Jiri Slaby wrote:
On 03/12/2013 06:17 PM, Borislav Petkov wrote:
On Mon, Mar 11, 2013 at 09:25:37PM +0100, Borislav Petkov wrote:
Yeah, it is already upstream. And yeah, it did trigger with it.
$ git describe
v3.9-rc2-112-g7c6baa304b84
But it somehow doesn't trigger with that same kernel anym
|| C && CC && CCC
Modules' config options usually comes first in these blocks.
Signed-off-by: Konstantin Khlebnikov
Cc: Andrew Morton
Cc: Michal Marek
Cc: linux-kbu...@vger.kernel.org
---
scripts/kconfig/expr.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions
his method allows to implement optional dependencies without introducing new
kconfig symbol for each pair of connected kconfig options.
Signed-off-by: Konstantin Khlebnikov
Cc: Andrew Morton
Cc: Michal Marek
Cc: linux-kbu...@vger.kernel.org
---
Documentation/kbuild/kconfig-language.txt |6
As proof of concept for new approach in managing cross-module dependencies this
patch resolves hard depencency between CONFIG_E1000E and CONFIG_PTP_1588_CLOCK.
Signed-off-by: Konstantin Khlebnikov
Cc: Richard Cochran
---
drivers/net/ethernet/intel/Kconfig |2 +-
drivers/net
module-A is available.
Objects from module_b-m will be linked only if CONFIG_MODULE_B=m.
Signed-off-by: Konstantin Khlebnikov
Cc: Andrew Morton
Cc: Michal Marek
Cc: linux-kbu...@vger.kernel.org
---
Documentation/kbuild/makefiles.txt | 14 ++
scripts/Makefile.build | 16
After this patch function ptp_clock_index(struct ptp_clock *ptp)
returns -1 if ptp is NULL or CONFIG_PTP_1588_CLOCK disabled.
Signed-off-by: Konstantin Khlebnikov
Cc: Richard Cochran
---
drivers/net/ethernet/broadcom/tg3.c |5 +
drivers/net/ethernet/freescale/fec.c
Richard Cochran wrote:
On Thu, Mar 21, 2013 at 12:22:57PM +0400, Konstantin Khlebnikov wrote:
This patch adds new kind of dependencies between kconfig symbols,
and new kconfig keyword 'apply' for them.
'apply' works mostly like 'select', but it allows to disa
Rafael J. Wysocki wrote:
On Saturday, February 02, 2013 09:58:45 PM Rafael J. Wysocki wrote:
On Saturday, February 02, 2013 04:12:03 PM Konstantin Khlebnikov wrote:
Rafael J. Wysocki wrote:
On Tuesday, January 29, 2013 12:55:15 PM Rafael J. Wysocki wrote:
On Tuesday, January 29, 2013 11:04
This patch adds single WARN_ONCE() check for catching 'enable_cnt' imbalances.
Signed-off-by: Konstantin Khlebnikov
Cc: linux-...@vger.kernel.org
Cc: Bjorn Helgaas
Cc: Rafael J. Wysocki
---
drivers/pci/pci.c |3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/pci/pci.c
like custom 'enable_wakeup' sign.
Signed-off-by: Konstantin Khlebnikov
Cc: Rafael J. Wysocki
Cc: e1000-de...@lists.sourceforge.net
Cc: Jeff Kirsher
Cc: Bruce Allan
---
drivers/net/ethernet/intel/e1000e/netdev.c | 78 ++--
1 file changed, 18 insertions(+), 60
This patch fixes some annoying messages like 'Error reading PHY register' and
'Hardware Erorr' and saves several seconds on reboot.
Signed-off-by: Konstantin Khlebnikov
Cc: Rafael J. Wysocki
Cc: e1000-de...@lists.sourceforge.net
Cc: Jeff Kirsher
Cc: Bruce Allan
---
driver
n saved by ->runtime_suspend()
that means device alredy prepared for wakeup and probably no longer accessible.
Thus driver must either do all actions or leave all these tasks to PCI
subsystem.
Signed-off-by: Konstantin Khlebnikov
Cc: Rafael J. Wysocki
Cc: Bjorn Helgaas
Cc: linux-...@vger.
.
