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Revision 21f1b8a6636c4dbde4aa1ec0343f42eaf653ffcc authored by Paolo Abeni on 26 April 2019, 10:50:44 UTC, committed by David S. Miller on 28 April 2019, 02:07:24 UTC 
udp: fix GRO reception in case of length mismatch
 
Currently, the UDP GRO code path does bad things on some edge
conditions - Aggregation can happen even on packet with different
lengths.

Fix the above by rewriting the 'complete' condition for GRO
packets. While at it, note explicitly that we allow merging the
first packet per burst below gso_size.

Reported-by: Sean Tong <seantong114@gmail.com>
Fixes: e20cf8d3f1f7 ("udp: implement GRO for plain UDP sockets.")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent fbef947
Raw File
cls_lock_client.h 
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_CEPH_CLS_LOCK_CLIENT_H
#define _LINUX_CEPH_CLS_LOCK_CLIENT_H

#include <linux/ceph/osd_client.h>

enum ceph_cls_lock_type {
	CEPH_CLS_LOCK_NONE = 0,
	CEPH_CLS_LOCK_EXCLUSIVE = 1,
	CEPH_CLS_LOCK_SHARED = 2,
};

struct ceph_locker_id {
	struct ceph_entity_name name;	/* locker's client name */
	char *cookie;			/* locker's cookie */
};

struct ceph_locker_info {
	struct ceph_entity_addr addr;	/* locker's address */
};

struct ceph_locker {
	struct ceph_locker_id id;
	struct ceph_locker_info info;
};

int ceph_cls_lock(struct ceph_osd_client *osdc,
		  struct ceph_object_id *oid,
		  struct ceph_object_locator *oloc,
		  char *lock_name, u8 type, char *cookie,
		  char *tag, char *desc, u8 flags);
int ceph_cls_unlock(struct ceph_osd_client *osdc,
		    struct ceph_object_id *oid,
		    struct ceph_object_locator *oloc,
		    char *lock_name, char *cookie);
int ceph_cls_break_lock(struct ceph_osd_client *osdc,
			struct ceph_object_id *oid,
			struct ceph_object_locator *oloc,
			char *lock_name, char *cookie,
			struct ceph_entity_name *locker);
int ceph_cls_set_cookie(struct ceph_osd_client *osdc,
			struct ceph_object_id *oid,
			struct ceph_object_locator *oloc,
			char *lock_name, u8 type, char *old_cookie,
			char *tag, char *new_cookie);

void ceph_free_lockers(struct ceph_locker *lockers, u32 num_lockers);

int ceph_cls_lock_info(struct ceph_osd_client *osdc,
		       struct ceph_object_id *oid,
		       struct ceph_object_locator *oloc,
		       char *lock_name, u8 *type, char **tag,
		       struct ceph_locker **lockers, u32 *num_lockers);

#endif
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