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
95 lines
1.5 KiB
ArmAsm
95 lines
1.5 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/linkage.h>
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/* Offset is based on macros from arch/powerpc/include/uapi/asm/ptrace.h. */
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#define R0 0
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#define R1 1 * 8
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#define R2 2 * 8
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#define R3 3 * 8
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#define R4 4 * 8
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#define R5 5 * 8
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#define R6 6 * 8
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#define R7 7 * 8
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#define R8 8 * 8
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#define R9 9 * 8
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#define R10 10 * 8
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#define R11 11 * 8
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#define R12 12 * 8
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#define R13 13 * 8
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#define R14 14 * 8
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#define R15 15 * 8
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#define R16 16 * 8
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#define R17 17 * 8
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#define R18 18 * 8
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#define R19 19 * 8
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#define R20 20 * 8
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#define R21 21 * 8
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#define R22 22 * 8
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#define R23 23 * 8
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#define R24 24 * 8
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#define R25 25 * 8
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#define R26 26 * 8
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#define R27 27 * 8
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#define R28 28 * 8
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#define R29 29 * 8
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#define R30 30 * 8
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#define R31 31 * 8
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#define NIP 32 * 8
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#define CTR 35 * 8
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#define LINK 36 * 8
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#define XER 37 * 8
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.globl perf_regs_load
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perf_regs_load:
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std 0, R0(3)
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std 1, R1(3)
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std 2, R2(3)
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std 3, R3(3)
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std 4, R4(3)
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std 5, R5(3)
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std 6, R6(3)
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std 7, R7(3)
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std 8, R8(3)
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std 9, R9(3)
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std 10, R10(3)
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std 11, R11(3)
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std 12, R12(3)
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std 13, R13(3)
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std 14, R14(3)
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std 15, R15(3)
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std 16, R16(3)
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std 17, R17(3)
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std 18, R18(3)
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std 19, R19(3)
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std 20, R20(3)
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std 21, R21(3)
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std 22, R22(3)
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std 23, R23(3)
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std 24, R24(3)
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std 25, R25(3)
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std 26, R26(3)
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std 27, R27(3)
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std 28, R28(3)
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std 29, R29(3)
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std 30, R30(3)
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std 31, R31(3)
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/* store NIP */
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mflr 4
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std 4, NIP(3)
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/* Store LR */
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std 4, LINK(3)
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/* Store XER */
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mfxer 4
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std 4, XER(3)
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/* Store CTR */
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mfctr 4
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std 4, CTR(3)
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/* Restore original value of r4 */
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ld 4, R4(3)
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blr
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