Signed-off-by: Konstantin Khlebnikov # add comment
Cc: linux-...@vger.kernel.org
Cc: Bjorn Helgaas
Cc: Rafael J. Wysocki
---
drivers/pci/pci-driver.c |4
1 file changed, 4 insertions(+)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index dc5bdce..f9aa311 100
em.
Probably we should leave here only warning and disable bus-mastering for each
driver individually in ->shutdown() callback.
Link: https://lkml.org/lkml/2012/6/6/278
Signed-off-by: Konstantin Khlebnikov
Cc: Rafael J. Wysocki
Cc: Bjorn Helgaas
Cc: Khalid Aziz
Cc: linux-...@vger.kernel.org
C
/147
---
Konstantin Khlebnikov (6):
e1000e: fix pci-device enable-counter balance
PCI: don't touch enable_cnt in pci_device_shutdown()
PCI: catch enable-counter underflows
e1000e: fix runtime power management transitions
PCI/PM: warn about incomplete actio
me PM support (rev. 4)") in v2.6.35
Signed-off-by: Konstantin Khlebnikov
Cc: Rafael J. Wysocki
Cc: e1000-de...@lists.sourceforge.net
Cc: Jeff Kirsher
Cc: Bruce Allan
---
drivers/net/ethernet/intel/e1000e/netdev.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ne
Hugh Dickins wrote:
On Sat, 2 Feb 2013, Konstantin Khlebnikov wrote:
Johannes Weiner wrote:
In shmem_find_get_pages_and_swap, use the faster radix tree iterator
construct from 78c1d78 "radix-tree: introduce bit-optimized iterator".
Signed-off-by: Johannes Weiner
Hmm, ACK. shmem_u
Rafael J. Wysocki wrote:
On Monday, February 04, 2013 03:56:12 PM Konstantin Khlebnikov wrote:
Documentation/power/pci.txt says:
| It is expected that the device driver's pm->runtime_suspend() callback will
| not attempt to prepare the device for signaling wakeup or to put it into a
| l
Rafael J. Wysocki wrote:
On Monday, January 28, 2013 04:05:33 PM Bjorn Helgaas wrote:
[+cc Rafael, author of patch you cited]
On Fri, Jan 18, 2013 at 4:42 AM, Konstantin Khlebnikov
wrote:
Bug was introduced in commit 23606cf5d1192c2b17912cb2ef6e62f9b11de133
("e1000e / PCI / PM: Add
Bjorn Helgaas wrote:
[+cc Rafael @sisk.pl]
On Mon, Jan 28, 2013 at 4:09 PM, Bjorn Helgaas wrote:
[+cc Rafael]
On Fri, Jan 18, 2013 at 4:42 AM, Konstantin Khlebnikov
wrote:
__e1000_shutdown() calls pci_disable_device() at the end, thus __e1000_resume()
should call pci_enable_device_mem
Rafael J. Wysocki wrote:
On Monday, January 28, 2013 04:17:42 PM Bjorn Helgaas wrote:
[+cc Rafael]
On Fri, Jan 18, 2013 at 4:42 AM, Konstantin Khlebnikov
wrote:
This patch effectively reverts commit 42eca2302146fed51335b95128e949ee6f54478f
("PCI: Don't touch card regs after runti
Rafael J. Wysocki wrote:
On Tuesday, January 29, 2013 10:32:14 AM Konstantin Khlebnikov wrote:
Rafael J. Wysocki wrote:
On Monday, January 28, 2013 04:05:33 PM Bjorn Helgaas wrote:
[+cc Rafael, author of patch you cited]
On Fri, Jan 18, 2013 at 4:42 AM, Konstantin Khlebnikov
wrote:
Bug
Johannes Weiner wrote:
In shmem_find_get_pages_and_swap, use the faster radix tree iterator
construct from 78c1d78 "radix-tree: introduce bit-optimized iterator".
Signed-off-by: Johannes Weiner
Hmm, ACK. shmem_unuse_inode() also can be redone in this way.
