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
75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_MEM_EVENTS_H
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#define __PERF_MEM_EVENTS_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <linux/types.h>
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#include "stat.h"
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struct perf_mem_event {
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bool record;
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bool supported;
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const char *tag;
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const char *name;
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const char *sysfs_name;
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};
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enum {
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PERF_MEM_EVENTS__LOAD,
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PERF_MEM_EVENTS__STORE,
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PERF_MEM_EVENTS__MAX,
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};
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extern struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX];
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extern unsigned int perf_mem_events__loads_ldlat;
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int perf_mem_events__parse(const char *str);
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int perf_mem_events__init(void);
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char *perf_mem_events__name(int i);
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struct mem_info;
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int perf_mem__tlb_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
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int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
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int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
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int perf_mem__lck_scnprintf(char *out, size_t sz, struct mem_info *mem_info);
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int perf_script__meminfo_scnprintf(char *bf, size_t size, struct mem_info *mem_info);
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struct c2c_stats {
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u32 nr_entries;
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u32 locks; /* count of 'lock' transactions */
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u32 store; /* count of all stores in trace */
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u32 st_uncache; /* stores to uncacheable address */
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u32 st_noadrs; /* cacheable store with no address */
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u32 st_l1hit; /* count of stores that hit L1D */
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u32 st_l1miss; /* count of stores that miss L1D */
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u32 load; /* count of all loads in trace */
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u32 ld_excl; /* exclusive loads, rmt/lcl DRAM - snp none/miss */
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u32 ld_shared; /* shared loads, rmt/lcl DRAM - snp hit */
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u32 ld_uncache; /* loads to uncacheable address */
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u32 ld_io; /* loads to io address */
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u32 ld_miss; /* loads miss */
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u32 ld_noadrs; /* cacheable load with no address */
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u32 ld_fbhit; /* count of loads hitting Fill Buffer */
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u32 ld_l1hit; /* count of loads that hit L1D */
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u32 ld_l2hit; /* count of loads that hit L2D */
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u32 ld_llchit; /* count of loads that hit LLC */
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u32 lcl_hitm; /* count of loads with local HITM */
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u32 rmt_hitm; /* count of loads with remote HITM */
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u32 tot_hitm; /* count of loads with local and remote HITM */
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u32 rmt_hit; /* count of loads with remote hit clean; */
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u32 lcl_dram; /* count of loads miss to local DRAM */
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u32 rmt_dram; /* count of loads miss to remote DRAM */
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u32 nomap; /* count of load/stores with no phys adrs */
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u32 noparse; /* count of unparsable data sources */
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};
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struct hist_entry;
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int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi);
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void c2c_add_stats(struct c2c_stats *stats, struct c2c_stats *add);
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#endif /* __PERF_MEM_EVENTS_H */
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