The 'kao' entry has been added to vendor-prefixes.txt to indicate
products from Kaohsiung Opto-Electronics Inc.
Signed-off-by: Lukasz Majewski
---
Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/vendor-pr
On 4/12/2018 10:06 AM, Bjorn Helgaas wrote:
> [+cc Alex because of his interest in device reset]
>
> For context, here's the part of the patch we're discussing:
>
static void dpc_work(struct work_struct *work)
{
struct dpc_dev *dpc = container_of(work, struct dpc_dev, wor
On 21/02/2018 18:47, KarimAllah Ahmed wrote:
> ... since using kvm_vcpu_gpa_to_page() and kmap() will only work for guest
> memory that has a "struct page".
>
> The life-cycle of the mapping also changes to avoid doing map and unmap on
> every single exit (which becomes very expesive once we use m
> @@ -2097,6 +2098,25 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
> (void)lan78xx_set_eee(dev->net, &edata);
> }
>
> + if (!of_property_read_u32_array(dev->udev->dev.of_node,
> + "microchip,led-modes",
> +
On Tue, Apr 10, 2018 at 12:27:04PM +0300, Kirill A. Shutemov wrote:
> Some features (Intel MKTME, AMD SME) reduce number of effectively
> available physical address bits. We adjust x86_phys_bits accordingly.
>
> If get_cpu_cap() got called more than one time we lose this adjustement.
>
> That's e
This commit adds support for KOE's 5.7" display.
Signed-off-by: Lukasz Majewski
---
.../bindings/display/panel/koe,tx14d24vm1bpa.txt | 42 ++
drivers/gpu/drm/panel/panel-simple.c | 26 ++
2 files changed, 68 insertions(+)
create mode 100644
Docum
* Keerthy [180412 03:56]:
> From: Russ Dill
> --- a/arch/arm/mach-omap2/powerdomain.c
> +++ b/arch/arm/mach-omap2/powerdomain.c
> @@ -1199,3 +1199,63 @@ bool pwrdm_can_ever_lose_context(struct powerdomain
> *pwrdm)
>
> return 0;
> }
> +
> +/**
> + * pwrdm_save_context - save powerdomain
On 21/02/2018 18:47, KarimAllah Ahmed wrote:
> +
> + if (kvm_vcpu_map(vcpu,
> gpa_to_gfn(vmcs12->virtual_apic_page_addr), map))
> + vmcs_write64(VIRTUAL_APIC_PAGE_ADDR,
> gfn_to_gpa(map->pfn));
This should in principle be pfn_to_hpa. However, pfn_to_hpa is unused
On Thu, Apr 12, 2018 at 10:34:37AM -0400, Sinan Kaya wrote:
> On 4/12/2018 10:06 AM, Bjorn Helgaas wrote:
> >
> > I think the scenario you are describing is two systems that are
> > identical except that in the first, the endpoint is below a hotplug
> > bridge, while in the second, it's below a no
* Keerthy [180412 03:56]:
> From: Dave Gerlach
>
> Commit 2dc983c565e0 ("gpio/omap: cleanup prepare_for_idle and
> resume_after_idle") introduces omap2_gpio_prepare_for_idle and
> omap2_gpio_resume_after_idle to properly configure gpios that are used
> as wake sources. When entering off mode, om
On 21/02/2018 18:47, KarimAllah Ahmed wrote:
> ... since using kvm_vcpu_gpa_to_page() and kmap() will only work for guest
> memory that has a "struct page".
>
> The life-cycle of the mapping also changes to avoid doing map and unmap on
> every single exit (which becomes very expesive once we use m
On Thu, Apr 12, 2018 at 01:52:17PM +0200, Michal Hocko wrote:
> On Thu 12-04-18 08:52:52, Vlastimil Babka wrote:
> > On 04/11/2018 03:56 PM, Roman Gushchin wrote:
> > > On Wed, Apr 11, 2018 at 03:16:08PM +0200, Vlastimil Babka wrote:
> [...]
