similar to: [PATCH AUTOSEL 6.6 21/31] vsock: read from socket's error queue

From: Arseniy Krasnov <avkrasnov at salutedevices.com> [ Upstream commit 49dbe25adac42d3e06f65d1420946bec65896222 ] This adds handling of MSG_ERRQUEUE input flag in receive call. This flag is used to read socket's error queue instead of data queue. Possible scenario of error queue usage is receiving completions for transmission with MSG_ZEROCOPY flag. This patch also adds new defines:

From: Arseniy Krasnov <avkrasnov at salutedevices.com> [ Upstream commit 49dbe25adac42d3e06f65d1420946bec65896222 ] This adds handling of MSG_ERRQUEUE input flag in receive call. This flag is used to read socket's error queue instead of data queue. Possible scenario of error queue usage is receiving completions for transmission with MSG_ZEROCOPY flag. This patch also adds new defines:

On Mon, Feb 06, 2023 at 07:06:32AM +0000, Arseniy Krasnov wrote: >To use this option pass '--zc' parameter: --zerocopy or --zero-copy maybe better follow what we did with the other parameters :-) > >./vsock_perf --zc --sender <cid> --port <port> --bytes <bytes to send> > >With this option MSG_ZEROCOPY flag will be passed to the 'send()' call.

On Mon, Feb 06, 2023 at 06:54:51AM +0000, Arseniy Krasnov wrote: >This adds handling of MSG_ERRQUEUE input flag for receive call, thus >skb from socket's error queue is read. A general tip, add a little more description in the commit messages, especially to explain why these changes are necessary. Otherwise, even review becomes difficult because one has to look at all the patches to

On Sun, Sep 03, 2023 at 11:13:23AM +0300, Arseniy Krasnov wrote: > > >On 01.09.2023 15:30, Stefano Garzarella wrote: >> On Sun, Aug 27, 2023 at 11:54:36AM +0300, Arseniy Krasnov wrote: >>> This adds handling of MSG_ZEROCOPY flag on transmission path: if this >>> flag is set and zerocopy transmission is possible (enabled in socket >>> options and transport

On Mon, Feb 06, 2023 at 07:00:35AM +0000, Arseniy Krasnov wrote: >This adds main logic of MSG_ZEROCOPY flag processing for packet >creation. When this flag is set and user's iov iterator fits for >zerocopy transmission, call 'get_user_pages()' and add returned >pages to the newly created skb. > >Signed-off-by: Arseniy Krasnov <AVKrasnov at sberdevices.ru>

On Sun, 2023-07-30 at 11:59 +0300, Arseniy Krasnov wrote: > This is preparation patch for MSG_ZEROCOPY support. It adds handling of > non-linear skbs by replacing direct calls of 'memcpy_to_msg()' with > 'skb_copy_datagram_iter()'. Main advantage of the second one is that it > can handle paged part of the skb by using 'kmap()' on each page, but if > there are

On Sat, Aug 26, 2023 at 08:58:59PM +0300, Arseniy Krasnov wrote: >POSIX requires to send SIGPIPE on write to SOCK_STREAM socket which was >shutdowned with SHUT_WR flag or its peer was shutdowned with SHUT_RD >flag. Also we must not send SIGPIPE if MSG_NOSIGNAL flag is set. > >Signed-off-by: Arseniy Krasnov <avkrasnov at salutedevices.com> >--- > net/vmw_vsock/af_vsock.c

On Sat, Aug 26, 2023 at 08:59:00PM +0300, Arseniy Krasnov wrote: >This adds two tests for 'shutdown()' call. It checks that SIGPIPE is >sent when MSG_NOSIGNAL is not set and vice versa. Both flags SHUT_WR >and SHUT_RD are tested. > >Signed-off-by: Arseniy Krasnov <avkrasnov at salutedevices.com> >--- > tools/testing/vsock/vsock_test.c | 138

On Mon, Feb 06, 2023 at 06:57:16AM +0000, Arseniy Krasnov wrote: >This adds copying to guest's virtio buffers from non-linear skbs. Such >skbs are created by protocol layer when MSG_ZEROCOPY flags is used. > >Signed-off-by: Arseniy Krasnov <AVKrasnov at sberdevices.ru> >--- > drivers/vhost/vsock.c | 56 ++++++++++++++++++++++++++++++++---- >

