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
48 lines
733 B
ArmAsm
48 lines
733 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/linkage.h>
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.text
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.type perf_regs_load,%function
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#define STR_REG(r) str x##r, [x0, 8 * r]
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#define LDR_REG(r) ldr x##r, [x0, 8 * r]
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#define SP (8 * 31)
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#define PC (8 * 32)
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ENTRY(perf_regs_load)
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STR_REG(0)
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STR_REG(1)
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STR_REG(2)
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STR_REG(3)
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STR_REG(4)
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STR_REG(5)
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STR_REG(6)
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STR_REG(7)
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STR_REG(8)
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STR_REG(9)
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STR_REG(10)
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STR_REG(11)
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STR_REG(12)
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STR_REG(13)
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STR_REG(14)
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STR_REG(15)
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STR_REG(16)
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STR_REG(17)
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STR_REG(18)
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STR_REG(19)
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STR_REG(20)
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STR_REG(21)
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STR_REG(22)
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STR_REG(23)
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STR_REG(24)
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STR_REG(25)
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STR_REG(26)
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STR_REG(27)
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STR_REG(28)
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STR_REG(29)
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STR_REG(30)
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mov x1, sp
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str x1, [x0, #SP]
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str x30, [x0, #PC]
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LDR_REG(1)
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ret
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ENDPROC(perf_regs_load)
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