Re: [PATCH 3/3] i2c: mux: pca9541: prepare for PCA9641 support

On 03/21/2018 03:19 AM, Guenter Roeck wrote: > On 03/20/2018 04:17 PM, Vladimir Zapolskiy wrote: >> Hi Peter, Ken, >> >> On 03/20/2018 11:32 AM, Peter Rosin wrote: >>> Make the arbitrate and release_bus implementation chip specific. >>> >> >> by chance I took a look at the original implementation d

RE: [PATCH 14/15] x86/fsgsbase/64: Support legacy behavior when FS/GS updated by ptracer

> -Original Message- > From: Andy Lutomirski [mailto:l...@kernel.org] > Sent: 21 March 2018 01:47 Hello Andy, > I retract this particular comment. But I still think that all this > complexity needs to > be more clearly justified. My objection to the old approach wasn't that I > though

Re: [PATCH 3/3] i2c: mux: pca9541: prepare for PCA9641 support

On 03/20/2018 11:32 AM, Peter Rosin wrote: > Make the arbitrate and release_bus implementation chip specific. > > Signed-off-by: Peter Rosin Reviewed-by: Vladimir Zapolskiy The change is really good and correct, it is just too extended IMHO. -- With best wishes, Vladimir

[PATCH net-next 00/11] fix some bugs for HNS3 driver

This patchset fixes some bugs for HNS3 driver: [Patch 1/11 - 5/11] fix various bugs reported by hisilicon test team. [Patch 6/11 - 7/11] fix bugs about interrupt coalescing self-adaptive function. [Patch 8/11 - 11/11] fix bugs about ethtool_ops.get_link_ksettings. Fuyun Liang (7): net: hns3: rea

[PATCH net-next 09/11] net: hns3: add get_link support to VF

From: Fuyun Liang This patch adds ethtool_ops.get_link support to VF. Signed-off-by: Fuyun Liang Signed-off-by: Peng Li --- drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c| 1 + drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 8 2 files changed, 9 insertions(+)

[PATCH net-next 11/11] net: hns3: fix for not returning problem in get_link_ksettings when phy exists

From: Fuyun Liang When phy exists, phy_ethtool_ksettings_get function is enough to get the link ksettings. If the phy exists, get_link_ksettings function can return directly after phy_ethtool_ksettings_get is called. Signed-off-by: Fuyun Liang Signed-off-by: Peng Li --- drivers/net/ethernet/h

[PATCH net-next 04/11] net: hns3: export pci table of hclge and hclgevf to userspace

From: Yunsheng Lin There is no module that is dependent on hclge or hclgevf's symbol, but hns_enet need them to provide ops for it to run. When there is a need to auto load the hns3 driver, the auto load will fail because hclge or hclgevf is not loaded. Hns_enet has already exported the pci tabl

RE: [PATCH v2 1/2] dma-mapping: move dma configuration to bus infrastructure

> -Original Message- > From: Nipun Gupta > Sent: Wednesday, March 21, 2018 12:25 PM > To: robin.mur...@arm.com; h...@lst.de; li...@armlinux.org.uk; > gre...@linuxfoundation.org; m.szyprow...@samsung.com > Cc: bhelg...@google.com; zaj...@gmail.com; andy.gr...@linaro.org; > david.br...@lina

[PATCH net-next 03/11] net: hns3: fix for vlan table lost problem when resetting

From: Yunsheng Lin The vlan table in hardware is clear after PF/Core/IMP/Global reset, which will cause vlan tagged packets not being received problem. This patch fixes it by restoring the vlan table after reset. Signed-off-by: Yunsheng Lin Signed-off-by: Peng Li --- drivers/net/ethernet/his

[PATCH net-next 01/11] net: hns3: reallocate tx/rx buffer after changing mtu

From: Fuyun Liang When changing the mtu, the max frame size also will be changed. The tx buffer size and the rx buffer size to be allocated are determined by max frame size. So when max frame size is changed, the tx buffer and rx buffer need to be reallocated. When the tc_num is changed, the tx