I did something similar year ago: http
Rafael J. Wysocki wrote:
On Tuesday, January 29, 2013 12:55:15 PM Rafael J. Wysocki wrote:
On Tuesday, January 29, 2013 11:04:57 AM Konstantin Khlebnikov wrote:
Rafael J. Wysocki wrote:
On Monday, January 28, 2013 04:17:42 PM Bjorn Helgaas wrote:
[+cc Rafael]
On Fri, Jan 18, 2013 at 4:42 AM
. For example schedule_delayed_work() available for non-GPL.
Signed-off-by: Konstantin Khlebnikov
Cc: Tejun Heo
Cc: sta...@vger.kernel.org # 3.7
---
kernel/workqueue.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index fbc6576..0
here some fixes for e1000e driver from:
https://lkml.org/lkml/2013/2/4/185
The rest patches from that patchset already committed.
---
Konstantin Khlebnikov (3):
e1000e: fix pci-device enable-counter balance
e1000e: fix runtime power management transitions
e1000e: fix accessing
me PM support (rev. 4)") in v2.6.35
Signed-off-by: Konstantin Khlebnikov
Acked-by: Rafael J. Wysocki
Cc: e1000-de...@lists.sourceforge.net
Cc: Jeff Kirsher
Cc: Bruce Allan
---
drivers/net/ethernet/intel/e1000e/netdev.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/d
like custom 'enable_wakeup' sign.
Signed-off-by: Konstantin Khlebnikov
Acked-by: Rafael J. Wysocki
Cc: e1000-de...@lists.sourceforge.net
Cc: Jeff Kirsher
Cc: Bruce Allan
---
drivers/net/ethernet/intel/e1000e/netdev.c | 78 ++--
1 file changed, 18 inserti
This patch fixes some annoying messages like 'Error reading PHY register' and
'Hardware Erorr' and saves several seconds on reboot.
Signed-off-by: Konstantin Khlebnikov
Acked-by: Rafael J. Wysocki
Cc: e1000-de...@lists.sourceforge.net
Cc: Jeff Kirsher
Cc: Bruce Allan
---
Waskiewicz Jr, Peter P wrote:
On 2/24/2013 9:19 PM, Konstantin Khlebnikov wrote:
This patch fixes some annoying messages like 'Error reading PHY register' and
'Hardware Erorr' and saves several seconds on reboot.
Any networking-related patches should also include ne
: Konstantin Khlebnikov
commit 4e0855dff094b0d56d6b5b271e0ce7851cc1e063 upstream.
This patch removes redundant and unbalanced pci_disable_device() from
__e1000_shutdown(). pci_clear_master() is enough, device can go into
suspended state with elevated enable_cnt.
Bug was introduced in commit
Konstantin Khlebnikov wrote:
Greg Kroah-Hartman wrote:
3.8-stable review patch. If anyone has any objections, please let me know.
Vivek Goyal reported about problem caused by this improper fix.
https://lkml.org/lkml/2013/3/12/529
(this patch also pending to 3.0-stable and 3.4-stable
Vivek Goyal wrote:
On Wed, Mar 13, 2013 at 11:46:29AM +0400, Konstantin Khlebnikov wrote:
[..]
Ok, some more observation.
- Problem seems to be in during shutdown path. Because older kernel 3.8
can kexec into newer kernel 3.9.rc1 but not vice-a-versa.
I did git bisecting and following
Vivek Goyal wrote:
On Wed, Mar 13, 2013 at 06:53:16PM +0400, Konstantin Khlebnikov wrote:
[..]
PCI: Don't try to disable Bus Master on disconnected PCI devices
From: Konstantin Khlebnikov
This is fix for commit 7897e6022761ace7377f0f784fca059da55f5d71 from v3.9-rc1
("PCI: Disable
uot;)
Unfortunately fixing one bug uncovers another:
->shutdown() callback might switch device to deep sleep state.
PCI config space no longer available after that.
Link: https://lkml.org/lkml/2013/3/12/529
Signed-off-by: Konstantin Khlebnikov
Reported-and-Tested-by: Vivek Goyal
Cc: Bjorn Helgaas
ers)
Hugh Dickins wrote:
Shaohua, Konstantin,
Sorry that it takes me so long to to reply on these swapin readahead
bounding threads, but I had to try some things out before jumping in,
and only found time to experiment last week.