> > >> With that in mind, can we at least for now put the
In a situation when the reference count of the drm connector is greater than 1,
the unbind function should not invoke drm_connector_cleanup as this will lead
to an inconsistent state where the drm_crtc_state->connector_mask still has
a bitmask referring to the stale connector. Later, when drm drive
On Thu, Mar 29, 2018 at 08:21:54PM +0800, Peng Fan wrote:
> So add check here. When the driver pointer is NULL, return -EIO.
We should be providing a name if the file is there so rather than
returning an error we should provide something in the file so we should
either suppress creation of the fi
Hi Joe,
> On Wed, 2018-04-11 at 16:09 +0200, Lukasz Majewski wrote:
> > From: Sascha Hauer
> >
> > The mc34708 has an improved adc. The older variants will always
> > convert a fixed order of channels. The mc34708 can do up to eight
> > conversions in arbitrary channel order. Currently this exte
On Wed, 11 Apr 2018 09:01:01 -0700
Joe Perches wrote:
> On Wed, 2018-04-11 at 16:13 +0200, Lukasz Majewski wrote:
> > From: Sascha Hauer
> >
> > The mc34708 has a different bit to enable pen detection. This
> > adds the driver data and devtype necessary to probe the device
> > and to distinguis
On Thu 12-04-18 15:38:33, Roman Gushchin wrote:
> On Thu, Apr 12, 2018 at 01:52:17PM +0200, Michal Hocko wrote:
> > On Thu 12-04-18 08:52:52, Vlastimil Babka wrote:
> > > On 04/11/2018 03:56 PM, Roman Gushchin wrote:
> > > > On Wed, Apr 11, 2018 at 03:16:08PM +0200, Vlastimil Babka wrote:
> > [...]
The patch
ASoC: fsl_esai: Fix divisor calculation failure at lower ratio
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 h
The patch
ASoC: Intel: atom: fix ACPI/PCI Kconfig
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus
The patch
ASoC: rsnd: mark PM functions __maybe_unused
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to
On Thu, Apr 12, 2018 at 01:08:51AM +0200, Paul Kocialkowski wrote:
> > > + backlight: backlight {
> > > + compatible = "pwm-backlight";
> > > + pinctrl-names = "default";
> > > + pinctrl-0 = <&backlight_enable_pin>;
> >
> > You don't need any of the pinctrl nodes for the GP
In case of memcg_online_kmem() fail, memcg_cgroup::id remains hashed
in mem_cgroup_idr even after memcg memory is freed. This leads to leak
of ID in mem_cgroup_idr.
This patch adds removing into mem_cgroup_css_alloc(), which fixes
the problem. For better readability, it adds generic helper, which
Add a few livepatch modules and simple target modules that the included
regression suite can run tests against.
Signed-off-by: Joe Lawrence
---
Documentation/livepatch/callbacks.txt | 487 -
lib/Kconfig.debug | 12 +
lib/Makefile
Tests run on top of Petr's v11 atomic replace feature and v2 of the shadow
variable enhancement patchsets:
[PATCH 0/8] livepatch: Atomic replace feature
https://lkml.kernel.org/r/20180323120028.31451-1-pmla...@suse.com
[PATCH v2 0/2] livepatch: Allocate and free shadow variables more safely
On Wed, Apr 11, 2018 at 10:16:39PM +0800, Icenowy Zheng wrote:
> From: Chen-Yu Tsai
>
> On the Allwinner R40 SoC, the "GMAC clock" register is in the CCU
> address space; on the A64 SoC this register is in the SRAM controller
> address space, and with a different offset.
>
> To access the regist
On Thu, Apr 12, 2018 at 08:52:52AM +0200, Vlastimil Babka wrote:
> On 04/11/2018 03:56 PM, Roman Gushchin wrote:
> > On Wed, Apr 11, 2018 at 03:16:08PM +0200, Vlastimil Babka wrote:
> >> [+CC linux-api]
> >>
> >> On 03/05/2018 02:37 PM, Roman Gushchin wrote:
> >>> This patch introduces a concept of
From: Colin Ian King
In the case where the call to dev_alloc_name fails the current exit
path is via err_free_netdev and this calls free_netdev on a null priv
pointer, hence causing a null pointer dereference. Fix this by instead
exiting via err_release_irq.
