x86/events/intel/lbr.c | 23 +++
arch/x86/include/asm/perf_event.h | 14 ++
2 files changed, 37 insertions(+)
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 8a6bbac..ea547ec 100644
--- a/arch
This patch series enables the Last Branch Recording feature for the
guest. Instead of trapping each LBR stack MSR access, the MSRs are
passthroughed to the guest. Those MSRs are switched (i.e. load and
saved) on VMExit and VMEntry.
Test:
Try "perf record -b ./test_program" on guest.
W
Passthrough the LBR stack to the guest, and auto switch the stack MSRs
upon VMEntry and VMExit.
Signed-off-by: Wei Wang
---
arch/x86/kvm/vmx.c | 50 ++
1 file changed, 50 insertions(+)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index
On 09/11/2017 08:54 PM, Matthew Wilcox wrote:
On Mon, Aug 28, 2017 at 06:08:29PM +0800, Wei Wang wrote:
From: Matthew Wilcox <mawil...@microsoft.com>
The eXtensible Bitmap is a sparse bitmap representation which is
efficient for set bits which tend to cluster. It supports up to
'unsigne
On 09/11/2017 08:54 PM, Matthew Wilcox wrote:
On Mon, Aug 28, 2017 at 06:08:29PM +0800, Wei Wang wrote:
From: Matthew Wilcox
The eXtensible Bitmap is a sparse bitmap representation which is
efficient for set bits which tend to cluster. It supports up to
'unsigned long' worth of bits
On 09/08/2017 11:36 AM, Michael S. Tsirkin wrote:
On Tue, Aug 29, 2017 at 11:09:18AM +0800, Wei Wang wrote:
On 08/29/2017 02:03 AM, Michael S. Tsirkin wrote:
On Mon, Aug 28, 2017 at 06:08:31PM +0800, Wei Wang wrote:
Add a new feature, VIRTIO_BALLOON_F_SG, which enables the transfer
of balloon
On 09/08/2017 11:36 AM, Michael S. Tsirkin wrote:
On Tue, Aug 29, 2017 at 11:09:18AM +0800, Wei Wang wrote:
On 08/29/2017 02:03 AM, Michael S. Tsirkin wrote:
On Mon, Aug 28, 2017 at 06:08:31PM +0800, Wei Wang wrote:
Add a new feature, VIRTIO_BALLOON_F_SG, which enables the transfer
of balloon
On 08/28/2017 09:33 PM, Michal Hocko wrote:
On Mon 28-08-17 18:08:32, Wei Wang wrote:
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the calle
On 08/28/2017 09:33 PM, Michal Hocko wrote:
On Mon 28-08-17 18:08:32, Wei Wang wrote:
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the calle
On 08/29/2017 02:03 AM, Michael S. Tsirkin wrote:
On Mon, Aug 28, 2017 at 06:08:31PM +0800, Wei Wang wrote:
Add a new feature, VIRTIO_BALLOON_F_SG, which enables the transfer
of balloon (i.e. inflated/deflated) pages using scatter-gather lists
to the host.
The implementation of the previous
On 08/29/2017 02:03 AM, Michael S. Tsirkin wrote:
On Mon, Aug 28, 2017 at 06:08:31PM +0800, Wei Wang wrote:
Add a new feature, VIRTIO_BALLOON_F_SG, which enables the transfer
of balloon (i.e. inflated/deflated) pages using scatter-gather lists
to the host.
The implementation of the previous
st_bit().
Signed-off-by: Matthew Wilcox <mawil...@microsoft.com>
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Michal Hocko <mho...@kernel.org>
Cc: Michael S. Tsirkin <m...@redhat.com>
---
include/linux/radix-tree.h | 3
Wilcox
Signed-off-by: Wei Wang
Cc: Andrew Morton
Cc: Michal Hocko
Cc: Michael S. Tsirkin
---
include/linux/radix-tree.h | 3 +
include/linux/xbitmap.h| 61
lib/Makefile | 2 +-
lib/radix-tree.c | 22 +-
lib/xbitmap.c | 176
to the
host.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Signed-off-by: Liang Li <liang.z...@intel.com>
---
drivers/virtio/virtio_balloon.c | 247 +---
include/uapi/linux/virtio_balloon.h | 15 +++
2 files changed, 242 insertions(+), 20 deleti
to the
host.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
---
drivers/virtio/virtio_balloon.c | 247 +---
include/uapi/linux/virtio_balloon.h | 15 +++
2 files changed, 242 insertions(+), 20 deletions(-)
diff --git a/drivers/virtio/virtio_balloon.c b
ges but are written after the report function
returns will be captured by the hypervisor, and they will be added to the
next round of memory transfer.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Signed-off-by: Liang Li <liang.z...@intel.com>
Cc: Michal Hocko <mho...@kernel.org>
C
() in chunks rather than page by page.