On Thu, 6 Sep 2012, Konstantin Khlebnikov wrote:
This patch a
2012, Konstantin Khlebnikov wrote:
Hugh Dickins wrote:
If I boot with mem=900M (and 1G swap: either on hard disk sda, or
on Vertex II SSD sdb), and mmap anonymous 1000M (either MAP_PRIVATE,
or MAP_SHARED for a shmem object), and either cycle sequentially round
that making 5M touches (spaced a
This patchset kills some VM_* flags in vma->vm_flags,
as result there appears five free bits.
Changes since v2 [ https://lkml.org/lkml/2012/4/7/67 ]
* killing VM_EXECUTABLE combined back into single patch
* new (the biggest one) patch which kills VM_RESERVED
---
Konstantin Khlebnikov
lebni...@openvz.org: Clear pfn to paddr conversion]
Signed-off-by: Suresh Siddha
Signed-off-by: Konstantin Khlebnikov
Cc: Venkatesh Pallipadi
Cc: H. Peter Anvin
Cc: Nick Piggin
Cc: Ingo Molnar
---
arch/x86/mm/pat.c | 33 +++--
1 file changed, 19 insertions(+), 14 delet
ip of setting PAT specific vm_flag in the 'vma'.
[khlebni...@openvz.org: Clear checks in track_pfn_remap()]
Signed-off-by: Suresh Siddha
Signed-off-by: Konstantin Khlebnikov
Cc: Venkatesh Pallipadi
Cc: H. Peter Anvin
Cc: Nick Piggin
Cc: Ingo Molnar
---
arch/x86/mm/pat.c
Reset the VM_PAT flag as part of untrack_pfn_vma()]
Signed-off-by: Konstantin Khlebnikov
Signed-off-by: Suresh Siddha
Cc: Venkatesh Pallipadi
Cc: H. Peter Anvin
Cc: Nick Piggin
Cc: Ingo Molnar
---
arch/x86/mm/pat.c | 17 -
include/asm-generic/pgtabl
- VM_ARCH_1 - -
And voila! One completely free bit.
Signed-off-by: Konstantin Khlebnikov
---
include/linux/mm.h | 34 +-
mm/huge_memory.c |2 +-
mm/ksm.c |7 ++-
3 files changed, 28 insertions(+), 15 deletions
map() handler under mm->mmap_sem write-lock, so it able to change
vma->vm_flags. Caller must set VM_MIXEDMAP at mmap time if it wants to call
this function from other places, for example from page-fault handler.
Signed-off-by: Konstantin Khlebnikov
Cc: Peter Zijlstra
Cc: Nick Piggin
Cc: Car
his method and obtain nonlinear vma support.
Signed-off-by: Konstantin Khlebnikov
Cc: Alexander Viro
Cc: Nick Piggin
Cc: Ingo Molnar
---
drivers/staging/android/ashmem.c |1 -
fs/9p/vfs_file.c |1 +
fs/btrfs/file.c |2 +-
fs/ceph/add
Some security modules and oprofile still uses VM_EXECUTABLE for retrieving
task's executable file, after this patch they will use mm->exe_file directly.
mm->exe_file protected with mm->mmap_sem, so locking stays the same.
Signed-off-by: Konstantin Khlebnikov
Acked-by: Chris Metcalf
mappings
VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
Signed-off-by: Konstantin Khlebnikov
Cc: Jason Baron
Cc: Nick Piggin
Cc: Hugh Dickins
---
fs/binfmt_elf.c|2 +-
include/linux/mm.h |2 +-
mm/madvise.c |8 ++--
3 files changed, 8 insertions(+), 4
userspace directly,
it only reduces total_vm showed in proc.
Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.
remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.
Signed-off-by: Konstantin
.
We can try to remove this logic and keep mm->exe_file until final mmput().
mm->exe_file is still protected with mm->mmap_sem, because we want to change it
via new sys_prctl(PR_SET_MM_EXE_FILE). Also via this syscall task can change
its mm->exe_file and unpin mountpoint explicitly.
