/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2011 Daniel Borkmann, rewritten
 * Copyright 1991-2007 Kawahara Lab., Kyoto University
 * Copyright 2000-2005 Shikano Lab., Nara Institute of Science and Technology
 * Copyright 2005-2007 Julius project team, Nagoya Institute of Technology
 * All rights reserved
 * Subject to the GPL, version 2.
 */

#ifndef PATRICIA_H
#define PATRICIA_H

#include <netinet/in.h>

#include "built_in.h"

struct patricia_node {
	void *key;
	size_t klen;
	struct sockaddr_storage *addr;
	size_t alen;
	union {
		int data;
		int thres_bit;
	} value;
	struct patricia_node *l, *r;
} __cacheline_aligned;

extern int ptree_search_data_nearest(void *str, size_t sstr,
				     struct sockaddr_storage *addr, size_t *alen,
				     struct patricia_node *root);
extern int ptree_search_data_exact(void *str, size_t sstr,
				   struct sockaddr_storage *addr, size_t *alen,
				   struct patricia_node *root);
extern int ptree_add_entry(void *str, size_t sstr, int data,
			   struct sockaddr_storage *addr, size_t alen,
			   struct patricia_node **root);
extern void ptree_del_entry(void *str, size_t sstr,
			    struct patricia_node **root);
extern void ptree_get_key(int data, struct patricia_node *node,
			  struct patricia_node **wanted);
extern void ptree_get_key_addr(struct sockaddr_storage *addr, size_t alen,
			       struct patricia_node *node,
			       struct patricia_node **wanted);
extern void ptree_display(struct patricia_node *node, int level);
extern void ptree_free(struct patricia_node *root);

#endif /* PATRICIA_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=433e19cf33d34bb6751c874a9c00980552fe508c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/security?id=433e19cf33d34bb6751c874a9c00980552fe508c'>security</a>/<a href='/cgit.cgi/linux/net-next.git/commit/security/selinux?id=433e19cf33d34bb6751c874a9c00980552fe508c'>selinux</a>/<a href='/cgit.cgi/linux/net-next.git/commit/security/selinux/ss?id=433e19cf33d34bb6751c874a9c00980552fe508c'>ss</a>/<a href='/cgit.cgi/linux/net-next.git/commit/security/selinux/ss/status.c?id=433e19cf33d34bb6751c874a9c00980552fe508c'>status.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='433e19cf33d34bb6751c874a9c00980552fe508c'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Dexuan Cui &lt;decui@microsoft.com&gt;</td><td class='right'>2017-01-28 11:46:02 -0700</td></tr>
<tr><th>committer</th><td>Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;</td><td class='right'>2017-01-31 10:59:48 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/security/selinux/ss/status.c?id=433e19cf33d34bb6751c874a9c00980552fe508c'>433e19cf33d34bb6751c874a9c00980552fe508c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/security/selinux/ss/status.c?id=433e19cf33d34bb6751c874a9c00980552fe508c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=433e19cf33d34bb6751c874a9c00980552fe508c'>ce6547ef2987fbb289fa28f03536328a42781651</a> /<a href='/cgit.cgi/linux/net-next.git/tree/security/selinux/ss/status.c?id=433e19cf33d34bb6751c874a9c00980552fe508c'>security/selinux/ss/status.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/security/selinux/ss/status.c?id=191e885a2e130e639bb0c8ee350d7047294f2ce6'>191e885a2e130e639bb0c8ee350d7047294f2ce6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/security/selinux/ss/status.c?id=433e19cf33d34bb6751c874a9c00980552fe508c&amp;id2=191e885a2e130e639bb0c8ee350d7047294f2ce6'>diff</a>)</td></tr></table>
<div class='commit-subject'>Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()</div><div class='commit-msg'>Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")
added the proper mb(), but removed the test "prev_write_sz &lt; pending_sz"
when making the signal decision.

As a result, the guest can signal the host unnecessarily,
and then the host can throttle the guest because the host
thinks the guest is buggy or malicious; finally the user
running stress test can perceive intermittent freeze of
the guest.

This patch brings back the test, and properly handles the
in-place consumption APIs used by NetVSC (see get_next_pkt_raw(),
put_pkt_raw() and commit_rd_index()).

Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")

Signed-off-by: Dexuan Cui &lt;decui@microsoft.com&gt;
Reported-by: Rolf Neugebauer &lt;rolf.neugebauer@docker.com&gt;
Tested-by: Rolf Neugebauer &lt;rolf.neugebauer@docker.com&gt;
Cc: "K. Y. Srinivasan" &lt;kys@microsoft.com&gt;
Cc: Haiyang Zhang &lt;haiyangz@microsoft.com&gt;
Cc: Stephen Hemminger &lt;sthemmin@microsoft.com&gt;
Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: K. Y. Srinivasan &lt;kys@microsoft.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=433e19cf33d34bb6751c874a9c00980552fe508c'>Diffstat</a> (limited to 'security/selinux/ss/status.c')</div><table summary='diffstat' class='diffstat'>