Re: [PATCH v5 3/4] arm64: Implement page table free interfaces

On 3/27/2018 11:30 PM, Will Deacon wrote: Hi Chintan, Hi Will, On Tue, Mar 27, 2018 at 06:54:59PM +0530, Chintan Pandya wrote: Implement pud_free_pmd_page() and pmd_free_pte_page(). Implementation requires, 1) Freeing of the un-used next level page tables 2) Clearing off the current p

general protection fault in account_system_index_time

Hello, syzbot hit the following crash on upstream commit 3eb2ce825ea1ad89d20f7a3b5780df850e4be274 (Sun Mar 25 22:44:30 2018 +) Linux 4.16-rc7 syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=bab86ea70f6f74bd9199 So far this crash happened 2 times on upstream. C reproducer: h

Re: [PATCH v29 1/4] mm: support reporting free page blocks

On Tue 27-03-18 19:07:22, Michael S. Tsirkin wrote: > On Tue, Mar 27, 2018 at 08:33:22AM +0200, Michal Hocko wrote: > > > > > + * The function itself might sleep so it cannot be called from atomic > > > > > + * contexts. > > > > I don't see how walk_free_mem_block() can sleep. > > > > > > OK, it w

INFO: rcu detected stall in __process_echoes

Hello, syzbot hit the following crash on upstream commit 3eb2ce825ea1ad89d20f7a3b5780df850e4be274 (Sun Mar 25 22:44:30 2018 +) Linux 4.16-rc7 syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=108696293d7a21ab688f So far this crash happened 10 times on upstream. C reproducer:

[PATCH v2 0/4] Support perf -vv

We keep having bug reports that when users build perf on their own, but they don't install some needed libraries such as libelf, libbfd/libibery. The perf can build, but it is missing important functionality. And users may complain that perf has issue or bug. This patch-set support 'perf -vv' and

[PATCH v2 3/4] perf version: Print the compiled-in status of libraries

This patch checks the values passed by CFLAGS (-DHAVE_XXX) and then print the status of libraries. For example, if HAVE_DWARF_SUPPORT is defined, that means the library "dwarf" is compiled-in. The patch will print the status "on" for this library otherwise print the status "OFF". v2: --- 1. Use I

[PATCH v2 4/4] perf: Support perf -vv

We keep having bug reports that when users build perf on their own, but they don't install some needed libraries such as libelf, libbfd/libibery. The perf can build, but it is missing important functionality. This patch provides a new option '-vv' which will print the compiled-in status of librar

[PATCH v2 1/4] tools include: Add config.h header file

From: Jiri Olsa Adding IS_BUILTIN macro and its dependencies into tools world. It's taken from kernel's include/linux/kconfig.h, which can't be taken completely due to its kconfig dependencies. Signed-off-by: Jiri Olsa --- tools/include/tools/config.h | 34 ++

Re: [PATCH 5/6] rhashtable: support guaranteed successful insertion.

On Wed, Mar 28 2018, Herbert Xu wrote: > On Wed, Mar 28, 2018 at 08:34:19AM +1100, NeilBrown wrote: >> >> It is easy to get an -EBUSY insertion failure when .disable_count is >> enabled, and I did get that. Blindly propagating that up caused lustre >> to get terribly confused - not too surprising

Re: [PATCH v2 0/5] allow override of bus format in bridges

On Mon, Mar 26, 2018 at 11:24:42PM +0200, Peter Rosin wrote: > Hi! > > [I got to v2 sooner than expected] > > I have an Atmel sama5d31 hooked up to an lvds encoder and then > on to an lvds panel. Which seems like something that has been > done one or two times before... > > The problem is that t

AW: Kontakt

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God dag, Jeg er Mr. Yuehan Pan, direktør for Bank of China Jeg leder efter en leder / investeringspartner, der vil arbejde sammen med mig for en fælles virksomhed. Kontakt mig i min private email for flere detaljer. email (yuehanpa...@gmail.com) Venter på at høre fra dig. Tak skal du have,

INFO: rcu detected stall in commit_echoes

Hello, syzbot hit the following crash on upstream commit 3eb2ce825ea1ad89d20f7a3b5780df850e4be274 (Sun Mar 25 22:44:30 2018 +) Linux 4.16-rc7 syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=a0366f667e2cac7c0bbf So far this crash happened 3 times on upstream. Unfortunately,