Si
one) patch which kills VM_RESERVED
---
Konstantin Khlebnikov (8):
mm, x86, pat: rework linear pfn-mmap tracking
mm: introduce arch-specific vma flag VM_ARCH_1
mm: kill vma flag VM_INSERTPAGE
mm: kill vma flag VM_CAN_NONLINEAR
mm: use mm->exe_file instead of first VM_EXEC
lebni...@openvz.org: Clear pfn to paddr conversion]
Signed-off-by: Suresh Siddha
Signed-off-by: Konstantin Khlebnikov
Cc: Venkatesh Pallipadi
Cc: H. Peter Anvin
Cc: Nick Piggin
Cc: Ingo Molnar
---
arch/x86/mm/pat.c | 33 +++--
1 file changed, 19 insertions(+), 14 delet
ip of setting PAT specific vm_flag in the 'vma'.
[khlebni...@openvz.org: Clear checks in track_pfn_remap()]
Signed-off-by: Suresh Siddha
Signed-off-by: Konstantin Khlebnikov
Cc: Venkatesh Pallipadi
Cc: H. Peter Anvin
Cc: Nick Piggin
Cc: Ingo Molnar
---
arch/x86/mm/pat.c
- VM_ARCH_1 - -
And voila! One completely free bit.
Signed-off-by: Konstantin Khlebnikov
---
include/linux/mm.h | 34 +-
mm/huge_memory.c |2 +-
mm/ksm.c |7 ++-
3 files changed, 28 insertions(+), 15 deletions
his method and obtain nonlinear vma support.
Signed-off-by: Konstantin Khlebnikov
Cc: Alexander Viro
Cc: Nick Piggin
Cc: Ingo Molnar
---
drivers/staging/android/ashmem.c |1 -
fs/9p/vfs_file.c |1 +
fs/btrfs/file.c |2 +-
fs/ceph/add
Some security modules and oprofile still uses VM_EXECUTABLE for retrieving
task's executable file, after this patch they will use mm->exe_file directly.
mm->exe_file protected with mm->mmap_sem, so locking stays the same.
Signed-off-by: Konstantin Khlebnikov
Acked-by: Chris Metcalf
.
We can try to remove this logic and keep mm->exe_file until final mmput().
mm->exe_file is still protected with mm->mmap_sem, because we want to change it
via new sys_prctl(PR_SET_MM_EXE_FILE). Also via this syscall task can change
its mm->exe_file and unpin mountpoint explicitly.
Si
userspace directly,
it only reduces total_vm showed in proc.
Thus VM_RESERVED can be replaced with VM_IO or pair VM_DONTEXPAND | VM_DONTDUMP.
remap_pfn_range() and io_remap_pfn_range() set VM_IO|VM_DONTEXPAND|VM_DONTDUMP.
remap_vmalloc_range() set VM_DONTEXPAND | VM_DONTDUMP.
Signed-off-by: Konstantin
mappings
VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP)
Signed-off-by: Konstantin Khlebnikov
Cc: Jason Baron
Cc: Nick Piggin
Cc: Hugh Dickins
---
fs/binfmt_elf.c|2 +-
include/linux/mm.h |2 +-
mm/madvise.c |8 ++--
3 files changed, 8 insertions(+), 4
map() handler under mm->mmap_sem write-lock, so it able to change
vma->vm_flags. Caller must set VM_MIXEDMAP at mmap time if it wants to call
this function from other places, for example from page-fault handler.
Signed-off-by: Konstantin Khlebnikov
Cc: Peter Zijlstra
Cc: Nick Piggin
Cc: Car
Reset the VM_PAT flag as part of untrack_pfn_vma()]
Signed-off-by: Konstantin Khlebnikov
Signed-off-by: Suresh Siddha
Cc: Venkatesh Pallipadi
Cc: H. Peter Anvin
Cc: Nick Piggin
Cc: Ingo Molnar
---
arch/x86/mm/pat.c | 17 -
include/asm-generic/pgtabl
test_nx.ko incompatible with x86 relative exception table,
which was added in commit 706276543b699d80f546e45f8b12574e7b18d952
also it conflicts with CONFIG_DEBUG_SET_MODULE_RONX=y, because it
wants to modify write-protected data.
--
To unsubscribe from this list: send the line "unsubscribe linux-
This adds missing rtnl_unlock()
Signed-off-by: Konstantin Khlebnikov
Cc: Jeff Kirsher
Cc: e1000-de...@lists.sourceforge.net
---
drivers/net/ethernet/intel/igb/igb_main.c |1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c
b/drivers/net/ethernet
work which releases these devices. Also this patch fixes calling
dev_close/unregister_netdevice without rtnl_lock from caif_ser_exit().