With this new feature, the above ballooning process takes ~597ms
resulting in an improvement of ~86%.
TODO: optimize stage 1) by allocating/freeing a chunk of pages
instead of a single page each time.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Sign
ges but are written after the report function
returns will be captured by the hypervisor, and they will be added to the
next round of memory transfer.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
Cc: Michal Hocko
Cc: Michael S. Tsirkin
---
include/linux/mm.h | 5 +
mm/page_alloc.c|
() in chunks rather than page by page.
With this new feature, the above ballooning process takes ~597ms
resulting in an improvement of ~86%.
TODO: optimize stage 1) by allocating/freeing a chunk of pages
instead of a single page each time.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
Suggested
xb_find_next_bit() is used to find the next "1" or "0" bit in the
given range. xb_zero() is used to zero the given range of bits.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Matthew Wilcox <mawil...@m
xb_find_next_bit() is used to find the next "1" or "0" bit in the
given range. xb_zero() is used to zero the given range of bits.
Signed-off-by: Wei Wang
Cc: Andrew Morton
Cc: Matthew Wilcox
Cc: Michal Hocko
Cc: Michael S. Tsirkin
---
include/linux/xbitmap.h |
tead of two.
2) re-write the virtio-balloon implementation patch.
3) commit changes
4) patch re-org
Matthew Wilcox (1):
lib/xbitmap: Introduce xbitmap
Wei Wang (4):
lib/xbitmap: add xb_find_next_bit() and xb_zero()
virtio-balloon: VIRTIO_BALLOON_F_SG
mm: support reporting free page
tead of two.
2) re-write the virtio-balloon implementation patch.
3) commit changes
4) patch re-org
Matthew Wilcox (1):
lib/xbitmap: Introduce xbitmap
Wei Wang (4):
lib/xbitmap: add xb_find_next_bit() and xb_zero()
virtio-balloon: VIRTIO_BALLOON_F_SG
mm: support reporting free page
On 08/18/2017 09:46 PM, Michal Hocko wrote:
On Thu 17-08-17 11:26:55, Wei Wang wrote:
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the calle
On 08/18/2017 09:46 PM, Michal Hocko wrote:
On Thu 17-08-17 11:26:55, Wei Wang wrote:
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the calle
On 08/19/2017 02:10 AM, Michael S. Tsirkin wrote:
On Fri, Aug 18, 2017 at 04:36:06PM +0800, Wei Wang wrote:
On 08/18/2017 10:28 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Signed-off
On 08/19/2017 02:10 AM, Michael S. Tsirkin wrote:
On Fri, Aug 18, 2017 at 04:36:06PM +0800, Wei Wang wrote:
On 08/18/2017 10:28 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Signed-off
On 08/19/2017 02:26 AM, Michael S. Tsirkin wrote:
On Fri, Aug 18, 2017 at 04:41:41PM +0800, Wei Wang wrote:
On 08/18/2017 10:13 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Please add
On 08/19/2017 02:26 AM, Michael S. Tsirkin wrote:
On Fri, Aug 18, 2017 at 04:41:41PM +0800, Wei Wang wrote:
On 08/18/2017 10:13 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Please add
On 08/18/2017 10:13 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Please add some text here explaining the report_free_page_signal
thing.
I also really think we need some kind of ID
On 08/18/2017 10:13 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Please add some text here explaining the report_free_page_signal
thing.
I also really think we need some kind of ID
On 08/18/2017 10:28 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Signed-off-by: Liang Li <liang.z...@intel.com>
---
dr
On 08/18/2017 10:28 AM, Michael S. Tsirkin wrote:
On Thu, Aug 17, 2017 at 11:26:56AM +0800, Wei Wang wrote:
Add a new vq to report hints of guest free pages to the host.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
---
drivers/virtio/virtio_balloon.c | 167
On 08/18/2017 10:22 AM, Michael S. Tsirkin wrote:
+static void send_balloon_page_sg(struct virtio_balloon *vb,
+struct virtqueue *vq,
+void *addr,
+uint32_t size)
+{
+ unsigned int len;
+
On 08/18/2017 10:22 AM, Michael S. Tsirkin wrote:
+static void send_balloon_page_sg(struct virtio_balloon *vb,
+struct virtqueue *vq,
+void *addr,
+uint32_t size)
+{
+ unsigned int len;
+
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the caller's
responsibility to either detect or prevent the use of such pages.
