16c00db4bb
Pull AFS fixes from David Howells:
"Here's a set of patches that fix a number of bugs in the in-kernel AFS
client, including:
- Fix directory locking to not use individual page locks for
directory reading/scanning but rather to use a semaphore on the
afs_vnode struct as the directory contents must be read in a single
blob and data from different reads must not be mixed as the entire
contents may be shuffled about between reads.
- Fix address list parsing to handle port specifiers correctly.
- Only give up callback records on a server if we actually talked to
that server (we might not be able to access a server).
- Fix some callback handling bugs, including refcounting,
whole-volume callbacks and when callbacks actually get broken in
response to a CB.CallBack op.
- Fix some server/address rotation bugs, including giving up if we
can't probe a server; giving up if a server says it doesn't have a
volume, but there are more servers to try.
- Fix the decoding of fetched statuses to be OpenAFS compatible.
- Fix the handling of server lookups in Cache Manager ops (such as
CB.InitCallBackState3) to use a UUID if possible and to handle no
server being found.
- Fix a bug in server lookup where not all addresses are compared.
- Fix the non-encryption of calls that prevents some servers from
being accessed (this also requires an AF_RXRPC patch that has
already gone in through the net tree).
There's also a patch that adds tracepoints to log Cache Manager ops
that don't find a matching server, either by UUID or by address"
* tag 'afs-fixes-20180514' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix the non-encryption of calls
afs: Fix CB.CallBack handling
afs: Fix whole-volume callback handling
afs: Fix afs_find_server search loop
afs: Fix the handling of an unfound server in CM operations
afs: Add a tracepoint to record callbacks from unlisted servers
afs: Fix the handling of CB.InitCallBackState3 to find the server by UUID
afs: Fix VNOVOL handling in address rotation
afs: Fix AFSFetchStatus decoder to provide OpenAFS compatibility
afs: Fix server rotation's handling of fileserver probe failure
afs: Fix refcounting in callback registration
afs: Fix giving up callbacks on server destruction
afs: Fix address list parsing
afs: Fix directory page locking
108 lines
2.1 KiB
C
108 lines
2.1 KiB
C
/*
|
|
* SPDX-License-Identifier: GPL-2.0
|
|
*
|
|
* Copyright(C) 2015-2018 Linaro Limited.
|
|
*
|
|
* Author: Tor Jeremiassen <tor@ti.com>
|
|
* Author: Mathieu Poirier <mathieu.poirier@linaro.org>
|
|
*/
|
|
|
|
#ifndef INCLUDE__CS_ETM_DECODER_H__
|
|
#define INCLUDE__CS_ETM_DECODER_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <stdio.h>
|
|
|
|
struct cs_etm_decoder;
|
|
|
|
struct cs_etm_buffer {
|
|
const unsigned char *buf;
|
|
size_t len;
|
|
u64 offset;
|
|
u64 ref_timestamp;
|
|
};
|
|
|
|
enum cs_etm_sample_type {
|
|
CS_ETM_RANGE = 1 << 0,
|
|
CS_ETM_TRACE_ON = 1 << 1,
|
|
};
|
|
|
|
struct cs_etm_packet {
|
|
enum cs_etm_sample_type sample_type;
|
|
u64 start_addr;
|
|
u64 end_addr;
|
|
u8 last_instr_taken_branch;
|
|
u8 exc;
|
|
u8 exc_ret;
|
|
int cpu;
|
|
};
|
|
|
|
struct cs_etm_queue;
|
|
|
|
typedef u32 (*cs_etm_mem_cb_type)(struct cs_etm_queue *, u64,
|
|
size_t, u8 *);
|
|
|
|
struct cs_etmv4_trace_params {
|
|
u32 reg_idr0;
|
|
u32 reg_idr1;
|
|
u32 reg_idr2;
|
|
u32 reg_idr8;
|
|
u32 reg_configr;
|
|
u32 reg_traceidr;
|
|
};
|
|
|
|
struct cs_etm_trace_params {
|
|
int protocol;
|
|
union {
|
|
struct cs_etmv4_trace_params etmv4;
|
|
};
|
|
};
|
|
|
|
struct cs_etm_decoder_params {
|
|
int operation;
|
|
void (*packet_printer)(const char *msg);
|
|
cs_etm_mem_cb_type mem_acc_cb;
|
|
u8 formatted;
|
|
u8 fsyncs;
|
|
u8 hsyncs;
|
|
u8 frame_aligned;
|
|
void *data;
|
|
};
|
|
|
|
/*
|
|
* The following enums are indexed starting with 1 to align with the
|
|
* open source coresight trace decoder library.
|
|
*/
|
|
enum {
|
|
CS_ETM_PROTO_ETMV3 = 1,
|
|
CS_ETM_PROTO_ETMV4i,
|
|
CS_ETM_PROTO_ETMV4d,
|
|
};
|
|
|
|
enum {
|
|
CS_ETM_OPERATION_PRINT = 1,
|
|
CS_ETM_OPERATION_DECODE,
|
|
};
|
|
|
|
int cs_etm_decoder__process_data_block(struct cs_etm_decoder *decoder,
|
|
u64 indx, const u8 *buf,
|
|
size_t len, size_t *consumed);
|
|
|
|
struct cs_etm_decoder *
|
|
cs_etm_decoder__new(int num_cpu,
|
|
struct cs_etm_decoder_params *d_params,
|
|
struct cs_etm_trace_params t_params[]);
|
|
|
|
void cs_etm_decoder__free(struct cs_etm_decoder *decoder);
|
|
|
|
int cs_etm_decoder__add_mem_access_cb(struct cs_etm_decoder *decoder,
|
|
u64 start, u64 end,
|
|
cs_etm_mem_cb_type cb_func);
|
|
|
|
int cs_etm_decoder__get_packet(struct cs_etm_decoder *decoder,
|
|
struct cs_etm_packet *packet);
|
|
|
|
int cs_etm_decoder__reset(struct cs_etm_decoder *decoder);
|
|
|
|
#endif /* INCLUDE__CS_ETM_DECODER_H__ */
|