[PATCH net-next 08/11] net: hns3: fix for getting wrong link mode problem

From: Fuyun Liang Fixed link mode is returned by hns3_get_link_ksettings. It is unreasonable. This patch fixes it by adding some related functions to get link mode from hardware. Signed-off-by: Fuyun Liang Signed-off-by: Peng Li --- drivers/net/ethernet/hisilicon/hns3/hnae3.h| 4 +

[PATCH net-next 07/11] net: hns3: change the time interval of int_gl calculating

From: Fuyun Liang Since we change the update rate of int_gl from every interrupt to every one hundred interrupts, the old way to get time interval by int_gl value is not accurate. This patch calculates the time interval using the jiffies value. Signed-off-by: Fuyun Liang Signed-off-by: Peng Li

[PATCH net-next 10/11] net: hns3: add querying speed and duplex support to VF

From: Fuyun Liang This patch adds support for querying speed and duplex by ethtool ethX to VF. Signed-off-by: Fuyun Liang Signed-off-by: Peng Li --- .../net/ethernet/hisilicon/hns3/hns3pf/hclge_mbx.c | 8 ++-- .../ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 22 ++

[PATCH net-next 05/11] net: hns3: increase the max time for IMP handle command

It may need more time for IMP handle some command, such as reset. This patch enlarges the max time for cmd timeout. Driver will check the IMP result every us, it may break through the loop when get the right result. So not all command need the max time. Signed-off-by: Peng Li --- drivers/net/et

[PATCH net-next 06/11] net: hns3: change GL update rate

From: Fuyun Liang The interrupt coalescing self-adaptive function updates the int_gl every interrupt. The GL update rate is too faster to get a better new GL value. This patch changes the GL update rate to every one hundred interrupts. The GL update rate is defined by HNS3_INT_ADAPT_DOWN_START.

[PATCH net-next 02/11] net: hns3: fix the VF queue reset flow error

VF queue reset flow is different from PF queue reset flow. VF driver should stop VF queue first, then send message to PF and PF do the reset. PF should send a response to VF after PF complete the queue reset, VF can initialize the queue hw after get the response. This patch fixes the VF queue reset

Re: [Bug 199003] console stalled, cause Hard LOCKUP.

On (03/20/18 09:34), bugzilla-dae...@bugzilla.kernel.org wrote: [..] > Thanks very much. > commit e480af09c49736848f749a43dff2c902104f6691 avoided the NMI watchdog > trigger. Hm, okay... But "touch_nmi_watchdog() everywhere printk/console-related" is not exactly where I wanted us to be. By the wa

RE: [PATCH v2 1/2] dma-mapping: move dma configuration to bus infrastructure

> -Original Message- > From: Bharat Bhushan > Sent: Wednesday, March 21, 2018 12:49 > > > > +int dma_configure(struct device *dev) > > +{ > > + if (dev->bus->dma_configure) > > + return dev->bus->dma_configure(dev); > > What if dma_common_configure() is called in case "bus->

Re: [PATCH RFC 2/2] virtio_ring: support packed ring

On Fri, Mar 16, 2018 at 07:36:47PM +0800, Jason Wang wrote: > On 2018年03月16日 18:04, Tiwei Bie wrote: > > On Fri, Mar 16, 2018 at 04:34:28PM +0800, Jason Wang wrote: > > > On 2018年03月16日 15:40, Tiwei Bie wrote: > > > > On Fri, Mar 16, 2018 at 02:44:12PM +0800, Jason Wang wrote: > > > > > On 2018年03月

[PATCH 1/9] 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: Darrick J. Wong --- fs/aio.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/fs/aio.c b/fs/aio.c in

[PATCH 3/9] 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: Darr

[PATCH 7/9] 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. Signed-off-by: Christoph Hellwig Acked-by:

[PATCH 6/9] aio: delete iocbs from the active_reqs list in kiocb_cancel

One we cancel an iocb there is no reason to keep it on the active_reqs list, given that the list is only used to look for cancelation candidates. Signed-off-by: Christoph Hellwig Acked-by: Jeff Moyer --- fs/aio.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/aio.c b

[PATCH 9/9] 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 --- fs/aio.c | 50 ++ 1 file changed, 50 insertions(+) diff --git

[PATCH 8/9] 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

[PATCH 5/9] 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

Re: [PATCH 1/5 v4] add compression algorithm zBeWalgo

Hi Philippe, > Am 20.03.2018 um 17:30 schrieb Philippe Ombredanne : > > Hi Benjamin, > > On Tue, Mar 20, 2018 at 7:04 AM, Benjamin Warnke > <4bwar...@informatik.uni-hamburg.de> wrote: >> zBeWalgo is a completely new algorithm - Currently it is not published >> somewhere else right now, googlein

[PATCH 4/9] 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: Darr

[PATCH 2/9] 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 move the BUG_ON for a sync iocb to the top of the function. Signed-off-by: Christoph Hellwig Acked-by: Jeff Moyer Reviewed-by: Darrick J. Wong --- fs/aio.c | 11 ++

Re: [PATCH 2/3] i2c: mux: pca9541: namespace cleanup

On 2018-03-21 07:54, Vladimir Zapolskiy wrote: > Hi Peter, > > On 03/21/2018 07:53 AM, Peter Rosin wrote: >> On 2018-03-21 00:24, Vladimir Zapolskiy wrote: >>> Hi Peter, >>> >>> On 03/20/2018 11:31 AM, Peter Rosin wrote: In preparation for PCA9641 support, convert the mybus and busoff macros

io_pgetevents & aio fsync

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

Re: [PATCH RFC 2/2] virtio_ring: support packed ring

On Fri, Mar 16, 2018 at 04:30:02PM +0200, Michael S. Tsirkin wrote: > On Fri, Mar 16, 2018 at 07:36:47PM +0800, Jason Wang wrote: > > > > @@ -1096,17 +1599,21 @@ struct virtqueue *vring_create_virtqueue( > > > > > > > > > if (!queue) { > > > > > > > > > /* Try to get a single pa

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

On Tue, Mar 20, 2018 at 9:13 PM, Guo Ren wrote: > Hi arnd, > > On Mon, Mar 19, 2018 at 11:45:23PM +0800, Arnd Bergmann wrote: >> Does your architecture provide a reliable high-reslution clocksource? >> If yes, you >> could use that for the delay, rather than a calibrated loop. > Currently, all boa

Re: [PATCH] [RFC] drm: rcar-du: keep temporary dtb files around during build

On Tue, Mar 20, 2018 at 9:15 PM, Laurent Pinchart wrote: > Hi Arnd, > > On Friday, 16 March 2018 10:25:25 EET Arnd Bergmann wrote: >> On Fri, Mar 16, 2018 at 2:39 AM, wrote: >> > On Thursday, March 15, 2018 8:37 AM, Arnd Bergmann wrote: >> >> The *.dtb and *.dtb.S files get removed by 'make' dur

aio poll and a new in-kernel poll API V6

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 03/28] fs: update documentation to mention __poll_t

Signed-off-by: Christoph Hellwig --- Documentation/filesystems/Locking | 2 +- Documentation/filesystems/vfs.txt | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 75d2d57e2c44..220bba28f72b 100644 --

[PATCH 14/28] 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 08/28] 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 10/28] 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

[PATCH 17/28] 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

[PATCH 22/28] 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 24/28] 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 26/28] 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 28/28] 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 27/28] 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 25/28] 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 23/28] 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 @@

[PATCH 21/28] 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 20/28] 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 19/28] 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

[PATCH 18/28] 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

Re: [RFC PATCH v2 2/4] mm/__free_one_page: skip merge for order-0 page unless compaction failed