I want to compile tftp-hpa on libc5 because we have many systems still using this library. There were some constants missing that i copied from glibc-2.1 headers, and now I'm left with this and I don't know what to do since all I can do is copy/paste, not touch real code :-) === gcc -O2 -m486 -fno-strength-reduce -D_XPG4_2 -D_XOPEN_SOURCE -D__EXTENSIONS__ -D_BSD_SOURCE -D_ISO9X_SOURCE

On Tue, 2023-08-01 at 16:36 +0300, Arseniy Krasnov wrote: > > On 01.08.2023 16:34, Paolo Abeni wrote: > > On Sun, 2023-07-30 at 11:59 +0300, Arseniy Krasnov wrote: > > > +static int virtio_transport_fill_skb(struct sk_buff *skb, > > > + struct virtio_vsock_pkt_info *info, > > > + size_t len, > > > + bool zcopy) > > >

On Sun, 2023-07-30 at 11:59 +0300, Arseniy Krasnov wrote: > +static int virtio_transport_fill_skb(struct sk_buff *skb, > + struct virtio_vsock_pkt_info *info, > + size_t len, > + bool zcopy) > +{ > + if (zcopy) { > + return __zerocopy_sg_from_iter(info->msg, NULL, skb, > + &info->msg->msg_iter, > + len); > + }

hello hpa, here my birthday submission :) please pull: git pull git://git.debian.org/users/maks/klibc.git maks Sam fixed a longstanding x86_32 build bug, thus it seems a good time to flush the queue of the piled up patches, the shortlog tells it: Aurelien Jarno (1): [klibc] sh4: syscalls fixes Benjamin Cama (1): [klibc] fstype: btrfs size endianness fix Mike Waychison (2):

Hi I've found that openssh-3.2.2p1 can't be compiled on my Linux 2.0.36, because it doesn't define CMSG_DATA and CMSG_FIRSTHDR in <linux/socket.h>. The patch below solved this problem. Regards, NIDE Maoyuki, nide at ics.nara-wu.ac.jp ------------------------------------------------------------------------ diff -ru openssh-3.2.2p1.orig/defines.h openssh-3.2.2p1/defines.h

Will this perhaps fix these? imap-login: Jun 15 12:28:16 Panic: file ioloop.c: line 90: assertion failed: (i o->fd <= current_ioloop->highest_fd) dovecot: Jun 15 12:28:16 Error: child 17987 (login) killed with signal 6 imap-login: Jun 15 13:14:58 Panic: file ioloop.c: line 90: assertion failed: (i o->fd <= current_ioloop->highest_fd) dovecot: Jun 15 13:14:58 Error: child 13002

On 5/31/19 11:01 AM, Richard W.M. Jones wrote: > This is a continuation of a discussion we were having on IRC. The > problems with IRC are it's not recorded and it's hard to have deep > technical conversations. I hope this is a decent summary. > > Problem simply stated: Certain NBD servers (qemu-nbd in particular) Also nbdkit for a plugin with

This header file now only includes the "uapi/linux/vm_sockets.h". We can include directly it when needed. Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- include/linux/vm_sockets.h | 13 ------------- include/net/af_vsock.h | 2 +- include/net/vsock_addr.h | 2 +- net/vmw_vsock/vmci_transport_notify.h | 1 - 4 files

This header file now only includes the "uapi/linux/vm_sockets.h". We can include directly it when needed. Reviewed-by: Stefan Hajnoczi <stefanha at redhat.com> Signed-off-by: Stefano Garzarella <sgarzare at redhat.com> --- include/linux/vm_sockets.h | 13 ------------- include/net/af_vsock.h | 2 +- include/net/vsock_addr.h | 2 +-

Split the vSockets header into kernel and UAPI parts. The former gets the bits that used to be in __KERNEL__ guards, while the latter gets everything that is user-visible. Tested by compiling vsock (+transport) and a simple user-mode vSockets application. Reported-by: David Howells <dhowells at redhat.com> Acked-by: Dmitry Torokhov <dtor at vmware.com> Signed-off-by: Andy King