Re: INFO: rcu detected stall in commit_echoes

#syz dup: INFO: rcu detected stall in __process_echoes On Wed, Mar 28, 2018 at 9:11 AM, syzbot wrote: > Hello, > > syzbot hit the following crash on upstream commit > 3eb2ce825ea1ad89d20f7a3b5780df850e4be274 (Sun Mar 25 22:44:30 2018 +) > Linux 4.16-rc7 > syzbot dashboard link: > https://syzk

WARNING in kvm_arch_vcpu_ioctl_run (3)

Hello, syzbot hit the following crash on upstream commit 99fec39e7725d091c94d1bb0242e40c8092994f6 (Fri Mar 23 22:34:18 2018 +) Merge tag 'trace-v4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=76

Re: [PATCH] mtd: Replace typedef with struct

On Tue, 27 Mar 2018 21:32:19 +0200 Richard Weinberger wrote: > Am Sonntag, 18. März 2018, 18:51:23 CEST schrieb Arushi Singhal: > > Using typedef for a structure type is not suggested in Linux kernel > > coding style guidelines. Hence, occurrence of typedefs has been > > removed. > > > > Signed-

Re: [PATCH 4/6] rhashtable: allow a walk of the hash table without missing objects.

On Wed, Mar 28 2018, Herbert Xu wrote: > On Wed, Mar 28, 2018 at 08:54:41AM +1100, NeilBrown wrote: >> >> Possibly. >> I particularly want the interface to require that you pass the >> previously returned object to _continue. That makes it easy to see that >> the object is still being used. If so

Re: [PATCH] ANDROID: binder: change down_write to down_read

On Wed, Mar 28, 2018 at 4:42 AM, Minchan Kim wrote: > binder_update_page_range needs down_write of mmap_sem because > vm_insert_page need to change vma->vm_flags to VM_MIXEDMAP unless > it is set. However, when I profile binder working, it seems > every binder buffers should be mapped in advance b

Re: [Intel-gfx] [PATCH v4 1/2] drm: Use srcu to protect drm_device.unplugged

On Wed, Mar 28, 2018 at 09:47:40AM +0300, Oleksandr Andrushchenko wrote: > From: Noralf Trønnes > > Use srcu to protect drm_device.unplugged in a race free manner. > Drivers can use drm_dev_enter()/drm_dev_exit() to protect and mark > sections preventing access to device resources that are not av

linux-next: manual merge of the userns tree with the syscalls tree

Hi Eric, Today's linux-next merge of the userns tree got a conflict in: ipc/msg.c between commit: 370c8f44ce16 ("ipc: add msgget syscall wrapper") from the syscalls tree and commit: 50ab44b1c5d1 ("ipc: Directly call the security hook in ipc_ops.associate") from the userns tree. I fixe

Re: [PATCH v3 1/6] phy: qcom-qmp: Enable pipe_clk before checking USB3 PHY_STATUS

Hi, On 3/28/2018 1:44 AM, Doug Anderson wrote: > Hi, > > On Tue, Mar 27, 2018 at 12:50 AM, Manu Gautam wrote: >> Hi, >> >> >> On 3/27/2018 12:26 PM, Vivek Gautam wrote: >>> >>> On 3/27/2018 10:37 AM, Manu Gautam wrote: Hi Doug, On 3/27/2018 9:56 AM, Doug Anderson wrote: >

Re: [PATCH v3 3/6] dt-bindings: phy-qcom-qmp: Update bindings for sdm845

Hi, On 3/28/2018 3:07 AM, Doug Anderson wrote: > Hi, > > On Thu, Mar 22, 2018 at 11:11 PM, Manu Gautam wrote: >> Update compatible strings for USB3 PHYs on SDM845. >> One is QMPv3 DisplayPort-USB combo PHY and other one >> is USB UNI PHY which is single lane USB3 PHY without >> DP capability. >>

[PATCH 1/6] aio: don't print the page size at boot time

The page size is in no way related to the aio code, and printing it in the (debug) dmesg at every boot serves no purpose. Signed-off-by: Christoph Hellwig Acked-by: Jeff Moyer Reviewed-by: Greg Kroah-Hartman Reviewed-by: Darrick J. Wong --- fs/aio.c | 3 --- 1 file changed, 3 deletions(-) di

io_pgetevents & aio fsync V2

Hi all, this patch adds workqueue based fsync offload. Version of this patch have been floating around for a couple years, but we now have a user with seastar used by ScyllaDB (who sponsored this work) that really wants this in addition to the aio poll support. More details are in the patch itsel