Detected by CoverityScan, CID#146784
Hi,
On Wed, Apr 11, 2018 at 10:16:41PM +0800, Icenowy Zheng wrote:
> Allwinner A64 has a SRAM controller, and in the device tree currently
> we have a syscon node to enable EMAC driver to access the EMAC clock
> register. As SRAM controller driver can now export regmap for this
> register, replace
On 21/02/2018 18:47, KarimAllah Ahmed wrote:
> For the most part, KVM can handle guest memory that does not have a struct
> page (i.e. not directly managed by the kernel). However, There are a few
> places
> in the code, specially in the nested code, that does not support that.
>
> Patch 1, 2, an
Hi Mike,
I haven't tested the patch with wireshark until now. My system also
hangs shortly after it starts. I'm pretty sure I hit workqueues in my
earlier tests via the block driver, but it's clearly not whatever
wireshark is using. I'll look at it and try to post a fix. CCing the
list to avo
On Thu, Apr 12, 2018 at 08:39:54AM -0600, Keith Busch wrote:
> On Thu, Apr 12, 2018 at 10:34:37AM -0400, Sinan Kaya wrote:
> > On 4/12/2018 10:06 AM, Bjorn Helgaas wrote:
> > >
> > > I think the scenario you are describing is two systems that are
> > > identical except that in the first, the endpo
* H. Nikolaus Schaller [180411 07:05]:
> > Am 10.04.2018 um 22:56 schrieb Ladislav Michl :
> > Well, that's a shame... However, this code is in production for several
> > months now,
>
> Well, we could have tested earlier release-candidates...
I've found it's way easier to test Linux next on reg
On 21/02/2018 18:47, KarimAllah Ahmed wrote:
> + dst = (gpa_t)(((u64 *)vmcs12->pml_address) +
> vmcs12->guest_pml_index);
This is not a pointer, since it's in the guest. Please use
dst = vmcs12->pml_address + sizeof(u64) * vmcs12->guest_pml_index;
(It may also make sense to use k
Some of the mport_dma_req structure members were initialized late
inside the do_dma_request() function, just before submitting the
request to the dma engine. But we have some error branches before
that. In case of such an error, the code would return on the error
path and trigger the calling of dma
On Thu, Apr 12, 2018 at 11:39:42AM +0200, Dmitry Vyukov wrote:
> On Wed, Apr 11, 2018 at 9:36 PM, Paul E. McKenney
> wrote:
> >> >> >> >> wrote:
> >> >> >> >> >> >> >> >>
> >> >> >> >> >> >> >> >> > Hello,
> >> >> >> >> >> >> >> >> >
> >> >> >> >> >> >> >> >> > syzbot hit the following crash on u
Implement stacked fiemap().
Need to split inode operations for regular file (which has fiemap) and
special file (which doesn't have fiemap).
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/inode.c | 29 -
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/f
This reverts commit f3fbbb079263bd29ae592478de6808db7e708267.
Overlayfs now works correctly without adding hacks to fsnotify.
Signed-off-by: Miklos Szeredi
---
include/linux/fsnotify.h | 14 +-
1 file changed, 5 insertions(+), 9 deletions(-)
diff --git a/include/linux/fsnotify.h b/
This partially reverts commit c568d68341be7030f5647def68851e469b21ca11.
Overlayfs files will now automatically get the correct locks, no need to
hack overlay support in VFS.
It is a partial revert, because it leaves the locks_inode() calls in place
and defines locks_inode() to file_inode(). We c
We can now drop description of the ro/rw inconsistency from the
documentation.
Also clarify, that now fully standard compliant behavior can be enabled
with kernel/module/mount options.
Signed-off-by: Miklos Szeredi
---
Documentation/filesystems/overlayfs.txt | 64 ++-
On 12/04/18 17:06, Ioan Nicu wrote:
> Some of the mport_dma_req structure members were initialized late
> inside the do_dma_request() function, just before submitting the
> request to the dma engine. But we have some error branches before
> that. In case of such an error, the code would return on t
The only remaining user of d_real() is file_dentry().