Signed-off-by: Konstantin Khlebnikov
Cc: Dmitry Tarnyagin
---
drivers/net/caif/caif_serial.c | 61 ++--
1 file changed, 39
enic_change_mtu_work() must call rtnl_unlock() on all exiting paths.
Signed-off-by: Konstantin Khlebnikov
Cc: Christian Benvenuti
Cc: Roopa Prabhu
Cc: Neel Patel
Cc: Nishank Trivedi
---
drivers/net/ethernet/cisco/enic/enic_main.c |2 ++
1 file changed, 2 insertions(+)
diff --git a
There is no backend and writeback, dirty pages accounting is disabled.
ClearPageDirty() more suits for this place.
Signed-off-by: Konstantin Khlebnikov
Cc: Nadia Yvette Chambers
---
fs/hugetlbfs/inode.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/hugetlbfs/inode.c
Dirty pages accounting always works with PAGE_CACHE_SIZE granularity.
Signed-off-by: Konstantin Khlebnikov
---
fs/buffer.c|2 +-
include/linux/page-flags.h |2 +-
mm/truncate.c |7 +++
3 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/fs
ak with ext3 data=journal").
Signed-off-by: Konstantin Khlebnikov
Cc: linux-...@vger.kernel.org
---
fs/nfs/write.c |5 -
1 file changed, 5 deletions(-)
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index a2c7c28..737981f 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1735,11 +17
ge_cache() and
__delete_from_page_cache() handle dirty pages themselves.
I have run xfstest on ext3 in mode data=journal several times. Everything works
fine, except testcase '068' which have triggered deadlock on fs-freeze.
This seems unrelated and probably it's never worked for
rns true
because this page is locked and all ptes are write-protected by previously
called clear_page_dirty_for_io(). Thus nobody can mark it dirty except current
task. This prevents multy-threaded scenarios of taks->nr_dirtied underflows.
Signed-off-by: Konstantin Khlebnikov
---
fs/btrfs/exten
_page() from truncate_huge_page()
b720923 nfs: remove redundant cancel_dirty_page() from nfs_wb_page_cancel()
4c21e52 mm: remove redundant dirty pages check from __delete_from_page_cache()
Signed-off-by: Konstantin Khlebnikov
Cc: cgro...@vger.kernel.org
Cc: de...@openvz.org
Cc: Michal Hocko
Cc: Sha Zh
ncel_dirty_page() from truncate_huge_page()
b720923 nfs: remove redundant cancel_dirty_page() from nfs_wb_page_cancel()
4c21e52 mm: remove redundant dirty pages check from __delete_from_page_cache()
Signed-off-by: Konstantin Khlebnikov
Cc: cgro...@vger.kernel.org
Cc: de...@openvz.org
Cc: Michal Hocko
C
Tejun Heo wrote:
Hello, Vivek.
On Mon, Jul 08, 2013 at 01:52:01PM -0400, Vivek Goyal wrote:
Again, a problem to be fixed in the stack rather than patching up from
up above. The right thing to do is to propagate pressure through bdi
properly and let whatever is backing the bdi generate appropri
Tejun Heo wrote:
Hello,
On Tue, Jul 09, 2013 at 12:28:15PM +0400, Konstantin Khlebnikov wrote:
Yep, blkio has plenty problems and flaws and I don't get how it's related
to vfs layer, dirty set control and non-disk or network backed filesystems.
Any problem can be fixed by intro
Tejun Heo wrote:
On Tue, Jul 09, 2013 at 06:16:05AM -0700, Tejun Heo wrote:
On Tue, Jul 09, 2013 at 05:15:14PM +0400, Konstantin Khlebnikov wrote:
blkio controls block devices. not filesystems or superblocks or bdi or
pagecache.