[PATCH 6/6] aio: implement io_pgetevents

This is the io_getevents equivalent of ppoll/pselect and allows to properly mix signals and aio completions (especially with IOCB_CMD_POLL) and atomically executes the following sequence: sigset_t origmask; pthread_sigmask(SIG_SETMASK, &sigmask, &origmask); ret = io_geteve

Re: [PATCH 14/19] powerpc/altivec: Add missing prototypes for altivec

On Tue, Mar 27, 2018 at 7:33 PM, LEROY Christophe wrote: > LEROY Christophe a écrit : > > >> Mathieu Malaterre a écrit : >> >>> Christophe, >>> >>> On Sat, Mar 24, 2018 at 9:10 PM, LEROY Christophe >>> wrote: Mathieu Malaterre a écrit : > On Fri, Mar 23, 2018 at 1:19 PM

Re: [PATCH 3/4] gpio: Remove VLA from xra1403 driver

Hi Laura, On Sat, Mar 10, 2018 at 1:10 AM, Laura Abbott wrote: > The new challenge is to remove VLAs from the kernel > (see https://lkml.org/lkml/2018/3/7/621) > > This patch replaces a VLA with an appropriate call to kmalloc_array. > > Signed-off-by: Laura Abbott Thanks for your patch! > ---

Re: [PATCH 5/6] rhashtable: support guaranteed successful insertion.

On Wed, Mar 28, 2018 at 06:04:40PM +1100, NeilBrown wrote: > > I disagree. My patch 6 only makes it common instead of exceedingly > rare. If any table in the list other than the first has a chain with 16 > elements, then trying to insert an element with a hash which matches > that chain will fail

Re: [PATCH v3 5/6] dt-bindings: phy-qcom-usb2: Update bindings for sdm845

Hi, On 3/28/2018 3:27 AM, Doug Anderson wrote: > Hi, > > On Thu, Mar 22, 2018 at 11:11 PM, Manu Gautam wrote: >> Update compatible strings for USB2 PHYs on sdm845. >> There are two QUSB2 PHYs present on sdm845. Few PHY registers >> programming is different for these PHYs related to electrical >>

Re: WARNING in kvm_arch_vcpu_ioctl_run (3)

2018-03-28 15:13 GMT+08:00 syzbot : > Hello, > > syzbot hit the following crash on upstream commit > 99fec39e7725d091c94d1bb0242e40c8092994f6 (Fri Mar 23 22:34:18 2018 +) > Merge tag 'trace-v4.16-rc4' of > git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace > syzbot dashboard link

Re: [PATCH] proc: register filesystem last

On Wed, Mar 28, 2018 at 05:48:23AM +0100, Al Viro wrote: > On Sat, Mar 10, 2018 at 03:06:34AM +0300, Alexey Dobriyan wrote: > > On Fri, Mar 09, 2018 at 02:49:38PM -0800, Andrew Morton wrote: > > > On Sat, 10 Mar 2018 01:27:09 +0300 Alexey Dobriyan > > > wrote: > > > > > > > As soon as register_f

aio poll and a new in-kernel poll API V7

Hi all, this series adds support for the IOCB_CMD_POLL operation to poll for the readyness of file descriptors using the aio subsystem. The API is based on patches that existed in RHAS2.1 and RHEL3, which means it already is supported by libaio. To implement the poll support efficiently new meth

[PATCH] ANDROID: binder: prevent transactions into own process.

This can't happen with normal nodes (because you can't get a ref to a node you own), but it could happen with the context manager; to make the behavior consistent with regular nodes, reject transactions into the context manager by the process owning it. Reported-by: syzbot+09e05aba06723a94d...@syz

[PATCH 03/30] fs: update documentation to mention __poll_t and match the code

Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Reviewed-by: Greg Kroah-Hartman --- Documentation/filesystems/Locking | 2 +- Documentation/filesystems/vfs.txt | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/filesystems/Locking b/Documentation

[PATCH 01/30] fs: unexport poll_schedule_timeout

No users outside of select.c. Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman Reviewed-by: Darrick J. Wong --- fs/select.c | 3 +-- include/linux/poll.h | 2 -- 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/fs/select.c b/fs/select.c index b6c36254028a.

