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
204 lines
6.8 KiB
C
204 lines
6.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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static struct ins x86__instructions[] = {
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{ .name = "adc", .ops = &mov_ops, },
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{ .name = "adcb", .ops = &mov_ops, },
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{ .name = "adcl", .ops = &mov_ops, },
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{ .name = "add", .ops = &mov_ops, },
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{ .name = "addl", .ops = &mov_ops, },
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{ .name = "addq", .ops = &mov_ops, },
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{ .name = "addsd", .ops = &mov_ops, },
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{ .name = "addw", .ops = &mov_ops, },
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{ .name = "and", .ops = &mov_ops, },
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{ .name = "andb", .ops = &mov_ops, },
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{ .name = "andl", .ops = &mov_ops, },
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{ .name = "andpd", .ops = &mov_ops, },
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{ .name = "andps", .ops = &mov_ops, },
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{ .name = "andq", .ops = &mov_ops, },
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{ .name = "andw", .ops = &mov_ops, },
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{ .name = "bsr", .ops = &mov_ops, },
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{ .name = "bt", .ops = &mov_ops, },
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{ .name = "btr", .ops = &mov_ops, },
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{ .name = "bts", .ops = &mov_ops, },
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{ .name = "btsq", .ops = &mov_ops, },
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{ .name = "call", .ops = &call_ops, },
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{ .name = "callq", .ops = &call_ops, },
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{ .name = "cmovbe", .ops = &mov_ops, },
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{ .name = "cmove", .ops = &mov_ops, },
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{ .name = "cmovae", .ops = &mov_ops, },
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{ .name = "cmp", .ops = &mov_ops, },
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{ .name = "cmpb", .ops = &mov_ops, },
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{ .name = "cmpl", .ops = &mov_ops, },
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{ .name = "cmpq", .ops = &mov_ops, },
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{ .name = "cmpw", .ops = &mov_ops, },
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{ .name = "cmpxch", .ops = &mov_ops, },
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{ .name = "cmpxchg", .ops = &mov_ops, },
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{ .name = "cs", .ops = &mov_ops, },
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{ .name = "dec", .ops = &dec_ops, },
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{ .name = "decl", .ops = &dec_ops, },
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{ .name = "divsd", .ops = &mov_ops, },
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{ .name = "divss", .ops = &mov_ops, },
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{ .name = "gs", .ops = &mov_ops, },
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{ .name = "imul", .ops = &mov_ops, },
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{ .name = "inc", .ops = &dec_ops, },
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{ .name = "incl", .ops = &dec_ops, },
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{ .name = "ja", .ops = &jump_ops, },
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{ .name = "jae", .ops = &jump_ops, },
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{ .name = "jb", .ops = &jump_ops, },
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{ .name = "jbe", .ops = &jump_ops, },
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{ .name = "jc", .ops = &jump_ops, },
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{ .name = "jcxz", .ops = &jump_ops, },
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{ .name = "je", .ops = &jump_ops, },
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{ .name = "jecxz", .ops = &jump_ops, },
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{ .name = "jg", .ops = &jump_ops, },
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{ .name = "jge", .ops = &jump_ops, },
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{ .name = "jl", .ops = &jump_ops, },
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{ .name = "jle", .ops = &jump_ops, },
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{ .name = "jmp", .ops = &jump_ops, },
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{ .name = "jmpq", .ops = &jump_ops, },
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{ .name = "jna", .ops = &jump_ops, },
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{ .name = "jnae", .ops = &jump_ops, },
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{ .name = "jnb", .ops = &jump_ops, },
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{ .name = "jnbe", .ops = &jump_ops, },
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{ .name = "jnc", .ops = &jump_ops, },
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{ .name = "jne", .ops = &jump_ops, },
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{ .name = "jng", .ops = &jump_ops, },
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{ .name = "jnge", .ops = &jump_ops, },
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{ .name = "jnl", .ops = &jump_ops, },
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{ .name = "jnle", .ops = &jump_ops, },
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{ .name = "jno", .ops = &jump_ops, },
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{ .name = "jnp", .ops = &jump_ops, },
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{ .name = "jns", .ops = &jump_ops, },
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{ .name = "jnz", .ops = &jump_ops, },
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{ .name = "jo", .ops = &jump_ops, },
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{ .name = "jp", .ops = &jump_ops, },
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{ .name = "jpe", .ops = &jump_ops, },
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{ .name = "jpo", .ops = &jump_ops, },
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{ .name = "jrcxz", .ops = &jump_ops, },
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{ .name = "js", .ops = &jump_ops, },
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{ .name = "jz", .ops = &jump_ops, },
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{ .name = "lea", .ops = &mov_ops, },
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{ .name = "lock", .ops = &lock_ops, },
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{ .name = "mov", .ops = &mov_ops, },
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{ .name = "movapd", .ops = &mov_ops, },
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{ .name = "movaps", .ops = &mov_ops, },
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{ .name = "movb", .ops = &mov_ops, },
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{ .name = "movdqa", .ops = &mov_ops, },
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{ .name = "movdqu", .ops = &mov_ops, },
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{ .name = "movl", .ops = &mov_ops, },
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{ .name = "movq", .ops = &mov_ops, },
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{ .name = "movsd", .ops = &mov_ops, },
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{ .name = "movslq", .ops = &mov_ops, },
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{ .name = "movss", .ops = &mov_ops, },
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{ .name = "movupd", .ops = &mov_ops, },