It's all about block layer and nothing more. Am I right
Tejun Heo wrote:
On Tue, Jul 09, 2013 at 05:43:10PM +0400, Konstantin Khlebnikov wrote:
My concept it cgroup which would control io operation on vfs layer
for all filesystems. It will account and manage IO operations. I've
found really lightweight technique for accounting and throttling
Theodore Ts'o wrote:
Another major problem with this concept is that it lumps all I/O's
into a single cgroup. So I/O's from pseudo filesystems (such as
reading from /sys/kernel/debug/tracing/trace_pipe), networked file
systems such as NFS, and I/O to various different block devices all
get count
Vivek Goyal wrote:
On Tue, Jul 09, 2013 at 06:35:54PM +0400, Konstantin Khlebnikov wrote:
[..]
I'm not interested in QoS or proportional control. Let schedulers do it.
I want just bandwidth control. I don't want to write a new scheduler
or extend some of existing one. I want implem
Vivek Goyal wrote:
On Tue, Jul 09, 2013 at 09:42:57PM +0400, Konstantin Khlebnikov wrote:
[..]
So what kind of priority inversion you are facing with blkcg and how would
you avoid it with your implementation?
I know that serialization can happen at filesystem level while trying
to commit
Sha Zhengju wrote:
Hi,
On Mon, Jul 8, 2013 at 5:59 PM, Konstantin Khlebnikov
wrote:
> This is proof of concept, just basic functionality for IO controller.
> This cgroup will control filesystem usage on vfs layer, it's main goal is
> bandwidth control. It's suppo
This patch fixes lack of license, otherwise x509_key_parser.ko taints kernel.
Signed-off-by: Konstantin Khlebnikov
---
crypto/asymmetric_keys/x509_public_key.c |3 +++
1 file changed, 3 insertions(+)
diff --git a/crypto/asymmetric_keys/x509_public_key.c
b/crypto/asymmetric_keys
This patch fixes lack of license, otherwise mpi.ko taints kernel.
Signed-off-by: Konstantin Khlebnikov
---
lib/mpi/mpiutil.c |3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
index 657979f..bf076d2 100644
--- a/lib/mpi/mpiutil.c
+++ b/lib/mpi
After commit 829199197a430dade2519d54f5545c4a094393b8 audit emiters will block
forever if userspace daemon cannot handle backlog. After the timeout waiting
loop turns into busy loop and runs until daemon dies or returns back to work.
This is minimal patch for that bug.
Signed-off-by: Konstantin
Sasha Levin wrote:
Hi all,
While fuzzing with trinity inside a KVM tools guest, running latest -next
kernel, I've
stumbled on the following:
[13600.008029] general protection fault: [#1] PREEMPT SMP DEBUG_PAGEALLOC
[13600.010235] Modules linked in:
[13600.010742] CPU: 30 PID: 26329 Comm:
Luiz Capitulino wrote:
I'm getting the following soft lockup:
CPU: 6 PID: 2278 Comm: killall5 Tainted: GF3.11.0-rc7+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
0099 88011fd83de8 815324df 2800
817d48f9 88011fd83e68
Luiz Capitulino wrote:
On Mon, 09 Sep 2013 18:32:13 +0400
Konstantin Khlebnikov wrote:
Luiz Capitulino wrote:
I'm getting the following soft lockup:
CPU: 6 PID: 2278 Comm: killall5 Tainted: GF3.11.0-rc7+ #1
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
000
Luiz Capitulino wrote:
On Mon, 09 Sep 2013 19:19:14 +0400
Konstantin Khlebnikov wrote:
Luiz Capitulino wrote:
On Mon, 09 Sep 2013 18:32:13 +0400
Konstantin Khlebnikov wrote:
Luiz Capitulino wrote:
I'm getting the following soft lockup:
CPU: 6 PID: 2278 Comm: killall5 Tainte
This patch removes erroneous call of shmem_unacct_size() from error path.
Shmem inode will release that memory reservation in shmem_evict_inode().
So, if following call of alloc_file fails we'll free reservation twice.
Signed-off-by: Konstantin Khlebnikov
---
mm/shmem.c |8
1
r() during truncating.
