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
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_THREAD_MAP_H
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#define __PERF_THREAD_MAP_H
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#include <sys/types.h>
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#include <stdio.h>
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#include <linux/refcount.h>
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struct thread_map_data {
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pid_t pid;
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char *comm;
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};
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struct thread_map {
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refcount_t refcnt;
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int nr;
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int err_thread;
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struct thread_map_data map[];
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};
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struct thread_map_event;
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struct thread_map *thread_map__new_dummy(void);
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struct thread_map *thread_map__new_by_pid(pid_t pid);
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struct thread_map *thread_map__new_by_tid(pid_t tid);
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struct thread_map *thread_map__new_by_uid(uid_t uid);
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struct thread_map *thread_map__new_all_cpus(void);
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struct thread_map *thread_map__new(pid_t pid, pid_t tid, uid_t uid);
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struct thread_map *thread_map__new_event(struct thread_map_event *event);
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struct thread_map *thread_map__get(struct thread_map *map);
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void thread_map__put(struct thread_map *map);
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struct thread_map *thread_map__new_str(const char *pid,
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const char *tid, uid_t uid, bool all_threads);
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struct thread_map *thread_map__new_by_tid_str(const char *tid_str);
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size_t thread_map__fprintf(struct thread_map *threads, FILE *fp);
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static inline int thread_map__nr(struct thread_map *threads)
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{
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return threads ? threads->nr : 1;
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}
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static inline pid_t thread_map__pid(struct thread_map *map, int thread)
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{
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return map->map[thread].pid;
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}
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static inline void
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thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
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{
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map->map[thread].pid = pid;
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}
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static inline char *thread_map__comm(struct thread_map *map, int thread)
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{
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return map->map[thread].comm;
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}
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void thread_map__read_comms(struct thread_map *threads);
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bool thread_map__has(struct thread_map *threads, pid_t pid);
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int thread_map__remove(struct thread_map *threads, int idx);
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#endif /* __PERF_THREAD_MAP_H */
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