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{ .name = "movups", .ops = &mov_ops, },
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{ .name = "movw", .ops = &mov_ops, },
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{ .name = "movzbl", .ops = &mov_ops, },
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{ .name = "movzwl", .ops = &mov_ops, },
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{ .name = "mulsd", .ops = &mov_ops, },
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{ .name = "mulss", .ops = &mov_ops, },
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{ .name = "nop", .ops = &nop_ops, },
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{ .name = "nopl", .ops = &nop_ops, },
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{ .name = "nopw", .ops = &nop_ops, },
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{ .name = "or", .ops = &mov_ops, },
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{ .name = "orb", .ops = &mov_ops, },
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{ .name = "orl", .ops = &mov_ops, },
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{ .name = "orps", .ops = &mov_ops, },
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{ .name = "orq", .ops = &mov_ops, },
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{ .name = "pand", .ops = &mov_ops, },
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{ .name = "paddq", .ops = &mov_ops, },
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{ .name = "pcmpeqb", .ops = &mov_ops, },
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{ .name = "por", .ops = &mov_ops, },
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{ .name = "rclb", .ops = &mov_ops, },
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{ .name = "rcll", .ops = &mov_ops, },
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{ .name = "retq", .ops = &ret_ops, },
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{ .name = "sbb", .ops = &mov_ops, },
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{ .name = "sbbl", .ops = &mov_ops, },
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{ .name = "sete", .ops = &mov_ops, },
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{ .name = "sub", .ops = &mov_ops, },
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{ .name = "subl", .ops = &mov_ops, },
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{ .name = "subq", .ops = &mov_ops, },
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{ .name = "subsd", .ops = &mov_ops, },
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{ .name = "subw", .ops = &mov_ops, },
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{ .name = "test", .ops = &mov_ops, },
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{ .name = "testb", .ops = &mov_ops, },
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{ .name = "testl", .ops = &mov_ops, },
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{ .name = "ucomisd", .ops = &mov_ops, },
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{ .name = "ucomiss", .ops = &mov_ops, },
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{ .name = "vaddsd", .ops = &mov_ops, },
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{ .name = "vandpd", .ops = &mov_ops, },
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{ .name = "vmovdqa", .ops = &mov_ops, },
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{ .name = "vmovq", .ops = &mov_ops, },
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{ .name = "vmovsd", .ops = &mov_ops, },
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{ .name = "vmulsd", .ops = &mov_ops, },
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{ .name = "vorpd", .ops = &mov_ops, },
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{ .name = "vsubsd", .ops = &mov_ops, },
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{ .name = "vucomisd", .ops = &mov_ops, },
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{ .name = "xadd", .ops = &mov_ops, },
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{ .name = "xbeginl", .ops = &jump_ops, },
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{ .name = "xbeginq", .ops = &jump_ops, },
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{ .name = "xchg", .ops = &mov_ops, },
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{ .name = "xor", .ops = &mov_ops, },
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{ .name = "xorb", .ops = &mov_ops, },
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{ .name = "xorpd", .ops = &mov_ops, },
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{ .name = "xorps", .ops = &mov_ops, },
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};
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static bool x86__ins_is_fused(struct arch *arch, const char *ins1,
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const char *ins2)
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{
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if (arch->family != 6 || arch->model < 0x1e || strstr(ins2, "jmp"))
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return false;
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if (arch->model == 0x1e) {
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/* Nehalem */
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if ((strstr(ins1, "cmp") && !strstr(ins1, "xchg")) ||
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strstr(ins1, "test")) {
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return true;
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}
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} else {
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/* Newer platform */
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if ((strstr(ins1, "cmp") && !strstr(ins1, "xchg")) ||
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strstr(ins1, "test") ||
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strstr(ins1, "add") ||
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strstr(ins1, "sub") ||
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strstr(ins1, "and") ||
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strstr(ins1, "inc") ||
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strstr(ins1, "dec")) {
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return true;
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}
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}
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return false;
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}
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static int x86__cpuid_parse(struct arch *arch, char *cpuid)
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{
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unsigned int family, model, stepping;
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int ret;
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/*
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* cpuid = "GenuineIntel,family,model,stepping"
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*/
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ret = sscanf(cpuid, "%*[^,],%u,%u,%u", &family, &model, &stepping);
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if (ret == 3) {
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arch->family = family;
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arch->model = model;
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return 0;
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}
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return -1;
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}
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static int x86__annotate_init(struct arch *arch, char *cpuid)
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{
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int err = 0;
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if (arch->initialized)
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return 0;
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if (cpuid)
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err = x86__cpuid_parse(arch, cpuid);
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arch->initialized = true;
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return err;
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}
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