[PATCH 04/30] fs: add new vfs_poll and file_can_poll helpers

These abstract out calls to the poll method in preparation for changes in how we poll. Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman Reviewed-by: Darrick J. Wong --- drivers/staging/comedi/drivers/serial2002.c | 4 ++-- drivers/vfio/virqfd.c | 2 +- d

[PATCH 10/30] net: add support for ->poll_mask in proto_ops

The socket file operations still implement ->poll until all protocols are switched over. Signed-off-by: Christoph Hellwig --- include/linux/net.h | 3 +++ net/socket.c| 51 ++- 2 files changed, 49 insertions(+), 5 deletions(-) diff --git

[PATCH 08/30] aio: implement IOCB_CMD_POLL

Simple one-shot poll through the io_submit() interface. To poll for a file descriptor the application should submit an iocb of type IOCB_CMD_POLL. It will poll the fd for the events specified in the the first 32 bits of the aio_buf field of the iocb. Unlike poll or epoll without EPOLLONESHOT thi

[PATCH 13/30] net/unix: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/unix/af_unix.c | 30 +++--- 1 file changed, 11 insertions(+), 19 deletions(-) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 2d465bdeccbc..619c6921dd46 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -638,9

[PATCH 25/30] net/rxrpc: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/rxrpc/af_rxrpc.c | 10 +++--- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index 0c9c18aa7c77..d2440d5c3ce8 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -729,15 +729,11 @@

Re: [PATCH 4/6] rhashtable: allow a walk of the hash table without missing objects.

On Wed, Mar 28, 2018 at 06:17:57PM +1100, NeilBrown wrote: > > Sounds like over-kill to me. > It might be reasonable to have a CONFIG_DEBUG_RHASHTABLE which enables > extra to code to catch misuse, but I don't see the justification for > always performing these checks. > The DEBUG code could just s

[PATCH 20/30] net/bluetooth: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- include/net/bluetooth/bluetooth.h | 2 +- net/bluetooth/af_bluetooth.c | 7 ++- net/bluetooth/l2cap_sock.c| 2 +- net/bluetooth/rfcomm/sock.c | 2 +- net/bluetooth/sco.c | 2 +- 5 files changed, 6 insertions(+), 9 deletions

[PATCH 18/30] net/tipc: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/tipc/socket.c | 14 +- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 7dfa9fc99ec3..e9c6f185db74 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -695,10 +695,9 @@ static int t

[PATCH 30/30] random: convert to ->poll_mask

The big change is that random_read_wait and random_write_wait are merged into a single waitqueue that uses keyed wakeups. Because wait_event_* doesn't know about that this will lead to occassional spurious wakeups in _random_read and add_hwgenerator_randomness, but wait_event_* is designed to hand

[PATCH 29/30] timerfd: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- fs/timerfd.c | 22 +++--- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/fs/timerfd.c b/fs/timerfd.c index cdad49da3ff7..d84a2bee4f82 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -226,21 +226,20 @@ static int timerfd_release

[PATCH 27/30] pipe: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- fs/pipe.c | 22 +- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/fs/pipe.c b/fs/pipe.c index 7b1954caf388..81937590ea0a 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -509,19 +509,22 @@ static long pipe_ioctl(struct file *filp,

[PATCH 28/30] eventfd: switch to ->poll_mask

Signed-off-by: Christoph Hellwig --- fs/eventfd.c | 15 +++ 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/fs/eventfd.c b/fs/eventfd.c index 012f5bd46dfa..d70b4907f978 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -101,14 +101,20 @@ static int eventfd_release(struct

[PATCH 26/30] crypto: af_alg: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- crypto/af_alg.c | 13 +++-- crypto/algif_aead.c | 4 ++-- crypto/algif_skcipher.c | 4 ++-- include/crypto/if_alg.h | 3 +-- 4 files changed, 8 insertions(+), 16 deletions(-) diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 50d75de5

[PATCH 24/30] net/iucv: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- include/net/iucv/af_iucv.h | 2 -- net/iucv/af_iucv.c | 7 ++- 2 files changed, 2 insertions(+), 7 deletions(-) diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h index f4c21b5a1242..b0eaeb02d46d 100644 --- a/include/net/iucv/af_

[PATCH 22/30] net/nfc: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/nfc/llcp_sock.c | 9 +++-- 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 376040092142..b6010750e634 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -549,16 +549,13 @@ static

[PATCH 23/30] net/phonet: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/phonet/socket.c | 7 ++- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/net/phonet/socket.c b/net/phonet/socket.c index 28d981512f5f..70ac4539d5b7 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -341,15 +341,12 @@ static in

