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linux/include/xen
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SeongJae Park 85597c4369 xen/xenbus: Count pending messages for each watch 
commit 3dc86ca6b4 upstream.

This commit adds a counter of pending messages for each watch in the
struct.  It is used to skip unnecessary pending messages lookup in
'unregister_xenbus_watch()'.  It could also be used in 'will_handle'
callback.

This is part of XSA-349

Cc: stable@vger.kernel.org
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reported-by: Michael Kurth <mku@amazon.de>
Reported-by: Pawel Wieczorkiewicz <wipawel@amazon.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-30 11:26:17 +01:00
..
arm License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
interface Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2018-08-18 16:48:07 -07:00
acpi.h
balloon.h Revert "xen/balloon: Mark unallocated host memory as UNUSABLE" 2018-12-17 09:24:39 +01:00
events.h xen/events: add a new "late EOI" evtchn framework 2020-11-05 11:08:36 +01:00
features.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
grant_table.h xen/grant-table: Allow allocating buffers suitable for DMA 2018-07-26 23:05:14 -04:00
hvc-console.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hvm.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mem-reservation.h xen/balloon: add runtime control for scrubbing ballooned out pages 2018-09-14 08:51:10 -04:00
page.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
platform_pci.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
swiotlb-xen.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tmem.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xen-ops.h CONFIG_XEN_PV breaks xen_create_contiguous_region on ARM 2018-11-21 09:19:28 +01:00
xen.h xen: share start flags between PV and PVH 2018-06-19 13:51:00 +02:00
xenbus_dev.h
xenbus.h xen/xenbus: Count pending messages for each watch 2020-12-30 11:26:17 +01:00