Simplify code related to ->d_real() by:
- remove dead code from overlayfs implementation
- remove the open_flags argument
- expand d_real() helper into file_dentry()
- remove d_real() helper, since there are no callers and makes no sense t
On 2018-04-11 16:38, Bartosz Golaszewski wrote:
> This is a follow-up to the big series merged for 4.17. The patches
> contain some bits and pieces that were missing in the last submission
> or depend on some new features merged this merge window.
>
> v1 -> v2:
> - dropped patch 1/4 because id_tab
This reverts commit 954c736f865d6c0c68ae4263a2f3502ee7c447a3.
Overlayfs no longer relies on the vfs for checking writability of files.
Signed-off-by: Miklos Szeredi
---
fs/namespace.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/namespace.c b/fs/namespace.c
index 9d
This reverts commit 7b1742eb06ead6d02a6cf3c44587088e5392d1aa.
No user of d_real_inode() remains, so it can be removed.
Signed-off-by: Miklos Szeredi
---
include/linux/dcache.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/include/linux/dcache.h b/include/linux/dcache.
This reverts commit 598e3c8f72f5b77c84d2cb26cfd936ffb3cfdbaa.
Overlayfs no longer relies on the vfs correct atime handling.
Signed-off-by: Miklos Szeredi
---
fs/inode.c | 33 ++---
fs/internal.h | 7 ---
fs/namei.c | 2 +-
include/linux/fs.
This reverts commit a118084432d642eeccb961c7c8cc61525a941fcb.
No user of d_real_inode() remains, so it can be removed.
Signed-off-by: Miklos Szeredi
---
include/linux/dcache.h | 12
1 file changed, 12 deletions(-)
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index
This reverts commit 4d0c5ba2ff79ef9f5188998b29fd28fcb05f3667.
We now get write access on both overlay and underlying layers so this patch
is no longer needed for correct operation.
Signed-off-by: Miklos Szeredi
---
fs/locks.c | 3 +--
fs/open.c | 15 ++-
2 files changed, 3 inserti
Hi James,
Thanks for the comments.
2018-04-10 22:15 GMT+08:00, James Morse :
> Hi Dongjiu Geng,
>
> On 09/04/18 22:36, Dongjiu Geng wrote:
>> This new IOCTL exports user-invisible states related to SError.
>> Together with appropriate user space changes, it can inject
>> SError with specified sy
This reverts commit 495e642939114478a5237a7d91661ba93b76f15a.
No user of "flags" argument of d_real() remain.
Signed-off-by: Miklos Szeredi
---
Documentation/filesystems/Locking | 2 +-
Documentation/filesystems/vfs.txt | 2 +-
fs/open.c | 2 +-
fs/overlayfs/super.c
When the TSC MSR is captured while an L2 guest is running then restored,
the 'tsc_offset' ends up capturing the L02 TSC_OFFSET instead of the L01
TSC_OFFSET. So ensure that this is compensated for when storing the value.
Cc: Jim Mattson
Cc: Paolo Bonzini
Cc: Radim Krčmář
Cc: k...@vger.kernel.or
于 2018年4月12日 GMT+08:00 下午10:56:28, Maxime Ripard 写到:
>On Wed, Apr 11, 2018 at 10:16:39PM +0800, Icenowy Zheng wrote:
>> From: Chen-Yu Tsai
>>
>> On the Allwinner R40 SoC, the "GMAC clock" register is in the CCU
>> address space; on the A64 SoC this register is in the SRAM controller
>> address
This reverts commit cd91304e7190b4c4802f8e413ab2214b233e0260.
Overlayfs no longer relies on the vfs correct atime handling.
Signed-off-by: Miklos Szeredi
---
fs/inode.c | 21 -
fs/overlayfs/super.c | 3 ---
include/linux/dcache.h | 3 ---
3 files changed, 4 i
Hi Steve,
Here are a few patches that should be applied on top of the
'Inter-event (e.g. latency) support v9' patchset.
The first fixes another problem I noticed when printing flags.
The rest implement the tracing/events/error_log suggested by Masami,
and update the inter-event code to use it (a
Linus,
Please pull the kgdb tree.