[PATCH 21/30] net/caif: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/caif/caif_socket.c | 12 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index a6fb1b3bcad9..c7991867d622 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -934,15

Re: [PATCH v3 6/6] phy: qcom-qusb2: Add QUSB2 PHYs support for sdm845

Hi, On 3/28/2018 4:22 AM, Doug Anderson wrote: > Hi, > > On Thu, Mar 22, 2018 at 11:11 PM, Manu Gautam wrote: >> There are two QUSB2 PHYs present on sdm845. Update PHY >> registers programming for both the PHYs related to >> electrical parameters to improve eye diagram. > This tuning difference

Re: [PATCH] drm/atmel-hlcdc: add command line option to specify preferred depth

Hi Peter, On Mon, 26 Mar 2018 09:35:02 +0200 Peter Rosin wrote: > I have an sama5d31-based system with 64MB of memory and a 1920x1080 > LVDS display wired for 16-bpp. When I enable legacy fbdev support, > the contiguous memory allocator invariably fails with the order-11 > allocation for a 1920x

[PATCH 19/30] net/sctp: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- include/net/sctp/sctp.h | 3 +-- net/sctp/ipv6.c | 2 +- net/sctp/protocol.c | 2 +- net/sctp/socket.c | 4 +--- 4 files changed, 4 insertions(+), 7 deletions(-) diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index f7ae6b0a21

Re: [PATCH] perf trace: remove redundant ')'

Hi Arnaldo, Just a kind reminder. Hope you didn't forget this. On Fri, Mar 16, 2018 at 09:50:45AM -0300, Arnaldo Carvalho de Melo wrote: > Em Fri, Mar 16, 2018 at 03:51:09PM +0800, Du, Changbin escreveu: > > Hi Arnaldo, How about this simple one? Thanks. > > > > On Tue, Mar 13, 2018 at 06:40:01PM

[PATCH 17/30] net/vmw_vsock: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/vmw_vsock/af_vsock.c | 19 ++- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index e0fc84daed94..b9210329bda8 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_

[PATCH 14/30] net: convert datagram_poll users tp ->poll_mask

Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman --- drivers/isdn/mISDN/socket.c| 2 +- drivers/net/ppp/pppoe.c| 2 +- drivers/staging/ipx/af_ipx.c | 2 +- drivers/staging/irda/net/af_irda.c | 6 +++--- include/linux/skbuff.h | 3 +-- in

[PATCH 16/30] net/atm: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/atm/common.c | 11 +++ net/atm/common.h | 2 +- net/atm/pvc.c| 2 +- net/atm/svc.c| 2 +- 4 files changed, 6 insertions(+), 11 deletions(-) diff --git a/net/atm/common.c b/net/atm/common.c index fc78a0508ae1..1f2af59935db 100644 --- a/n

[PATCH 15/30] net/dccp: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- net/dccp/dccp.h | 3 +-- net/dccp/ipv4.c | 2 +- net/dccp/ipv6.c | 2 +- net/dccp/proto.c | 13 ++--- 4 files changed, 5 insertions(+), 15 deletions(-) diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index f91e3816806b..0ea2ee56ac1b 100644 --- a/

Re: [PATCH] Input: ALPS - add support for 73 03 28 devices (Thinkpad L570)

Ah, this si again same issue... It was already discussed here: https://patchwork.kernel.org/patch/10081557/ -- Pali Rohár pali.ro...@gmail.com

[PATCH 12/30] net/tcp: convert to ->poll_mask

Signed-off-by: Christoph Hellwig --- include/net/tcp.h | 4 ++-- net/ipv4/af_inet.c | 3 ++- net/ipv4/tcp.c | 31 ++- net/ipv6/af_inet6.c | 3 ++- 4 files changed, 20 insertions(+), 21 deletions(-) diff --git a/include/net/tcp.h b/include/net/tcp.h index e3

Re: [PATCH] Input: ALPS - fix DualPoint flag for 74 03 28 devices

Ideally this information should be put as a comment into the code. It is really not obvious. On Tuesday 27 March 2018 04:37:19 Masaki Ota wrote: > Hi, > > We can get OTP page 0 value by EA EA E9 commands, but we cannot get it by EA > EA EA E9. > As far as I remember, Device initialization finis

[PATCH] drm: Use srcu to protect drm_device.unplugged

From: Noralf Trønnes Use srcu to protect drm_device.unplugged in a race free manner. Drivers can use drm_dev_enter()/drm_dev_exit() to protect and mark sections preventing access to device resources that are not available after the device is gone. Suggested-by: Daniel Vetter Signed-off-by: Nora