On Tue, Mar 20, 2018 at 10:59:16PM -0700, Figo.zhang wrote: > 2018-03-20 21:53 GMT-07:00 Aaron Lu : > > > On Tue, Mar 20, 2018 at 09:21:33PM -0700, Figo.zhang wrote: > > > suppose that in free_one_page() will try to merge to high order anytime , > > > but now in your patch, > > > those merge has p

Re: [RFC PATCH 0/3] kernel: add support for 256-bit IO access

So I poked around a bit and I'm having second thoughts: * Linus Torvalds wrote: > On Tue, Mar 20, 2018 at 1:26 AM, Ingo Molnar wrote: > > > > So assuming the target driver will only load on modern FPUs I *think* it > > should > > actually be possible to do something like (pseudocode): > > > >

[PATCH 15/28] 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 16/28] 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 13/28] 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/

[PATCH 09/28] 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 12/28] net: convert datagram_poll users tp ->poll_mask

Signed-off-by: Christoph Hellwig --- 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 +-- include/net/udp.h

[PATCH 06/28] 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 11/28] 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 07/28] 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 05/28] 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

Re: [PATCH 1/1] lz4: Implement lz4 with dynamic offset length.

On (03/21/18 10:10), Maninder Singh wrote: [..] > +static struct crypto_alg alg_lz4_dyn = { > + .cra_name = "lz4_dyn", > + .cra_flags = CRYPTO_ALG_TYPE_COMPRESS, > + .cra_ctxsize= sizeof(struct lz4_ctx), > + .cra_module = THIS_MODUL

[PATCH 04/28] 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: Darrick J. Wong --- drivers/staging/comedi/drivers/serial2002.c | 4 ++-- drivers/vfio/virqfd.c | 2 +- drivers/vhost/vhost.c

[PATCH 02/28] fs: cleanup do_pollfd

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

[PATCH 01/28] fs: unexport poll_schedule_timeout

No users outside of select.c. Signed-off-by: Christoph Hellwig 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..686de7b3a1db 100644 --- a/fs/sel

Re: [RFC PATCH v2 2/4] mm/__free_one_page: skip merge for order-0 page unless compaction failed

On 03/20/2018 03:11 PM, Aaron Lu wrote: > On Tue, Mar 20, 2018 at 12:45:50PM +0100, Vlastimil Babka wrote: >> But why, with all the prefetching in place? > > The prefetch is just for its order 0 buddy, if merge happens, then its > order 1 buddy will also be checked and on and on, so the cache miss

[PATCH V2 3/4] clk: add managed version of clk_bulk_get_all

This patch introduces the managed version of clk_bulk_get_all. Cc: Michael Turquette Cc: Stephen Boyd Signed-off-by: Dong Aisheng --- v1->v2: * new patch --- drivers/clk/clk-devres.c | 24 include/linux/clk.h | 23 +++ 2 files changed, 47 inse

[PATCH V2 1/4] clk: bulk: add of_clk_bulk_get()

'clock-names' property is optional in DT, so of_clk_bulk_get() is introduced here to handle this for DT users without 'clock-names' specified. Later clk_bulk_get_all() will be implemented on top of it and this API will be kept private until someone proves they need it because they don't have a stru

[PATCH V2 4/4] video: simplefb: switch to use clk_bulk API to simplify clock operations

Switching to use clk_bulk API to simplify clock operations. Cc: Hans de Goede Cc: Bartlomiej Zolnierkiewicz Cc: linux-fb...@vger.kernel.org Cc: Masahiro Yamada Cc: Stephen Boyd Signed-off-by: Dong Aisheng --- v1->v2: * switch to clk_bulk_get_all from of_clk_bulk_get_all --- drivers/video/fb

[PATCH V2 2/4] clk: add new APIs to operate on all available clocks

This patch introduces of_clk_bulk_get_all and clk_bulk_x_all APIs to users who just want to handle all available clocks from device tree without need to know the detailed clock information likes clock numbers and names. This is useful in writing some generic drivers to handle clock part. Cc: Steph

