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
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PERF_SYS_H
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#define _PERF_SYS_H
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <linux/types.h>
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#include <linux/compiler.h>
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#include <linux/perf_event.h>
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#include <asm/barrier.h>
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#ifdef __powerpc__
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __s390__
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#define CPUINFO_PROC {"vendor_id"}
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#endif
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#ifdef __sh__
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#define CPUINFO_PROC {"cpu type"}
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#endif
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#ifdef __hppa__
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __sparc__
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __alpha__
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#define CPUINFO_PROC {"cpu model"}
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#endif
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#ifdef __arm__
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#define CPUINFO_PROC {"model name", "Processor"}
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#endif
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#ifdef __mips__
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#define CPUINFO_PROC {"cpu model"}
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#endif
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#ifdef __arc__
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#define CPUINFO_PROC {"Processor"}
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#endif
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#ifdef __xtensa__
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#define CPUINFO_PROC {"core ID"}
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#endif
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#ifndef CPUINFO_PROC
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#define CPUINFO_PROC { "model name", }
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#endif
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static inline int
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sys_perf_event_open(struct perf_event_attr *attr,
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pid_t pid, int cpu, int group_fd,
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unsigned long flags)
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{
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int fd;
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fd = syscall(__NR_perf_event_open, attr, pid, cpu,
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group_fd, flags);
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#ifdef HAVE_ATTR_TEST
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if (unlikely(test_attr__enabled))
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test_attr__open(attr, pid, cpu, fd, group_fd, flags);
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#endif
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return fd;
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}
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#endif /* _PERF_SYS_H */
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