Signed-off-by: Konstantin Khlebnikov
---
mm/shmem.c | 17 +
1 file changed, 17 insertions(+)
diff --git a/mm/shmem.c b/mm/shmem.c
index ff08920..a15c8dd 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -148,6 +148,19 @@ static inline void shmem_unacct_size(unsigned
This adds debug for vm_committed_as under CONFIG_DEBUG_VM=y
Signed-off-by: Konstantin Khlebnikov
---
mm/mmap.c |6 ++
1 file changed, 6 insertions(+)
diff --git a/mm/mmap.c b/mm/mmap.c
index 9d54851..2c7e6aa 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -131,6 +131,12 @@ int
/linux-mm/msg41128.html
mine version uses system wide state rather than per-VMA counters.
Signed-off-by: Konstantin Khlebnikov
Cc: Shaohua Li
Cc: Rik van Riel
Cc: Minchan Kim
---
include/linux/page-flags.h |1 +
mm/swap_state.c| 42 +-
2
Hugh Dickins wrote:
On Thu, 4 Oct 2012, Konstantin Khlebnikov wrote:
Here results of my test. Workload isn't very realistic, but at least it
threaded: compiling linux-3.6 with defconfig in 16 threads on tmpfs,
512mb ram, dualcore cpu, ordinary hard disk. (test script in attachment)
av
Konstantin Khlebnikov wrote:
Seems like it's unrelated to e1000e driver itself, because I tried to
revert all it's changes down to 3.6 one by one and it does not help.
Looks like regression somewhere in pci-bus irq or power-management.
because I see underflow of counter pci_dev-&
Konstantin Khlebnikov wrote:
Konstantin Khlebnikov wrote:
Seems like it's unrelated to e1000e driver itself, because I tried to
revert all it's changes down to 3.6 one by one and it does not help.
Ouch, 3.6 also affected, seems like I was more lucky at that time and
bug never showed
without special hardware,
but such bugs blocks mine automatic testing for allmodconfig kernels.
Signed-off-by: Konstantin Khlebnikov
Cc: Wim Van Sebroeck
Cc: linux-watch...@vger.kernel.org
Cc: Alan Cox
---
by default driver uses 10th irq, on my machine it's free:
root@buzz:~#
Hugh Dickins wrote:
On Fri, 14 Dec 2012, Konstantin Khlebnikov wrote:
Content of non-uptodate pages completely random, we cannot expose them into
userspace. This leads to information leak and will crash userspace for sure.
Good find, yes, it's very wrong as is. But, sorry, I don't
Konstantin Khlebnikov wrote:
"eurotechwdt" hasn't any PCI-ID or DMI checks, thus is can be loaded on any
hardware. On my PC this leads to immediate reboot, because driver got irq right
after registering irq handler. This patch rejects interrupts until device
activation. There is n
Andrew Morton wrote:
On Mon, 17 Dec 2012 20:45:13 -0800 (PST)
Hugh Dickins wrote:
On Fri, 14 Dec 2012, Konstantin Khlebnikov wrote:
This bio pool guarantees reclaiming progress for anonymous pages.
All avaliable bio in fs_bio_set may be borrowed by writeback which may
never ends, because
rror: not a function
Signed-off-by: Tushar Behera
Thanks.
Signed-off-by: Konstantin Khlebnikov
---
include/linux/bug.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/bug.h b/include/linux/bug.h
index aaac4bb..b1cf40d 100644
--- a/include/linux/bug.h
+++ b/in
Jiri Slaby wrote:
On 04/15/2013 05:29 PM, Jiri Slaby wrote:
On 03/29/2013 07:04 PM, Allan, Bruce W wrote:
-Original Message-
From: Jiri Slaby [mailto:jirisl...@gmail.com] On Behalf Of Jiri Slaby
Sent: Tuesday, March 19, 2013 5:23 AM
To: Konstantin Khlebnikov
Cc: Borislav Petkov
ing() fixes this bug.
References: https://bugs.freedesktop.org/show_bug.cgi?id=54089
Signed-off-by: Konstantin Khlebnikov
---
drivers/gpu/drm/i915/intel_pm.c |4
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index aa01128..
Daniel Vetter wrote:
On Sun, Jul 14, 2013 at 6:30 PM, Konstantin Khlebnikov
wrote:
This patch fixes regression in power consumtion of sandy bridge gpu, which
exists since v3.6 Sometimes after resuming from s2ram gpu starts thinking that
it's extremely busy. After that it never reache
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