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
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| .. | ||
| lib/Perf/Trace | ||
| Build | ||
| Context.c | ||
| Context.xs | ||
| Makefile.PL | ||
| README | ||
| typemap | ||
Perf-Trace-Util version 0.01
============================
This module contains utility functions for use with perf script.
Core.pm and Util.pm are pure Perl modules; Core.pm contains routines
that the core perf support for Perl calls on and should always be
'used', while Util.pm contains useful but optional utility functions
that scripts may want to use. Context.pm contains the Perl->C
interface that allows scripts to access data in the embedding perf
executable; scripts wishing to do that should 'use Context.pm'.
The Perl->C perf interface is completely driven by Context.xs. If you
want to add new Perl functions that end up accessing C data in the
perf executable, you add desciptions of the new functions here.
scripting_context is a pointer to the perf data in the perf executable
that you want to access - it's passed as the second parameter,
$context, to all handler functions.
After you do that:
perl Makefile.PL # to create a Makefile for the next step
make # to create Context.c
edit Context.c to add const to the char* file = __FILE__ line in
XS(boot_Perf__Trace__Context) to silence a warning/error.
You can delete the Makefile, object files and anything else that was
generated e.g. blib and shared library, etc, except for of course
Context.c
You should then be able to run the normal perf make as usual.
INSTALLATION
Building perf with perf script Perl scripting should install this
module in the right place.
You should make sure libperl and ExtUtils/Embed.pm are installed first
e.g. apt-get install libperl-dev or yum install perl-ExtUtils-Embed.
DEPENDENCIES
This module requires these other modules and libraries:
None
COPYRIGHT AND LICENCE
Copyright (C) 2009 by Tom Zanussi <tzanussi@gmail.com>
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself, either Perl version 5.10.0 or,
at your option, any later version of Perl 5 you may have available.
Alternatively, this software may be distributed under the terms of the
GNU General Public License ("GPL") version 2 as published by the Free
Software Foundation.