Summary of changes:
* Fix 2032 time access issues and new compiler warnings
* minor regression test cleanup
* formatting fixes for end user use of kdb
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb.git
tags/for_linus-4.16
Thanks,
Jason.
-
Using coreutils' pr, a nicer table is printed out with the
results.
Signed-off-by: Daniel Díaz
---
tools/testing/selftests/intel_pstate/run.sh | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/intel_pstate/run.sh
b/tools/testing/selfte
From: Jim Mattson
For nested virtualization L0 KVM is managing a bit of state for L2 guests,
this state can not be captured through the currently available IOCTLs. In
fact the state captured through all of these IOCTLs is usually a mix of L1
and L2 state. It is also dependent on whether the L2 gu
Replace hist_err() and hist_err_event() with event_log_err() from the
new trace event error_log mechanism.
Also add a couple related helper functions and remove most of the old
hist_err()-related code.
With this change, users no longer read the hist files for hist trigger
error information, but i
From: Paolo Pisati
This patch adds support to the FPGA manager for programming
MachXO2 device’s internal flash memory, via slave SPI.
Signed-off-by: Paolo Pisati
[at...@kernel.org: use existing FPGA mgr API]
Signed-off-by: Alan Tull
---
drivers/fpga/Kconfig | 7 +
drivers/fpga/Makefil
>> I am still not happy with this patch.
>>
>> - You do not explain at all the dependency on commit 0c195567a8f6 and
>>you should because that's fundamental, if that patch is not present
>>this revert breaks the kernel as per previous discussions[1].
>> - You are
Hist trigger errors are now sent to tracing/events/error_log rather
than the individual event hist files - have the testcase reflect that.
Signed-off-by: Tom Zanussi
---
.../ftrace/test.d/trigger/inter-event/trigger-extended-error-support.tc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
From: Paolo Pisati
Add dt binding documentation details for Lattice MachXO2 FPGA configuration
over Slave SPI interface.
Signed-off-by: Paolo Pisati
Acked-by: Rob Herring
Acked-by: Moritz Fischer
Acked-by: Alan Tull
---
.../bindings/fpga/lattice-machxo2-spi.txt | 29 +++
In preparation for making use of the new trace event error log, save
the subsystem and event name associated with the last hist command -
it will be passed as the location param in the event_log_err() calls.
Signed-off-by: Tom Zanussi
---
kernel/trace/trace_events_hist.c | 24 +++
Log errors to the tracing/events/error_log for nonexistent fields and
modifiers specified in hist triggers.
Also screen out variable references, which shouldn't be looked up as
fields.
Signed-off-by: Tom Zanussi
Reported-by: Masami Hiramatsu
---
kernel/trace/trace_events_hist.c | 7 +++
1
This is Paolo's v10 with a minor fixup. I had asked him to rebase his
patch on a branch with a new FPGA manager API. That API change ended
up not going upstream, so I've fixed it for the current API. This patch
applies cleanly on the current linux-next.
Paolo Pisati (2):
dt: bindings: fpga: a
On Thu, 12 Apr 2018, Matthew Wilcox wrote:
> > Thus the next invocation of the fastpath will find that c->freelist is
> > NULL and go to the slowpath. ...
>
> _ah_. I hadn't figured out that c->page was always NULL in the debugging
> case too, so ___slab_alloc() always hits the 'new_slab' case.
Introduce a new trace event file, tracing/events/error_log, for trace
event commands to log non-critical errors. This is useful for
allowing more complex commands such as hist trigger and kprobe_event
commands to point out specifically where something may have gone wrong
without forcing them to re
Hi Dan,
On 04/12/2018 10:08 AM, Dan Carpenter wrote:
I added Colin to the Cc list.
On Thu, Apr 12, 2018 at 09:30:09AM -0500, Gustavo A. R. Silva wrote:
priv is being dereferenced when it is still null, hence there is an
explicit null pointer dereference at line 935: free_netdev(priv->net_dev)
The flag-printing code used when displaying hist triggers somehow got
dropped during refactoring of the inter-event patchset. This restores
it.