Signed-off-by:
This patch adds support to walk through the free page blocks in the
system and report them via a callback function. Some page blocks may
leave the free list after zone->lock is released, so it is the caller's
responsibility to either detect or prevent the use of such pages.
Signed-off-by:
Add a new vq to report hints of guest free pages to the host.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Signed-off-by: Liang Li <liang.z...@intel.com>
---
drivers/virtio/virtio_balloon.c | 167 +++-
include/uapi/linux/virtio_balloon.h |
() in chunks rather than page by page.
With this new feature, the above ballooning process takes ~541ms
resulting in an improvement of ~87%.
TODO: optimize stage 1) by allocating/freeing a chunk of pages
instead of a single page each time.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Sign
Add a new vq to report hints of guest free pages to the host.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
---
drivers/virtio/virtio_balloon.c | 167 +++-
include/uapi/linux/virtio_balloon.h | 1 +
2 files changed, 147 insertions(+), 21 deletions
() in chunks rather than page by page.
With this new feature, the above ballooning process takes ~541ms
resulting in an improvement of ~87%.
TODO: optimize stage 1) by allocating/freeing a chunk of pages
instead of a single page each time.
Signed-off-by: Wei Wang
Signed-off-by: Liang Li
Suggested
xb_find_next_bit() is used to find the next "1" or "0" bit in the
given range. xb_zero() is used to zero the given range of bits.
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Matthew Wilcox <mawil...@m
st_bit().
Signed-off-by: Matthew Wilcox <mawil...@microsoft.com>
Signed-off-by: Wei Wang <wei.w.w...@intel.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Michal Hocko <mho...@kernel.org>
Cc: Michael S. Tsirkin <m...@redhat.com>
---
include/linux/radix-tree.h | 3
plementation patch.
3) commit changes
4) patch re-org
Matthew Wilcox (1):
lib/xbitmap: Introduce xbitmap
Wei Wang (4):
lib/xbitmap: add xb_find_next_bit() and xb_zero()
virtio-balloon: VIRTIO_BALLOON_F_SG
mm: support reporting free page blocks
virtio-balloon: VIRTIO_BALLOON_F_FREE_PAG
plementation patch.
3) commit changes
4) patch re-org
Matthew Wilcox (1):
lib/xbitmap: Introduce xbitmap
Wei Wang (4):
lib/xbitmap: add xb_find_next_bit() and xb_zero()
virtio-balloon: VIRTIO_BALLOON_F_SG
mm: support reporting free page blocks
virtio-balloon: VIRTIO_BALLOON_F_FREE_PAG
xb_find_next_bit() is used to find the next "1" or "0" bit in the
given range. xb_zero() is used to zero the given range of bits.
Signed-off-by: Wei Wang
Cc: Andrew Morton
Cc: Matthew Wilcox
Cc: Michal Hocko
Cc: Michael S. Tsirkin
---
include/linux/xbitmap.h |
Wilcox
Signed-off-by: Wei Wang
Cc: Andrew Morton
Cc: Michal Hocko
Cc: Michael S. Tsirkin
---
include/linux/radix-tree.h | 3 +
include/linux/xbitmap.h| 61
lib/Makefile | 2 +-
lib/radix-tree.c | 22 +-
lib/xbitmap.c | 176
On 08/16/2017 01:57 PM, Adam Tao wrote:
On Thu, Aug 03, 2017 at 02:38:14PM +0800, Wei Wang wrote:
This patch series enhances the existing virtio-balloon with the following
new features:
1) fast ballooning: transfer ballooned pages between the guest and host in
chunks using sgs, instead of one
On 08/16/2017 01:57 PM, Adam Tao wrote:
On Thu, Aug 03, 2017 at 02:38:14PM +0800, Wei Wang wrote:
This patch series enhances the existing virtio-balloon with the following
new features:
1) fast ballooning: transfer ballooned pages between the guest and host in
chunks using sgs, instead of one
t merged before
submitting my patch?