[PATCH 09/30] net: refactor socket_poll

Factor out two busy poll related helpers for late reuse, and remove a command that isn't very helpful, especially with the __poll_t annotations in place. Signed-off-by: Christoph Hellwig --- include/net/busy_poll.h | 15 +++ net/socket.c| 21 - 2 files

[PATCH 11/30] net: remove sock_no_poll

Now that sock_poll handles a NULL ->poll or ->poll_mask there is no need for a stub. Signed-off-by: Christoph Hellwig --- crypto/af_alg.c | 1 - crypto/algif_hash.c | 2 -- crypto/algif_rng.c | 1 - drivers/isdn/mISDN/socket.c | 1 - drivers/net/ppp/pptp.c | 1 -

[PATCH 06/30] aio: simplify cancellation

With the current aio code there is no need for the magic KIOCB_CANCELLED value, as a cancelation just kicks the driver to queue the completion ASAP, with all actual completion handling done in another thread. Given that both the completion path and cancelation take the context lock there is no need

[PATCH 07/30] aio: add delayed cancel support

The upcoming aio poll support would like to be able to complete the iocb inline from the cancellation context, but that would cause a lock order reversal. Add support for optionally moving the cancelation outside the context lock to avoid this reversal. To make this safe aio_complete needs to che

Re: [PATCH 15/19] csky: Build infrastructure

On Wed, Mar 28, 2018 at 5:49 AM, Guo Ren wrote: > Hi Arnd, > > On Tue, Mar 27, 2018 at 09:38:56AM +0200, Arnd Bergmann wrote: >> Usually the way gcc handles this, either each CPU is a strict superset >> of another >> one, so you just need to specify the one with the smallest instruction set, >> or

[PATCH 05/30] fs: introduce new ->get_poll_head and ->poll_mask methods

->get_poll_head returns the waitqueue that the poll operation is going to sleep on. Note that this means we can only use a single waitqueue for the poll, unlike some current drivers that use two waitqueues for different events. But now that we have keyed wakeups and heavily use those for poll the

linux-next: build failure after merge of the userns tree

Hi Eric, After merging the userns tree, today's linux-next build (powerpc ppc64_defconfig) produced this warning: In file included from include/linux/sched.h:16:0, from arch/powerpc/lib/xor_vmx_glue.c:14: include/linux/shm.h:17:35: error: 'struct file' declared inside parameter l

Re: [PATCH v4 2/2] drm/xen-front: Add support for Xen PV display frontend

On Wed, Mar 28, 2018 at 09:47:41AM +0300, Oleksandr Andrushchenko wrote: > From: Oleksandr Andrushchenko > > Add support for Xen para-virtualized frontend display driver. > Accompanying backend [1] is implemented as a user-space application > and its helper library [2], capable of running as a We

[PATCH 02/30] fs: cleanup do_pollfd

Use straightline code with failure handling gotos instead of a lot of nested conditionals. Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman Reviewed-by: Darrick J. Wong --- fs/select.c | 48 +++- 1 file changed, 23 insertions(+), 25 d

[PATCH 5/6] aio: implement IOCB_CMD_FSYNC and IOCB_CMD_FDSYNC

Simple workqueue offload for now, but prepared for adding a real aio_fsync method if the need arises. Based on an earlier patch from Dave Chinner. Signed-off-by: Christoph Hellwig Reviewed-by: Greg Kroah-Hartman Reviewed-by: Darrick J. Wong --- fs/aio.c | 50 ++

[PATCH 4/6] aio: sanitize ki_list handling

Instead of handcoded non-null checks always initialize ki_list to an empty list and use list_empty / list_empty_careful on it. While we're at it also error out on a double call to kiocb_set_cancel_fn instead of ignoring it. Signed-off-by: Christoph Hellwig Acked-by: Jeff Moyer Reviewed-by: Greg

[PATCH 3/6] aio: refactor read/write iocb setup

Don't reference the kiocb structure from the common aio code, and move any use of it into helper specific to the read/write path. This is in preparation for aio_poll support that wants to use the space for different fields. Signed-off-by: Christoph Hellwig Acked-by: Jeff Moyer Reviewed-by: Greg