Below are a couple examples - in the first case, .usecs wasn't being
displayed properly for common_timestamps and the second illustrates
the same for oth
This isn't right. It introduces a leak.
regards,
dan carpenter
Andrew,
On 12/04/2018 15:16, Andrew Lunn wrote:
> On Thu, Apr 12, 2018 at 02:55:34PM +0100, Phil Elwell wrote:
>> Add two new Device Tree properties:
>> * microchip,eee-enabled - a boolean to enable EEE
>> * microchip,tx-lpi-timer - time in microseconds to wait after TX goes
>>
This reverts commit 7c6893e3c9abf6a9676e060a1e35e5caca673d57.
Overlayfs no longer relies on the vfs for checking writability of files.
Signed-off-by: Miklos Szeredi
---
fs/internal.h | 2 --
fs/namespace.c | 64 +++---
fs/open.c | 4 ++
dentry_open() can now just call path_open().
Signed-off-by: Miklos Szeredi
---
fs/open.c | 22 ++
1 file changed, 2 insertions(+), 20 deletions(-)
diff --git a/fs/open.c b/fs/open.c
index 1d1a52908b0f..442088ca30f9 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -891,31 +891,13 @@
A corner case of a corner case is when
- file opened for O_RDONLY
- which is then memory mapped SHARED
- file opened for O_WRONLY
- contents modified
- contents read back though the shared mapping
Unfortunately it looks very difficult to do anything about the established
shared map after the
I added Colin to the Cc list.
On Thu, Apr 12, 2018 at 09:30:09AM -0500, Gustavo A. R. Silva wrote:
> priv is being dereferenced when it is still null, hence there is an
> explicit null pointer dereference at line 935: free_netdev(priv->net_dev)
>
> Also, memory allocated for netdev at line 854:
>
Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS.
Needs vfs_ioctl() exported to modules.
Signed-off-by: Miklos Szeredi
---
fs/internal.h | 1 -
fs/ioctl.c | 1 +
fs/overlayfs/file.c | 59 +
include/linux/fs.h | 2 ++
4 files ch
This is needed by overlayfs to be able to copy up a file from a read-only
lower layer to a writable layer when being mapped shared. When copying up,
overlayfs takes VFS locks that would violate locking order when nested
inside mmap_sem.
Add a new f_op->pre_mmap method, which is called before taki
Let overlayfs do its thing when opening a file.
This enables stacking and fixes the corner case when a file is opened for
read, modified through a writable open, and data is read from the read-only
file. After this patch the read-only open will not return stale data even
in this case.
Signed-off
Since set of arguments are so similar, handle in a common helper.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 79 +
1 file changed, 79 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 9670e160967e..39b1b73
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index cc004ff1b05b..9670e160967e 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -110,6 +110,9 @@ static int ovl_open(struct inode *
Implement stacked mmap.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 28
1 file changed, 28 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 4417527667ff..f1cc2fdc62c1 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@
In the common case we can just use the real file cached in
file->private_data. There are two exceptions:
1) File has been copied up since open: in this unlikely corner case just
use a throwaway real file for the operation. If ever this becomes a
perfomance problem (very unlikely, since overlayfs
Implement stacked fallocate.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 24
1 file changed, 24 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index f1cc2fdc62c1..05e3e2f80b89 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@
On 12/04/18 16:12, Dan Carpenter wrote:
> This isn't right. It introduces a leak.
Yup, and I see Gustavo is working on a correct fix, I'll leave that to him.
>
> regards,
> dan carpenter
>
> --
> To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in
> the body of a messa
> > @@ -2097,6 +2098,25 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
> > (void)lan78xx_set_eee(dev->net, &edata);
> > }
> >
> > + if (!of_property_read_u32_array(dev->udev->dev.of_node,
> > + "microchip,led-modes",
> > +
Implement file operations on a regular overlay file. The underlying file
is opened separately and cached in ->private_data.