Re: [PATCH RESEND] rpmsg: Add driver_override device attribute for rpmsg_device

On Mon, Mar 19, 2018 at 4:17 AM, Bjorn Andersson wrote: > On Wed 10 Jan 05:17 PST 2018, Anup Patel wrote: > >> This patch adds "driver_override" device attribute for rpmsg_device which >> will allow users to explicitly specify the rpmsg_driver to be used via >> sysfs entry. >> >> The "driver_overr

Re: [PATCH] mtd: devices: check mtd_device_register() return code

Hi Arushi, On Wed, 21 Mar 2018 11:07:09 +0530, Arushi Singhal wrote: > stfsm_probe() misses error handling of mtd_device_register(). > > Signed-off-by: Arushi Singhal > --- > drivers/mtd/devices/st_spi_fsm.c | 8 +++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/driv

Re: [PATCH] pinctrl: armada-37xx: Add edge both type gpio irq support

On Tue, Mar 20, 2018 at 10:56 PM, Uwe Kleine-König wrote: > Maybe I'm wrong, but I wonder if there could be a set of helper > functions provided by the gpio core that helps implementing this > software simulation of IRQ_TYPE_EDGE_BOTH reliably (i.e. as good as > possible in software) to prevent c

Re: [PATCH RESEND] rpmsg: virtio_rpmsg_bus: fix rpmsg_probe() for virtio-mmio transport

On Mon, Mar 19, 2018 at 4:17 AM, Bjorn Andersson wrote: > On Wed 10 Jan 05:16 PST 2018, Anup Patel wrote: >> diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c >> b/drivers/rpmsg/virtio_rpmsg_bus.c > [..] >> @@ -924,9 +925,16 @@ static int rpmsg_probe(struct virtio_device *vdev) >>

Re: [PATCH v8 7/9] pinctrl: madera: Add DT bindings for Cirrus Logic Madera codecs

On Mon, Feb 26, 2018 at 2:05 PM, Richard Fitzgerald wrote: > This is the binding description of the pinctrl driver for Cirrus Logic > Madera codecs. The binding uses the generic pinctrl binding so the main > purpose here is to describe the device-specific names for groups and > functions. > > Si

Re: [PATCH v2] spi: rspi: use correct enum for DMA transfer direction

Hi Stefan, On Mon, Mar 19, 2018 at 11:16 PM, Stefan Agner wrote: > Use enum dma_transfer_direction as required by dmaengine_prep_slave_sg > instead of enum dma_data_direction. This won't change behavior in > practice as the enum values are equivalent. Thanks for catching! BTW, spi-sh-msiof has

Re: [PATCH v8 8/9] pinctrl: madera: Add driver for Cirrus Logic Madera codecs

On Mon, Feb 26, 2018 at 2:05 PM, Richard Fitzgerald wrote: > These codecs have a variable number of I/O lines each of which > is individually selectable to a wide range of possible functions. > > The functionality is slightly different from the traditional muxed > GPIO since most of the functions

Re: [PATCH 3/3] i2c: mux: pca9541: prepare for PCA9641 support

On 2018-03-21 08:01, Vladimir Zapolskiy wrote: > On 03/21/2018 03:19 AM, Guenter Roeck wrote: >> On 03/20/2018 04:17 PM, Vladimir Zapolskiy wrote: >>> Hi Peter, Ken, >>> >>> On 03/20/2018 11:32 AM, Peter Rosin wrote: Make the arbitrate and release_bus implementation chip specific. >>> >>>

[PATCH 2/4] mm/memblock: introduce memblock_search_pfn_regions()

This api is the preparation for further optimizing early_pfn_valid Signed-off-by: Jia He --- include/linux/memblock.h | 2 ++ mm/memblock.c| 12 2 files changed, 14 insertions(+) diff --git a/include/linux/memblock.h b/include/linux/memblock.h index 9471db4..5f46956 10

[PATCH 1/4] mm: page_alloc: reduce unnecessary binary search in memblock_next_valid_pfn()