Thanks.
Wei
On Sun, Aug 13, 2017 at 9:24 AM, David Ahern <dsah...@gmail.com> wrote:
> On 8/12/17 1:42 PM, Wei Wang wrote:
>> Hi Ido,
>>
>>>> - if ((rt->dst.dev == dev || !dev) &&
>>>> + if ((rt->dst
rged before
submitting my patch?
Thanks.
Wei
On Sun, Aug 13, 2017 at 9:24 AM, David Ahern wrote:
> On 8/12/17 1:42 PM, Wei Wang wrote:
>> Hi Ido,
>>
>>>> - if ((rt->dst.dev == dev || !dev) &&
>>>> + if ((rt->dst.dev == dev || !dev
ei
On Sat, Aug 12, 2017 at 11:01 AM, Ido Schimmel <ido...@idosch.org> wrote:
> Hi Wei,
>
> On Fri, Aug 11, 2017 at 05:10:02PM -0700, Wei Wang wrote:
>> I think we have a potential fix for this issue.
>> Martin and I found that when addrconf_dst_alloc() creates a rt6, it
Wei
On Sat, Aug 12, 2017 at 11:01 AM, Ido Schimmel wrote:
> Hi Wei,
>
> On Fri, Aug 11, 2017 at 05:10:02PM -0700, Wei Wang wrote:
>> I think we have a potential fix for this issue.
>> Martin and I found that when addrconf_dst_alloc() creates a rt6, it is
>> possible t
On Fri, Aug 11, 2017 at 8:37 PM, David Ahern <dsah...@gmail.com> wrote:
> On 8/11/17 6:25 PM, Wei Wang wrote:
>> By "a patch to fix that" do you mean after your patch, for every rt6,
>> rt6->rt6i_idev will be the same as rt6->dst.dev?
>
> FIB entries sho
On Fri, Aug 11, 2017 at 8:37 PM, David Ahern wrote:
> On 8/11/17 6:25 PM, Wei Wang wrote:
>> By "a patch to fix that" do you mean after your patch, for every rt6,
>> rt6->rt6i_idev will be the same as rt6->dst.dev?
>
> FIB entries should have them the same
M, John Stultz <john.stu...@linaro.org> wrote:
> On Fri, Aug 11, 2017 at 5:31 PM, John Stultz <john.stu...@linaro.org> wrote:
>> On Fri, Aug 11, 2017 at 5:10 PM, Wei Wang <wei...@google.com> wrote:
>>>> If after Cong's fix, the issue still happens, could you hel
Aug 11, 2017 at 5:31 PM, John Stultz wrote:
>> On Fri, Aug 11, 2017 at 5:10 PM, Wei Wang wrote:
>>>> If after Cong's fix, the issue still happens, could you help try the
>>>> patch attached and collect all logs when you try the reproduce the
>>>&
On Fri, Aug 11, 2017 at 8:07 PM, John Stultz <john.stu...@linaro.org> wrote:
> On Fri, Aug 11, 2017 at 5:31 PM, John Stultz <john.stu...@linaro.org> wrote:
>> On Fri, Aug 11, 2017 at 5:10 PM, Wei Wang <wei...@google.com> wrote:
>>>> If after Cong's fix, the
On Fri, Aug 11, 2017 at 8:07 PM, John Stultz wrote:
> On Fri, Aug 11, 2017 at 5:31 PM, John Stultz wrote:
>> On Fri, Aug 11, 2017 at 5:10 PM, Wei Wang wrote:
>>>> If after Cong's fix, the issue still happens, could you help try the
>>>> patch attached
good so far.
>
Great. Thanks.
> Do you still want feedback on the previous changes?
If this patch is good, then I don't really need the previous feedback.
Thanks.
Wei
On Fri, Aug 11, 2017 at 5:31 PM, John Stultz <john.stu...@linaro.org> wrote:
> On Fri, Aug 11, 2017 at 5:10 PM
good so far.
>
Great. Thanks.
> Do you still want feedback on the previous changes?
If this patch is good, then I don't really need the previous feedback.
Thanks.
Wei
On Fri, Aug 11, 2017 at 5:31 PM, John Stultz wrote:
> On Fri, Aug 11, 2017 at 5:10 PM, Wei Wang wrote:
>>> If af
On Fri, Aug 11, 2017 at 5:19 PM, David Ahern <dsah...@gmail.com> wrote:
> On 8/11/17 6:10 PM, Wei Wang wrote:
>> I think we have a potential fix for this issue.