It might be worth making an exception for such files when accounting in
nr_file to confirm to userspace expectations. We are only adding a small
overhead (248bytes for the
Implement stacked reading.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 56 +
1 file changed, 56 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index 409b542ff30c..a19429c5965d 100644
--- a/fs/overlayfs/file.c
Implement stacked writes.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 39 +++
1 file changed, 39 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index a19429c5965d..b98204c1c19c 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overla
Implement stacked fsync().
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/file.c | 20
1 file changed, 20 insertions(+)
diff --git a/fs/overlayfs/file.c b/fs/overlayfs/file.c
index b98204c1c19c..4417527667ff 100644
--- a/fs/overlayfs/file.c
+++ b/fs/overlayfs/file.c
@@ -222
Hi Masami,
Sorry for the delay in replying - was off for a few days..
On Sat, 2018-04-07 at 21:16 +0900, Masami Hiramatsu wrote:
> On Fri, 06 Apr 2018 11:47:29 -0500
> Tom Zanussi wrote:
>
> > > > > Can you print out the error with which event we should see? e.g.
> > > > >
> > > > > ERROR: V
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/super.c | 4
1 file changed, 4 insertions(+)
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index e8551c97de51..ad6a5baf226b 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -97,6 +97,10 @@ static struct dentry *ovl_d_r
On inode creation copy certain inode flags from the underlying real inode
to the overlay inode.
This is in preparation for moving overlay functionality out of the VFS.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/overlayfs.h | 7 +++
fs/overlayfs/util.c | 1 +
2 files changed, 8 inse
Copy i_size of the underlying inode to the overlay inode in ovl_copyattr().
This is in preparation for stacking I/O operations on overlay files.
This patch shouldn't have any observable effect.
Signed-off-by: Miklos Szeredi
---
fs/overlayfs/overlayfs.h | 2 ++
1 file changed, 2 insertions(+)
This reverts commit 31c3a7069593b072bd57192b63b62f9a7e994e9a.
Re-add functionality dealing with i_writecount on truncate to overlayfs.
This patch shouldn't have any observable effects, since we just re-assert
the writecout that vfs_truncate() already got for us.
This is in preparation for moving
Currently opening an overlay file results in:
- the real file on the underlying layer being opened
- f_path being set to the overlay {mount, dentry} pair
This patch adds a new helper that allows the above to be explicitly
performed. I.e. it's the same as dentry_open(), except the underlying
in
Memory allocated for netdev at line 854:
netdev = alloc_etherdev(sizeof(*priv));
is not being free'd before return, hence
there is a memory leak.
Fix this by freeing netdev before return.
Addresses-Coverity-ID: 1467844
Signed-off-by: Gustavo A. R. Silva
---
Changes in v2:
- Update subject and c
On Thu, Apr 12, 2018 at 11:11 PM, Icenowy Zheng wrote:
>
>
> 于 2018年4月12日 GMT+08:00 下午10:56:28, Maxime Ripard
> 写到:
>>On Wed, Apr 11, 2018 at 10:16:39PM +0800, Icenowy Zheng wrote:
>>> From: Chen-Yu Tsai
>>>
>>> On the Allwinner R40 SoC, the "GMAC clock" register is in the CCU
>>> address space
Copy up mtime and ctime to overlay inode after times in real object are
modified. Be careful not to dirty cachelines when not necessary.
This is in preparation for moving overlay functionality out of the VFS.
This patch shouldn't have any observable effect.
Signed-off-by: Miklos Szeredi
---
f
Enlightened MSR-Bitmap is a natural extension of Enlightened VMCS:
Hyper-V Top Level Functional Specification states:
"The L1 hypervisor may collaborate with the L0 hypervisor to make MSR
accesses more efficient. It can enable enlightened MSR bitmaps by setting
the corresponding field in the enlig
Up till now overlayfs didn't stack regular file operations. Instead, when
a file was opened on an overlay, the file from one of the underlying layers
would be opened and any file operations performed would directly go to the
underlying file on a real filesystem.
This works well mostly, but variou
Stacking file operations in overlay will store an extra open file for each
overlay file opened.
The overhead is just that of "struct file" which is about 256bytes, because
overlay already pins an extra dentry and inode when the file is open, which
add up to a much larger overhead.
For fear of bre
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