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
88 lines
1.9 KiB
C
88 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ARCH_PERF_REGS_H
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#define ARCH_PERF_REGS_H
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#include <stdlib.h>
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#include <linux/types.h>
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#include <asm/perf_regs.h>
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void perf_regs_load(u64 *regs);
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#ifndef HAVE_ARCH_X86_64_SUPPORT
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#define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1)
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#define PERF_REGS_MAX PERF_REG_X86_32_MAX
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#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_32
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#else
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#define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
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(1ULL << PERF_REG_X86_ES) | \
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(1ULL << PERF_REG_X86_FS) | \
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(1ULL << PERF_REG_X86_GS))
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#define PERF_REGS_MASK (((1ULL << PERF_REG_X86_64_MAX) - 1) & ~REG_NOSUPPORT)
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#define PERF_REGS_MAX PERF_REG_X86_64_MAX
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#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_64
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#endif
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#define PERF_REG_IP PERF_REG_X86_IP
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#define PERF_REG_SP PERF_REG_X86_SP
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static inline const char *perf_reg_name(int id)
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{
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switch (id) {
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case PERF_REG_X86_AX:
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return "AX";
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case PERF_REG_X86_BX:
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return "BX";
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case PERF_REG_X86_CX:
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return "CX";
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case PERF_REG_X86_DX:
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return "DX";
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case PERF_REG_X86_SI:
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return "SI";
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case PERF_REG_X86_DI:
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return "DI";
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case PERF_REG_X86_BP:
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return "BP";
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case PERF_REG_X86_SP:
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return "SP";
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case PERF_REG_X86_IP:
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return "IP";
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case PERF_REG_X86_FLAGS:
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return "FLAGS";
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case PERF_REG_X86_CS:
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return "CS";
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case PERF_REG_X86_SS:
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return "SS";
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case PERF_REG_X86_DS:
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return "DS";
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case PERF_REG_X86_ES:
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return "ES";
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case PERF_REG_X86_FS:
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return "FS";
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case PERF_REG_X86_GS:
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return "GS";
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#ifdef HAVE_ARCH_X86_64_SUPPORT
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case PERF_REG_X86_R8:
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return "R8";
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case PERF_REG_X86_R9:
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return "R9";
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case PERF_REG_X86_R10:
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return "R10";
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case PERF_REG_X86_R11:
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return "R11";
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case PERF_REG_X86_R12:
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return "R12";
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case PERF_REG_X86_R13:
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return "R13";
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case PERF_REG_X86_R14:
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return "R14";
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case PERF_REG_X86_R15:
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return "R15";
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#endif /* HAVE_ARCH_X86_64_SUPPORT */
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default:
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return NULL;
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}
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return NULL;
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}
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#endif /* ARCH_PERF_REGS_H */
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