Linus Torvalds 901c7280ca Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE"" ...

Halil Pasic points out [1] that the full revert of that commit (revert
in bddac7c1e0), and that a partial revert that only reverts the
problematic case, but still keeps some of the cleanups is probably
better.  

And that partial revert [2] had already been verified by Oleksandr
Natalenko to also fix the issue, I had just missed that in the long
discussion.

So let's reinstate the cleanups from commit aa6f8dcbab ("swiotlb:
rework "fix info leak with DMA_FROM_DEVICE""), and effectively only
revert the part that caused problems.

Link: https://lore.kernel.org/all/20220328013731.017ae3e3.pasic@linux.ibm.com/ [1]
Link: https://lore.kernel.org/all/20220324055732.GB12078@lst.de/ [2]
Link: https://lore.kernel.org/all/4386660.LvFx2qVVIh@natalenko.name/ [3]
Suggested-by: Halil Pasic <pasic@linux.ibm.com>
Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Cc: Christoph Hellwig" <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2022-03-28 11:37:05 -07:00

..

bpf

Merge tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-27 10:17:23 -07:00

cgroup

Merge branch 'akpm' (patches from Andrew)

2022-03-24 14:14:07 -07:00

configs

configs/debug: restore DEBUG_INFO=y for overriding

2022-03-17 11:02:13 -07:00

debug

kdb: Adopt scheduler's task classification

2021-11-03 17:21:37 +00:00

dma

Reinstate some of "swiotlb: rework "fix info leak with DMA_FROM_DEVICE""

2022-03-28 11:37:05 -07:00

entry

Merge tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-22 14:39:12 -07:00

events

Merge tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

2022-03-23 18:03:08 -07:00

futex

mm/truncate: Inline invalidate_complete_page() into its one caller

2022-03-21 12:59:01 -04:00

gcov

gcov: Remove compiler version check

2021-12-02 17:25:21 +09:00

irq

Merge tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-22 14:39:12 -07:00

kcsan

Merge tag 'kcsan.2022.01.09a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

2022-01-11 09:51:26 -08:00

livepatch

Merge tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-27 10:17:23 -07:00

locking

Merge tag 'locking-core-2022-03-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-22 13:44:21 -07:00

power

Merge tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block

2022-03-21 16:48:55 -07:00

printk

Merge tag 'printk-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2022-03-23 10:54:27 -07:00

rcu

Merge tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-22 14:39:12 -07:00

sched

Merge branch 'akpm' (patches from Andrew)

2022-03-22 16:11:53 -07:00

time

Merge tag 'prlimit-tasklist_lock-for-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2022-03-24 10:16:00 -07:00

trace

Merge tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-27 10:17:23 -07:00

.gitignore

…

acct.c

kernel: remove spurious blkdev.h includes

2021-10-18 06:17:01 -06:00

async.c

Revert "module, async: async_synchronize_full() on module init iff async is used"

2022-02-03 11:20:34 -08:00

audit_fsnotify.c

fsnotify: clarify contract for create event hooks

2021-10-27 12:32:34 +02:00

audit_tree.c

audit: use struct_size() helper in kmalloc()

2021-12-14 17:39:42 -05:00

audit_watch.c

Merge tag 'fsnotify_for_v5.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2021-11-06 16:43:20 -07:00

audit.c

audit: improve audit queue handling when "audit=1" on cmdline

2022-01-25 13:22:51 -05:00

audit.h

audit: log AUDIT_TIME_* records only from rules

2022-02-22 13:51:40 -05:00

auditfilter.c

Merge tag 'audit-pr-20220110' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

2022-01-11 13:08:21 -08:00

auditsc.c

Merge tag 'audit-pr-20220321' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit

2022-03-21 20:53:11 -07:00

backtracetest.c

…

bounds.c

…

capability.c

xfs: don't generate selinux audit messages for capability testing

2022-03-09 10:32:06 -08:00

cfi.c

cfi: Use rcu_read_{un}lock_sched_notrace

2021-08-11 13:11:12 -07:00

compat.c

arch: remove compat_alloc_user_space

2021-09-08 15:32:35 -07:00

configs.c

…

context_tracking.c

…

cpu_pm.c

PM: cpu: Make notifier chain use a raw_spinlock_t

2021-08-16 18:55:32 +02:00

cpu.c

Merge tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-22 14:39:12 -07:00

crash_core.c

kernel/crash_core: suppress unknown crashkernel parameter warning

2021-12-25 12:20:55 -08:00

crash_dump.c

…

cred.c

x86: Mark __invalid_creds() __noreturn

2022-03-15 10:32:44 +01:00

delayacct.c

delayacct: track delays from memory compact

2022-01-20 08:52:55 +02:00

dma.c

…

exec_domain.c

…

exit.c

Merge tag 'x86_core_for_5.18_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-27 10:17:23 -07:00

extable.c

lkdtm: Really write into kernel text in WRITE_KERN

2022-02-16 23:25:12 +11:00

fail_function.c

…

fork.c

kasan, arm64: reset pointer tags of vmapped stacks

2022-03-24 19:06:47 -07:00

freezer.c

sched: Add get_current_state()

2021-06-18 11:43:08 +02:00

gen_kheaders.sh

kbuild: clean up ${quiet} checks in shell scripts

2021-05-27 04:01:50 +09:00

groups.c

…

hung_task.c

hung_task: move hung_task sysctl interface to hung_task.c

2022-01-22 08:33:34 +02:00

iomem.c

…

irq_work.c

irq_work: Also rcuwait for !IRQ_WORK_HARD_IRQ on PREEMPT_RT

2021-10-15 11:25:18 +02:00

jump_label.c

jump_label: Fix jump_label_text_reserved() vs __init

2021-07-05 10:46:20 +02:00

kallsyms.c

kallsyms: Skip the name search for empty string

2022-03-17 20:17:18 -07:00

kcmp.c

…

Kconfig.freezer

…

Kconfig.hz

…

Kconfig.locks

locking/rwlock: Provide RT variant

2021-08-17 17:50:51 +02:00

Kconfig.preempt

Merge tag 'sched-core-2022-03-22' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2022-03-22 14:39:12 -07:00

kcov.c

kcov: properly handle subsequent mmap calls

2022-03-23 19:00:35 -07:00

kexec_core.c

exit: Move oops specific logic from do_exit into make_task_dead

2021-12-13 12:04:45 -06:00

kexec_elf.c

…

kexec_file.c

memblock: add MEMBLOCK_DRIVER_MANAGED to mimic IORESOURCE_SYSRAM_DRIVER_MANAGED

2021-11-06 13:30:42 -07:00

kexec_internal.h

…

kexec.c

kexec: avoid compat_alloc_user_space

2021-09-08 15:32:34 -07:00

kheaders.c

…

kmod.c

…

kprobes.c

x86/ibt,kprobes: Cure sym+0 equals fentry woes

2022-03-15 10:32:38 +01:00

ksysfs.c

kernel/ksysfs.c: use helper macro __ATTR_RW

2022-03-23 19:00:33 -07:00

kthread.c

Merge tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

2022-03-23 18:03:08 -07:00

latencytop.c

…

Makefile

module: add in-kernel support for decompressing

2022-01-11 18:45:02 -08:00

module_decompress.c

module: fix building with sysfs disabled

2022-02-16 12:51:32 -08:00

module_signature.c

…

module_signing.c

…

module-internal.h

module: add in-kernel support for decompressing

2022-01-11 18:45:02 -08:00

module.c

NFSD: Remove svc_serv_ops::svo_module

2022-02-28 10:26:40 -05:00

notifier.c

notifier: Return an error when a callback has already been registered

2021-12-29 10:37:33 +01:00

nsproxy.c

memcg: enable accounting for new namesapces and struct nsproxy

2021-09-03 09:58:12 -07:00

padata.c

padata: replace cpumask_weight with cpumask_empty in padata.c

2022-01-31 11:21:46 +11:00

panic.c

panic: move panic_print before kmsg dumpers

2022-03-23 19:00:35 -07:00

params.c

kobject: remove kset from struct kset_uevent_ops callbacks

2021-12-28 11:26:18 +01:00

pid_namespace.c

memcg: enable accounting for new namesapces and struct nsproxy

2021-09-03 09:58:12 -07:00

pid.c

pid: add pidfd_get_task() helper

2021-10-14 13:29:18 +02:00

profile.c

exit: Remove profile_handoff_task

2022-01-08 12:43:57 -06:00

ptrace.c

ptrace: Remove second setting of PT_SEIZED in ptrace_attach

2022-01-08 12:43:57 -06:00

range.c

…

reboot.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2021-11-12 11:53:16 -08:00