RE: [PATCH v2 3/8] DT: arm: renesas,r9a06g032: add the RZ/N1 bindings

Hi Geert, Thanks for your review! On 22 March 2018 12:37, Geert said: > Hi Michel, > > On Thu, Mar 22, 2018 at 12:44 PM, Michel Pollet > wrote: > > This documents the RZ/N1 bindings for both the RZ/N1 and the > > RZN1D400-DB board. > > > > Signed-off-by: Michel Pollet > > Thanks for your patch

[PATCH 2/6] aio: remove an outdated comment in aio_complete

These days we don't treat sync iocbs special in the aio completion code as they never use it. Remove the old comment and BUG_ON given that the current definition of is_sync_kiocb makes it impossible to hit. iocb to the top of the function. Signed-off-by: Christoph Hellwig --- fs/aio.c | 9 -

[PATCH] sched: support dynamiQ cluster

Arm DynamiQ system can integrate cores with different micro architecture or max OPP under the same DSU so we can have cores with different compute capacity at the LLC (which was not the case with legacy big/LITTLE architecture). Such configuration is similar in some way to ITMT on intel platform wh

Re: [PATCH v9 01/24] mm: Introduce CONFIG_SPECULATIVE_PAGE_FAULT

Hi David, Thanks a lot for your deep review on this series. On 25/03/2018 23:50, David Rientjes wrote: > On Tue, 13 Mar 2018, Laurent Dufour wrote: > >> This configuration variable will be used to build the code needed to >> handle speculative page fault. >> >> By default it is turned off, and a

Re: dma-mapping: clearing GFP_ZERO flag caused crashes of Ethernet on arc/hsdk board.

> > The logical question is why? > > 1. See that's another platform with ARC core so maybe in case of ARM >DMA allocator already zeroes pages regardless provided flags - >personally I didn't check that. Yes, most architectures always clear memory returned by dma_alloc*. Looks like a few d

Re: [PATCH v4 2/2] drm/xen-front: Add support for Xen PV display frontend

On 03/28/2018 10:42 AM, Daniel Vetter wrote: kms side looks good now too. Reviewed-by: Daniel Vetter Thank you

Re: [PATCH 2/4] vfio: ccw: refactor and improve pfn_array_alloc_pin()

On Wed, 28 Mar 2018 10:36:38 +0800 Dong Jia Shi wrote: > * Cornelia Huck [2018-03-27 12:01:27 +0200]: > > [...] > > > > > > > > > So, basically everything is filled by pfn_array_alloc_pin()? > > > Yes. > > > > > > > Should we expect a clean struct pfn_array handed in by the caller, > >

RE: [PATCH v2 0/8] arm: Base support for Renesas RZN1D-DB Board

Replying to myself here, more or less to reflect further discussion on IRC related to where the bindings goes. Also, to publicly acknowledge and thank Geert for tons of advice and comments outside the email chain... So, after further discussion on IRC, that's what I've been trying to do [hope ou

Re: [PATCH v3 2/2] net: macb: Try to retrieve MAC addess from nvmem provider

On 27/03/2018 at 11:52, Mike Looijmans wrote: Call of_get_nvmem_mac_address() to fetch the MAC address from an nvmem cell, if one is provided in the device tree. This allows the address to be stored in an I2C EEPROM device for example. Signed-off-by: Mike Looijmans For this part: Acked-by: Ni

Re: [PATCH] mm/list_lru: replace spinlock with RCU in __list_lru_count_one

://github.com/0day-ci/linux/commits/Li-RongQing/mm-list_lru-replace-spinlock-with-RCU-in-__list_lru_count_one/20180328-042620 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>)

Re: [PATCH] nvme: don't send keep-alives to the discovery controller

Looks good, Reviewed-by: Christoph Hellwig

Re: [PATCH 15/19] csky: Build infrastructure

Hi Arnd, On Wed, Mar 28, 2018 at 09:40:49AM +0200, Arnd Bergmann wrote: > Ok, thanks for the clarification. Obviously if they are mutually incompatible, > there is no point in using a common kernel, so your current version is > absolutely fine, and this is similar to how we cannot have a common ke

Re: [PATCH] nvme-multipath: implement active-active round-robin path selector

For PCIe devices the right policy is not a round robin but to use the pcie device closer to the node. I did a prototype for that long ago and the concept can work. Can you look into that and also make that policy used automatically for PCIe devices?