Commit b92df1de5d28 ("mm: page_alloc: skip over regions of invalid pfns where possible") optimized the loop in memmap_init_zone(). But there is still some room for improvement. E.g. if pfn and pfn+1 are in the same memblock region, we can simply pfn++ instead of doing the binary search in memblock_

[PATCH RFC 0/4] optimize memblock_next_valid_pfn() and early_pfn_valid()

Commit b92df1de5d28 ("mm: page_alloc: skip over regions of invalid pfns where possible") tried to optimize the loop in memmap_init_zone(). But there is still some room for improvement. Patch 1 optimized the memblock_next_valid_pfn() Patch 2~4 optimized the early_pfn_valid(), I have to split it int

[PATCH 3/4] arm64: introduce pfn_valid_region()

This is the preparation for further optimizing in early_pfn_valid on arm64. Signed-off-by: Jia He --- arch/arm64/include/asm/page.h | 3 ++- arch/arm64/mm/init.c | 19 ++- 2 files changed, 20 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/page.h b/ar

[PATCH 4/4] mm: page_alloc: reduce unnecessary binary search in early_pfn_valid()

Commit b92df1de5d28 ("mm: page_alloc: skip over regions of invalid pfns where possible") optimized the loop in memmap_init_zone(). But there is still some room for improvement. E.g. in early_pfn_valid(), we can record the last returned memblock region index and check check pfn++ is still in the sam

AW: Kontakt

Sehr geehrte Damen und Herren, nach unserem Besuch Ihrer Homepage möchten wir Ihnen ein Angebot von Produkten vorstellen, das Ihnen ermöglichen wird, den Verkauf Ihrer Produkte sowie Dienstleistungen deutlich zu erhöhen. Die Datenbanken der Firmen sind in für Sie interessante und relevante Zi

Re: [PATCH] mm/hugetlb: prevent hugetlb VMA to be misaligned

On 20/03/2018 22:26, Mike Kravetz wrote: > On 03/20/2018 10:25 AM, Laurent Dufour wrote: >> When running the sampler detailed below, the kernel, if built with the VM >> debug option turned on (as many distro do), is panicing with the following >> message : >> kernel BUG at /build/linux-jWa1Fv/linux

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

Hi Andrew, After merging the akpm tree, today's linux-next build (powerpc allyesconfig) failed like this: drivers/base/firmware_loader/fallback.c: In function 'map_fw_priv_pages': drivers/base/firmware_loader/fallback.c:232:2: error: implicit declaration of function 'vunmap'; did you mean 'kunma

Re: [Outreachy kernel] [PATCH] drm/qxl: Replace drm_gem_object_reference/unreference() with _get/put()

On Tue, Mar 20, 2018 at 11:29:27AM -0700, Santha Meena Ramamoorthy wrote: > Replace drm_gem_object_reference/unreference function with *_get/put() > suffixes, because it is shorter and consistent with the kernel > kref_get/put() functions. The following Coccinelle script was used: > > @@ > express

Re: [PATCH] mm/hugetlb: prevent hugetlb VMA to be misaligned

On 20/03/2018 22:35, Mike Kravetz wrote: > On 03/20/2018 02:26 PM, Mike Kravetz wrote: >> Thanks Laurent! >> >> This bug was introduced by 31383c6865a5. Dan's changes for 31383c6865a5 >> seem pretty straight forward. It simply replaces an explicit check when >> splitting a vma to a new vm_ops spl

Re: [PATCH 1/5] bus: arm-cci: use asm unreachable

On 21.03.2018 00:30, Russell King - ARM Linux wrote: > On Wed, Mar 21, 2018 at 12:02:02AM +0100, Stefan Agner wrote: >> Mixing asm and C code is not recommended in a naked function by >> gcc and leads to an error when using clang: >> drivers/bus/arm-cci.c:2107:2: error: non-ASM statement in naked

Re: [patch] mm, thp: do not cause memcg oom for thp

On Tue 20-03-18 13:25:23, David Rientjes wrote: > On Tue, 20 Mar 2018, Michal Hocko wrote: > > > > Commit 2516035499b9 ("mm, thp: remove __GFP_NORETRY from khugepaged and > > > madvised allocations") changed the page allocator to no longer detect thp > > > allocations based on __GFP_NORETRY. > > >

Re: [PATCH 0/1] cover-letter/lz4: Implement lz4 with dynamic offset length.

