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#ifndef __NET_GENEVE_H
#define __NET_GENEVE_H  1

#include <net/udp_tunnel.h>

/* Geneve Header:
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |Ver|  Opt Len  |O|C|    Rsvd.  |          Protocol Type        |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |        Virtual Network Identifier (VNI)       |    Reserved   |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |                    Variable Length Options                    |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *
 * Option Header:
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |          Option Class         |      Type     |R|R|R| Length  |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 *  |                      Variable Option Data                     |
 *  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 */

struct geneve_opt {
	__be16	opt_class;
	u8	type;
#ifdef __LITTLE_ENDIAN_BITFIELD
	u8	length:5;
	u8	r3:1;
	u8	r2:1;
	u8	r1:1;
#else
	u8	r1:1;
	u8	r2:1;
	u8	r3:1;
	u8	length:5;
#endif
	u8	opt_data[];
};

#define GENEVE_CRIT_OPT_TYPE (1 << 7)

struct genevehdr {
#ifdef __LITTLE_ENDIAN_BITFIELD
	u8 opt_len:6;
	u8 ver:2;
	u8 rsvd1:6;
	u8 critical:1;
	u8 oam:1;
#else
	u8 ver:2;
	u8 opt_len:6;
	u8 oam:1;
	u8 critical:1;
	u8 rsvd1:6;
#endif
	__be16 proto_type;
	u8 vni[3];
	u8 rsvd2;
	struct geneve_opt options[];
};

#ifdef CONFIG_INET
struct net_device *geneve_dev_create_fb(struct net *net, const char *name,
					u8 name_assign_type, u16 dst_port);
#endif /*ifdef CONFIG_INET */

#endif /*ifdef__NET_GENEVE_H */
(blk_mq_timeout_work). Sample stack trace: __switch_to+0x2c0/0x450 __schedule+0x2f8/0x970 schedule+0x48/0xc0 blk_mq_freeze_queue_wait+0x94/0x120 blk_mq_queue_reinit_work+0xb8/0x180 blk_mq_queue_reinit_prepare+0x84/0xa0 cpuhp_invoke_callback+0x17c/0x600 cpuhp_up_callbacks+0x58/0x150 _cpu_up+0xf0/0x1c0 do_cpu_up+0x120/0x150 cpu_subsys_online+0x64/0xe0 device_online+0xb4/0x120 online_store+0xb4/0xc0 dev_attr_store+0x68/0xa0 sysfs_kf_write+0x80/0xb0 kernfs_fop_write+0x17c/0x250 __vfs_write+0x6c/0x1e0 vfs_write+0xd0/0x270 SyS_write+0x6c/0x110 system_call+0x38/0xe0 Examination of the queue showed a single reference (no PERCPU_COUNT_BIAS, and __PERCPU_REF_DEAD, __PERCPU_REF_ATOMIC set) and no requests. However, conditions at the time of the race are count of PERCPU_COUNT_BIAS + 0 and __PERCPU_REF_DEAD and __PERCPU_REF_ATOMIC set. The fix is to make the tryget routines use an actual boolean internally instead of the atomic long result truncated to a int. Fixes: e625305b3907 percpu-refcount: make percpu_ref based on longs instead of ints Link: https://bugzilla.kernel.org/show_bug.cgi?id=190751 Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com> Reviewed-by: Jens Axboe <axboe@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: e625305b3907 ("percpu-refcount: make percpu_ref based on longs instead of ints") Cc: stable@vger.kernel.org # v3.18+
Diffstat (limited to 'tools/testing/selftests/powerpc/ptrace/.gitignore')