Re: [PATCH v2 04/12] axonrom: Generate uevent after attribute available

On Thu, 06/30 15:10, Dan Williams wrote: > On Wed, Jun 29, 2016 at 6:59 PM, Fam Zheng wrote: > > It is documented that KOBJ_ADD should be generated after the object's > > attributes and children are ready. We can achieve this with the new > > disk_gen_uevents interface. > > > >

Re: [PATCH v2 00/12] gendisk: Generate uevent after attribute available

On Wed, 06/29 23:38, Christoph Hellwig wrote: > On Thu, Jun 30, 2016 at 02:35:54PM +0800, Fam Zheng wrote: > > also more code and less flexible IMO. For example, we need at least two > > variants, for attribute_group and device_attribute separately, right? > > Yes, or maybe just a calling

Re: [PATCH net-next V4 0/6] switch to use tx skb array in tun

On Thu, Jun 30, 2016 at 02:45:30PM +0800, Jason Wang wrote: > Hi all: > > This series tries to switch to use skb array in tun. This is used to > eliminate the spinlock contention between producer and consumer. The > conversion was straightforward: just introdce a tx skb array and use > it instead

[PATCH net-next V4 6/6] tun: switch to use skb array for tx

We used to queue tx packets in sk_receive_queue, this is less efficient since it requires spinlocks to synchronize between producer and consumer. This patch tries to address this by: - switch from sk_receive_queue to a skb_array, and resize it when tx_queue_len was changed. - introduce a new

[PATCH net-next V4 5/6] net: introduce NETDEV_CHANGE_TX_QUEUE_LEN

This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this will be triggered when tx_queue_len. It could be used by net device who want to do some processing at that time. An example is tun who may want to resize tx array when tx_queue_len is changed. Cc: John Fastabend

[PATCH net-next V4 0/6] switch to use tx skb array in tun

Hi all: This series tries to switch to use skb array in tun. This is used to eliminate the spinlock contention between producer and consumer. The conversion was straightforward: just introdce a tx skb array and use it instead of sk_receive_queue. A minor issue is to keep the tx_queue_len

[PATCH net-next V4 2/6] skb_array: minor tweak

Signed-off-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- include/linux/skb_array.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h index 678bfbf..2dd0d1e 100644 ---

[PATCH net-next V4 3/6] ptr_ring: support resizing multiple queues

From: "Michael S. Tsirkin" Sometimes, we need support resizing multiple queues at once. This is because it was not easy to recover to recover from a partial failure of multiple queues resizing. Signed-off-by: Michael S. Tsirkin Signed-off-by: Jason Wang

[PATCH net-next V4 4/6] skb_array: add wrappers for resizing

Signed-off-by: Michael S. Tsirkin Signed-off-by: Jason Wang --- include/linux/skb_array.h | 9 + 1 file changed, 9 insertions(+) diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h index 2dd0d1e..f4dfade 100644 ---

[PATCH net-next V4 1/6] ptr_ring: support zero length ring

Sometimes, we need zero length ring. But current code will crash since we don't do any check before accessing the ring. This patch fixes this. Signed-off-by: Jason Wang --- include/linux/ptr_ring.h | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git

Re: [PATCH net-next V3 5/6] net: introduce NETDEV_CHANGE_TX_QUEUE_LEN

On 2016年06月30日 13:59, Jason Wang wrote: On 2016年06月30日 13:12, Jason Wang wrote: On 2016年06月30日 12:56, John Fastabend wrote: On 16-06-29 08:52 PM, Jason Wang wrote: This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this will be triggered when tx_queue_len. It could be used

Re: [PATCH v2 00/12] gendisk: Generate uevent after attribute available

On Thu, Jun 30, 2016 at 02:35:54PM +0800, Fam Zheng wrote: > also more code and less flexible IMO. For example, we need at least two > variants, for attribute_group and device_attribute separately, right? Yes, or maybe just a calling convention that just passes both.

Re: [PATCH v2 00/12] gendisk: Generate uevent after attribute available

On Wed, 06/29 23:24, Christoph Hellwig wrote: > On Thu, Jun 30, 2016 at 09:59:41AM +0800, Fam Zheng wrote: > > Documentation/kobject.txt: > > > Use the KOBJ_ADD action for when the kobject is first added to the kernel. > > > This should be done only after any attributes or children of the kobject

[PATCH] tun: fix semicolon.cocci warnings

drivers/net/tun.c:1476:2-3: Unneeded semicolon Remove unneeded semicolon. Generated by: scripts/coccinelle/misc/semicolon.cocci CC: Jason Wang Signed-off-by: Fengguang Wu --- tun.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) ---

Re: [PATCH net-next V3 6/6] tun: switch to use skb array for tx

Hi, [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Jason-Wang/switch-to-use-tx-skb-array-in-tun/20160630-120656 coccinelle warnings: (new ones prefixed by >>) >> drivers/net/tun.c:1476:2-3: Unneeded semicolon Please review and p

Re: [PATCH v6v3 02/12] mm: migrate: support non-lru movable page migration

On Thu, Jun 30, 2016 at 11:26:45AM +0530, Anshuman Khandual wrote: > >> Did you get a chance to test the driver out ? I am still concerned about > >> how to > >> handle the struct address_space override problem within the struct page. > > > > Hi Anshuman, > > > > Slow but I am working on

Re: [PATCH net-next V3 5/6] net: introduce NETDEV_CHANGE_TX_QUEUE_LEN

On 2016年06月30日 13:12, Jason Wang wrote: On 2016年06月30日 12:56, John Fastabend wrote: On 16-06-29 08:52 PM, Jason Wang wrote: This patch introduces a new event - NETDEV_CHANGE_TX_QUEUE_LEN, this will be triggered when tx_queue_len. It could be used by net device who want to do some