CC-ing Nick Nick, can you take a look? Message-IDs: lkml.kernel.org/r/1521607242-3968-1-git-send-email-maninder...@samsung.com lkml.kernel.org/r/1521607242-3968-2-git-send-email-maninder...@samsung.com -ss

linux-next: Tree for Mar 21

Hi all, Changes since 20180320: The arm64 tree gained a conflict against the asm-generic tree. The powerpc tree gained a conflict against the asm-generic tree. The sparc-next tree gained a conflict against the arm64 tree. The vfs tree still had its build failure for which I reverted a commit.

Re: [PATCH 1/1] mm/page_owner: fix recursion bug after changing skip entries

On 03/21/2018 05:37 AM, Maninder Singh wrote: > This patch fixes "5f48f0bd4e368425db4424b9afd1bd251d32367a". > (mm, page_owner: skip unnecessary stack_trace entries) > > Because if we skip first two entries then logic of checking count > value as 2 for recursion is broken and code will go in one d

[PATCH] dmaengine: edma: Check the memory allocation for the memcpy dma device

If the allocation fails then disable the memcpy support. Signed-off-by: Peter Ujfalusi --- drivers/dma/edma.c | 6 ++ 1 file changed, 6 insertions(+) diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c index 5b197473106b..519e69e81fca 100644 --- a/drivers/dma/edma.c +++ b/drivers/dma/edma.

Re: [PATCH RESEND v2 1/2] drm/xen-front: Add support for Xen PV display frontend

On 03/20/2018 03:47 PM, Daniel Vetter wrote: On Tue, Mar 20, 2018 at 01:58:01PM +0200, Oleksandr Andrushchenko wrote: On 03/19/2018 05:28 PM, Daniel Vetter wrote: There should be no difference between immediate removal and delayed removal of the drm_device from the xenbus pov. The lifetimes of

Re: [PATCH v9 0/4] fuse: mounts from non-init user namespaces

On Tue, Mar 20, 2018 at 7:27 PM, Eric W. Biederman wrote: > Miklos Szeredi writes: >> I did just one modification to "fuse: Fail all requests with invalid >> uids or gids": instead of zeroing out the context for the nofail case, >> continue to use the "_munged" variants. I don't think this hurts

Re: [PATCH] mm/hugetlb: prevent hugetlb VMA to be misaligned

On Tue 20-03-18 14:35:28, Mike Kravetz wrote: > On 03/20/2018 02:26 PM, Mike Kravetz wrote: > > Thanks Laurent! > > > > This bug was introduced by 31383c6865a5. Dan's changes for 31383c6865a5 > > seem pretty straight forward. It simply replaces an explicit check when > > splitting a vma to a new

Re: [PATCH 3/5] ARM: trusted_foundations: do not use naked function

On 21.03.2018 00:13, Russell King - ARM Linux wrote: > On Wed, Mar 21, 2018 at 12:02:04AM +0100, Stefan Agner wrote: >> As documented in GCC naked functions should only use Basic asm >> syntax. The Extended asm or mixture of Basic asm and "C" code is >> not guaranteed. Currently this works because

[PATCH ghak21 V4 1/2] audit: remove path param from link denied function

In commit 45b578fe4c3cade6f4ca1fc934ce199afd857edc ("audit: link denied should not directly generate PATH record") the need for the struct path *link parameter was removed. Remove the now useless struct path argument. Signed-off-by: Richard Guy Briggs --- fs/namei.c| 4 ++-- include/

  1   2   3   4   5   6   7   8   9   10   >