Re: [PATCH] nvme: unexport nvme_start_keep_alive

On Mon, Mar 26, 2018 at 10:40:15AM +0200, Johannes Thumshirn wrote: > nvme_start_keep_alive() isn't used outside core.c so unexport it and > make it static. > > Signed-off-by: Johannes Thumshirn Looks good: Reviewed-by: Christoph Hellwig

Re: NFS mounts failing when keytab present on client

On Tue, 27 Mar 2018, Eric Biggers wrote: > Hi Michael, > > On Tue, Mar 27, 2018 at 11:06:14PM +0100, Michael Young wrote: > > NFS mounts stopped working on one of my computers after a kernel update from > > 4.15.3 to 4.15.4. I traced the problem to the commit > > [46e8d06e423c4f35eac7a8b677b713b3

arm/arm64: smp_spin_table.c for arm32?

Hi guys, I'm currently adapting a port from a machine-file based approach to driver based, and I would have a need for arch/arm64/kernel/smp_spin_table.c -- it's *exactly* my use case, but for arm32. So what would be my options here? 1) Make myself a custom driver and ignore this one... 2) Full

Re: [RFT][PATCH v7 6/8] sched: idle: Select idle state before stopping the tick

On Wed, Mar 28, 2018 at 12:10 AM, Rafael J. Wysocki wrote: > On Tuesday, March 27, 2018 11:50:02 PM CEST Thomas Ilsche wrote: >> On 2018-03-20 16:45, Rafael J. Wysocki wrote: >> > From: Rafael J. Wysocki >> > >> > In order to address the issue with short idle duration predictions >> > by the idle

Re: [PATCH v9 05/24] mm: Introduce pte_spinlock for FAULT_FLAG_SPECULATIVE

On 25/03/2018 23:50, David Rientjes wrote: > On Tue, 13 Mar 2018, Laurent Dufour wrote: > >> When handling page fault without holding the mmap_sem the fetch of the >> pte lock pointer and the locking will have to be done while ensuring >> that the VMA is not touched in our back. >> >> So move the

Re: [PATCH] ANDROID: binder: prevent transactions into own process.

On Wed, Mar 28, 2018 at 09:29:03AM +0200, Martijn Coenen wrote: > This can't happen with normal nodes (because you can't get a ref > to a node you own), but it could happen with the context manager; > to make the behavior consistent with regular nodes, reject > transactions into the context manager

Re: [PATCH v3 05/11] dt-bindings: i3c: Document core bindings

Hi Rob, On Mon, 26 Mar 2018 17:24:58 -0500 Rob Herring wrote: > > + > > +I3C devices > > +=== > > + > > +All I3C devices are supposed to support DAA (Dynamic Address Assignment), > > and > > +are thus discoverable. So, by default, I3C devices do not have to be > > described > > +in the

Re: [PATCH 4.9 00/67] 4.9.91-stable review

On Tue, Mar 27, 2018 at 08:35:01PM -0500, Dan Rue wrote: > qemu_x86_64 > * boot - pass: 21 > * kselftest - skip: 28, pass: 52 Do you have a list of what you are skipping anywhere? There was some x86 changes that I had to backport that I was worried about getting right here, are you running the x8

Re: [PATCH v2] rslib: Remove VLAs by setting upper bound on nroots

On Tue, 27 Mar 2018, Kees Cook wrote: > On Tue, Mar 27, 2018 at 4:45 PM, Andrew Morton > wrote: > > On Mon, 26 Mar 2018 16:17:57 -0700 Kees Cook wrote: > > > >> On Fri, Mar 16, 2018 at 11:25 PM, Kees Cook wrote: > >> > On Fri, Mar 16, 2018 at 3:59 PM, Andrew Morton > >> > wrote: > >> >> On Thu,

Re: [PATCH 4/4] nvme: lightnvm: add late setup of block size and metadata

I really don't want more lightnvm cruft in the core. We'll need a proper abstraction.c On Fri, Mar 23, 2018 at 12:00:08PM +0100, Matias Bjørling wrote: > On 02/05/2018 01:15 PM, Matias Bjørling wrote: > > The nvme driver sets up the size of the nvme namespace in two steps. > > First it initialize

Re: [PATCH v9 06/24] mm: make pte_unmap_same compatible with SPF

On 27/03/2018 23:18, David Rientjes wrote: > On Tue, 13 Mar 2018, Laurent Dufour wrote: > >> diff --git a/include/linux/mm.h b/include/linux/mm.h >> index 2f3e98edc94a..b6432a261e63 100644 >> --- a/include/linux/mm.h >> +++ b/include/linux/mm.h >> @@ -1199,6 +1199,7 @@ static inline void clear_p

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