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
92 lines
1.3 KiB
Text
92 lines
1.3 KiB
Text
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%parse-param {struct list_head *format}
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%parse-param {char *name}
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%{
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#include <linux/compiler.h>
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#include <linux/list.h>
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#include <linux/bitmap.h>
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#include <string.h>
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#include "pmu.h"
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extern int perf_pmu_lex (void);
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#define ABORT_ON(val) \
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do { \
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if (val) \
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YYABORT; \
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} while (0)
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%}
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%token PP_CONFIG PP_CONFIG1 PP_CONFIG2
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%token PP_VALUE PP_ERROR
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%type <num> PP_VALUE
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%type <bits> bit_term
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%type <bits> bits
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%union
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{
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unsigned long num;
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DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
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}
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%%
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format:
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format format_term
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format_term
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format_term:
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PP_CONFIG ':' bits
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{
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ABORT_ON(perf_pmu__new_format(format, name,
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PERF_PMU_FORMAT_VALUE_CONFIG,
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$3));
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}
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PP_CONFIG1 ':' bits
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{
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ABORT_ON(perf_pmu__new_format(format, name,
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PERF_PMU_FORMAT_VALUE_CONFIG1,
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$3));
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}
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PP_CONFIG2 ':' bits
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{
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ABORT_ON(perf_pmu__new_format(format, name,
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PERF_PMU_FORMAT_VALUE_CONFIG2,
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$3));
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}
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bits:
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bits ',' bit_term
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{
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bitmap_or($$, $1, $3, 64);
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}
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bit_term
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{
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memcpy($$, $1, sizeof($1));
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}
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bit_term:
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PP_VALUE '-' PP_VALUE
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{
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perf_pmu__set_format($$, $1, $3);
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}
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PP_VALUE
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{
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perf_pmu__set_format($$, $1, 0);
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}
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%%
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void perf_pmu_error(struct list_head *list __maybe_unused,
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char *name __maybe_unused,
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char const *msg __maybe_unused)
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{
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}
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