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
76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_TESTS__HISTS_COMMON_H__
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#define __PERF_TESTS__HISTS_COMMON_H__
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struct machine;
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struct machines;
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#define FAKE_PID_PERF1 100
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#define FAKE_PID_PERF2 200
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#define FAKE_PID_BASH 300
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#define FAKE_MAP_PERF 0x400000
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#define FAKE_MAP_BASH 0x400000
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#define FAKE_MAP_LIBC 0x500000
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#define FAKE_MAP_KERNEL 0xf00000
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#define FAKE_MAP_LENGTH 0x100000
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#define FAKE_SYM_OFFSET1 700
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#define FAKE_SYM_OFFSET2 800
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#define FAKE_SYM_OFFSET3 900
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#define FAKE_SYM_LENGTH 100
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#define FAKE_IP_PERF_MAIN FAKE_MAP_PERF + FAKE_SYM_OFFSET1
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#define FAKE_IP_PERF_RUN_COMMAND FAKE_MAP_PERF + FAKE_SYM_OFFSET2
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#define FAKE_IP_PERF_CMD_RECORD FAKE_MAP_PERF + FAKE_SYM_OFFSET3
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#define FAKE_IP_BASH_MAIN FAKE_MAP_BASH + FAKE_SYM_OFFSET1
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#define FAKE_IP_BASH_XMALLOC FAKE_MAP_BASH + FAKE_SYM_OFFSET2
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#define FAKE_IP_BASH_XFREE FAKE_MAP_BASH + FAKE_SYM_OFFSET3
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#define FAKE_IP_LIBC_MALLOC FAKE_MAP_LIBC + FAKE_SYM_OFFSET1
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#define FAKE_IP_LIBC_FREE FAKE_MAP_LIBC + FAKE_SYM_OFFSET2
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#define FAKE_IP_LIBC_REALLOC FAKE_MAP_LIBC + FAKE_SYM_OFFSET3
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#define FAKE_IP_KERNEL_SCHEDULE FAKE_MAP_KERNEL + FAKE_SYM_OFFSET1
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#define FAKE_IP_KERNEL_PAGE_FAULT FAKE_MAP_KERNEL + FAKE_SYM_OFFSET2
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#define FAKE_IP_KERNEL_SYS_PERF_EVENT_OPEN FAKE_MAP_KERNEL + FAKE_SYM_OFFSET3
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/*
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* The setup_fake_machine() provides a test environment which consists
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* of 3 processes that have 3 mappings and in turn, have 3 symbols
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* respectively. See below table:
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*
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* Command: Pid Shared Object Symbol
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* ............. ............. ...................
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* perf: 100 perf main
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* perf: 100 perf run_command
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* perf: 100 perf cmd_record
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* perf: 100 libc malloc
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* perf: 100 libc free
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* perf: 100 libc realloc
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* perf: 100 [kernel] schedule
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* perf: 100 [kernel] page_fault
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* perf: 100 [kernel] sys_perf_event_open
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* perf: 200 perf main
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* perf: 200 perf run_command
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* perf: 200 perf cmd_record
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* perf: 200 libc malloc
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* perf: 200 libc free
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* perf: 200 libc realloc
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* perf: 200 [kernel] schedule
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* perf: 200 [kernel] page_fault
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* perf: 200 [kernel] sys_perf_event_open
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* bash: 300 bash main
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* bash: 300 bash xmalloc
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* bash: 300 bash xfree
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* bash: 300 libc malloc
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* bash: 300 libc free
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* bash: 300 libc realloc
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* bash: 300 [kernel] schedule
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* bash: 300 [kernel] page_fault
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* bash: 300 [kernel] sys_perf_event_open
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*/
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struct machine *setup_fake_machine(struct machines *machines);
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void print_hists_in(struct hists *hists);
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void print_hists_out(struct hists *hists);
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#endif /* __PERF_TESTS__HISTS_COMMON_H__ */
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