[PATCH 0/3] xen: optimize xenbus performance

From	Juergen Gross <jgross@suse.com>
Newsgroups	linux.kernel
Subject	[PATCH 0/3] xen: optimize xenbus performance
Date	2017-01-06 16:10 +0100
Message-ID	<sWEjv-3EM-9@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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The xenbus driver used for communication with Xenstore (all kernel
accesses to Xenstore and in case of Xenstore living in another domain
all accesses of the local domain to Xenstore) is rather simple
especially regarding multiple concurrent accesses: they are just being
serialized in spite of Xenstore being capable to handle multiple
parallel accesses.

Clean up the external interface(s) of xenbus and optimize its
performance by allowing multiple concurrent accesses to Xenstore.

Juergen Gross (3):
  xen: clean up xenbus internal headers
  xen: modify xenstore watch event interface
  xen: optimize xenbus driver for multiple concurrent xenstore accesses

 drivers/block/xen-blkback/xenbus.c         |   6 +-
 drivers/net/xen-netback/xenbus.c           |   8 +-
 drivers/xen/cpu_hotplug.c                  |   5 +-
 drivers/xen/manage.c                       |   6 +-
 drivers/xen/xen-balloon.c                  |   2 +-
 drivers/xen/xen-pciback/xenbus.c           |   2 +-
 drivers/xen/xenbus/xenbus.h                | 134 ++++++++
 drivers/xen/xenbus/xenbus_client.c         |   6 +-
 drivers/xen/xenbus/xenbus_comms.c          | 319 +++++++++++++++--
 drivers/xen/xenbus/xenbus_comms.h          |  51 ---
 drivers/xen/xenbus/xenbus_dev_backend.c    |   2 +-
 drivers/xen/xenbus/xenbus_dev_frontend.c   | 213 +++++++-----
 drivers/xen/xenbus/xenbus_probe.c          |  14 +-
 drivers/xen/xenbus/xenbus_probe.h          |  88 -----
 drivers/xen/xenbus/xenbus_probe_backend.c  |  11 +-
 drivers/xen/xenbus/xenbus_probe_frontend.c |  17 +-
 drivers/xen/xenbus/xenbus_xs.c             | 535 +++++++++++++----------------
 drivers/xen/xenfs/super.c                  |   2 +-
 drivers/xen/xenfs/xenstored.c              |   2 +-
 include/xen/xenbus.h                       |  18 +-
 20 files changed, 830 insertions(+), 611 deletions(-)
 create mode 100644 drivers/xen/xenbus/xenbus.h
 delete mode 100644 drivers/xen/xenbus/xenbus_comms.h
 delete mode 100644 drivers/xen/xenbus/xenbus_probe.h

Cc: konrad.wilk@oracle.com
Cc: roger.pau@citrix.com
Cc: wei.liu2@citrix.com
Cc: paul.durrant@citrix.com
Cc: netdev@vger.kernel.org

-- 
2.10.2

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[PATCH 0/3] xen: optimize xenbus performance Juergen Gross <jgross@suse.com> - 2017-01-06 16:10 +0100
  [PATCH 2/3] xen: modify xenstore watch event interface Juergen Gross <jgross@suse.com> - 2017-01-06 16:10 +0100
    RE: [PATCH 2/3] xen: modify xenstore watch event interface Paul Durrant <Paul.Durrant@citrix.com> - 2017-01-06 16:40 +0100
    Re: [PATCH 2/3] xen: modify xenstore watch event interface Wei Liu <wei.liu2@citrix.com> - 2017-01-06 17:30 +0100
    Re: [PATCH 2/3] xen: modify xenstore watch event interface Roger Pau Monné <roger.pau@citrix.com> - 2017-01-06 17:40 +0100
    Re: [PATCH 2/3] xen: modify xenstore watch event interface Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-06 23:40 +0100
      Re: [PATCH 2/3] xen: modify xenstore watch event interface Juergen Gross <jgross@suse.com> - 2017-01-09 08:20 +0100
  Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-09 22:20 +0100
    Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Juergen Gross <jgross@suse.com> - 2017-01-10 07:20 +0100
      Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-10 17:40 +0100
      Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-10 17:40 +0100
        Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Juergen Gross <jgross@suse.com> - 2017-01-10 17:50 +0100
  Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-10 20:20 +0100
  Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-11 00:00 +0100
    Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Juergen Gross <jgross@suse.com> - 2017-01-11 06:30 +0100
      Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-01-11 16:40 +0100
        Re: [PATCH 3/3] xen: optimize xenbus driver for multiple concurrent  xenstore accesses Juergen Gross <jgross@suse.com> - 2017-01-11 18:00 +0100

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