regset.c

…

relay.c

…

resource_kunit.c

…

resource.c

kernel/resource: fix kfree() of bootmem memory again

2022-03-23 19:00:35 -07:00

rseq.c

rseq: Remove broken uapi field layout on 32-bit little endian

2022-02-02 13:11:34 +01:00

scftorture.c

scftorture: Always log error message

2021-12-07 16:36:17 -08:00

scs.c

kasan, vmalloc: only tag normal vmalloc allocations

2022-03-24 19:06:48 -07:00

seccomp.c

seccomp: Invalidate seccomp mode to catch death failures

2022-02-10 19:09:12 -08:00

signal.c

signal, x86: Delay calling signals in atomic on RT enabled kernels

2022-03-04 14:58:54 +01:00

smp.c

sched: Improve wake_up_all_idle_cpus() take #2

2021-10-22 15:32:46 +02:00

smpboot.c

smpboot: Replace deprecated CPU-hotplug functions.

2021-08-10 14:57:42 +02:00

smpboot.h

…

softirq.c

genirq, softirq: Use in_hardirq() instead of in_irq()

2022-02-02 21:34:19 +01:00

stackleak.c

gcc-plugins/stackleak: Use noinstr in favor of notrace

2022-02-03 17:02:21 -08:00

stacktrace.c

uaccess: remove CONFIG_SET_FS

2022-02-25 09:36:06 +01:00

static_call.c

KVM: x86: allow defining return-0 static calls

2022-02-18 12:44:22 -05:00

stop_machine.c

…

sys_ni.c

mm/mempolicy: wire up syscall set_mempolicy_home_node

2022-01-15 16:30:30 +02:00

sys.c

prlimit: do not grab the tasklist_lock

2022-03-08 14:33:36 -06:00

sysctl-test.c

kernel/sysctl-test: Remove some casts which are no-longer required

2021-06-23 16:41:24 -06:00

sysctl.c

Merge branch 'akpm' (patches from Andrew)

2022-03-22 16:11:53 -07:00

task_work.c

…

taskstats.c

taskstats: remove unneeded dead assignment

2022-03-23 19:00:35 -07:00

torture.c

torture: Wake up kthreads after storing task_struct pointer

2022-02-01 17:24:39 -08:00

tracepoint.c

tracepoint: Fix kerneldoc comments

2021-08-16 11:39:51 -04:00

tsacct.c

taskstats: Cleanup the use of task->exit_code

2022-01-08 12:43:57 -06:00

ucount.c

ucounts: Handle wrapping in is_ucounts_overlimit

2022-02-17 09:11:57 -06:00

uid16.c

…

uid16.h

…

umh.c

…

up.c

…

user_namespace.c

ucounts: Fix systemd LimitNPROC with private users regression

2022-02-25 10:40:14 -06:00

user-return-notifier.c

…

user.c

fs/epoll: use a per-cpu counter for user's watches count

2021-09-08 11:50:27 -07:00

usermode_driver.c

Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2021-07-03 11:41:14 -07:00

utsname_sysctl.c

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utsname.c

…

watch_queue.c

watch_queue: Actually free the watch

2022-03-21 12:48:32 +00:00

watchdog_hld.c

…

watchdog.c

sched/isolation: Use single feature type while referring to housekeeping cpumask

2022-02-16 15:57:55 +01:00

workqueue_internal.h

workqueue: Assign a color to barrier work items

2021-08-17 07:49:10 -10:00

workqueue.c

Merge branch 'for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2022-03-23 12:40:51 -07:00