>> Martin and I found that when addrconf_dst_alloc() creates a rt6, it is
>> possible that rt6->dst.dev p
On Fri, Aug 11, 2017 at 5:19 PM, David Ahern wrote:
> On 8/11/17 6:10 PM, Wei Wang wrote:
>> I think we have a potential fix for this issue.
>> Martin and I found that when addrconf_dst_alloc() creates a rt6, it is
>> possible that rt6->dst.dev points to loopback device
if it fixes the
issue on your side before I submit an official patch.
Thanks very much for the help from everyone.
Wei
On Fri, Aug 11, 2017 at 10:25 AM, Wei Wang <wei...@google.com> wrote:
> On Fri, Aug 11, 2017 at 9:48 AM, Cong Wang <xiyou.wangc...@gmail.com> wrote:
>> Hi
if it fixes the
issue on your side before I submit an official patch.
Thanks very much for the help from everyone.
Wei
On Fri, Aug 11, 2017 at 10:25 AM, Wei Wang wrote:
> On Fri, Aug 11, 2017 at 9:48 AM, Cong Wang wrote:
>> Hi,
>>
>> On Thu, Aug 10, 2017 at 11:12 AM, Jo
On Fri, Aug 11, 2017 at 9:48 AM, Cong Wang <xiyou.wangc...@gmail.com> wrote:
> Hi,
>
> On Thu, Aug 10, 2017 at 11:12 AM, John Stultz <john.stu...@linaro.org> wrote:
>> On Wed, Aug 9, 2017 at 10:41 PM, Wei Wang <wei...@google.com> wrote:
>>> Hi John,
>&g
On Fri, Aug 11, 2017 at 9:48 AM, Cong Wang wrote:
> Hi,
>
> On Thu, Aug 10, 2017 at 11:12 AM, John Stultz wrote:
>> On Wed, Aug 9, 2017 at 10:41 PM, Wei Wang wrote:
>>> Hi John,
>>>
>>> Is it possible to try the attached patch?
>>
>> Thanks
On Thu, Aug 10, 2017 at 11:12 AM, John Stultz <john.stu...@linaro.org> wrote:
> On Wed, Aug 9, 2017 at 10:41 PM, Wei Wang <wei...@google.com> wrote:
>> Hi John,
>>
>> Is it possible to try the attached patch?
>
> Thanks so much for the quick turn aroun
On Thu, Aug 10, 2017 at 11:12 AM, John Stultz wrote:
> On Wed, Aug 9, 2017 at 10:41 PM, Wei Wang wrote:
>> Hi John,
>>
>> Is it possible to try the attached patch?
>
> Thanks so much for the quick turn around!
>
> So I dropped all the reverts you suggested, an
On 08/10/2017 03:05 PM, Michal Hocko wrote:
On Tue 08-08-17 14:34:25, Wei Wang wrote:
On 08/08/2017 02:12 PM, Wei Wang wrote:
On 08/03/2017 05:11 PM, Michal Hocko wrote:
On Thu 03-08-17 14:38:18, Wei Wang wrote:
This is just too ugly and wrong actually. Never provide struct page
pointers
On 08/10/2017 03:05 PM, Michal Hocko wrote:
On Tue 08-08-17 14:34:25, Wei Wang wrote:
On 08/08/2017 02:12 PM, Wei Wang wrote:
On 08/03/2017 05:11 PM, Michal Hocko wrote:
On Thu 03-08-17 14:38:18, Wei Wang wrote:
This is just too ugly and wrong actually. Never provide struct page
pointers
On 08/10/2017 05:36 AM, Andrew Morton wrote:
On Thu, 3 Aug 2017 14:38:15 +0800 Wei Wang <wei.w.w...@intel.com> wrote:
From: Matthew Wilcox <mawil...@microsoft.com>
The eXtensible Bitmap is a sparse bitmap representation which is
efficient for set bits which tend to cluster. It
On 08/10/2017 05:36 AM, Andrew Morton wrote:
On Thu, 3 Aug 2017 14:38:15 +0800 Wei Wang wrote:
From: Matthew Wilcox
The eXtensible Bitmap is a sparse bitmap representation which is
efficient for set bits which tend to cluster. It supports up to
'unsigned long' worth of bits
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