renegade-project/linux-next
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linux-next/arch/x86
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Vasily Averin ec403e2ae0 memcg: enable accounting for ldt_struct objects 
Each task can request own LDT and force the kernel to allocate up to 64Kb
memory per-mm.

There are legitimate workloads with hundreds of processes and there can be
hundreds of workloads running on large machines.  The unaccounted memory
can cause isolation issues between the workloads particularly on highly
utilized machines.

It makes sense to account for this objects to restrict the host's memory
consumption from inside the memcg-limited container.

Link: https://lkml.kernel.org/r/38010594-50fe-c06d-7cb0-d1f77ca422f3@virtuozzo.com
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Acked-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrei Vagin <avagin@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Yutian Yang <nglaive@gmail.com>
Cc: Zefan Li <lizefan.x@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-03 09:58:13 -07:00
..
boot x86/efi: Restore Firmware IDT before calling ExitBootServices() 2021-08-21 17:57:04 +02:00
configs module: remove EXPORT_UNUSED_SYMBOL* 2021-02-08 12:28:07 +01:00
crypto crypto: x86/curve25519 - fix cpu feature checking logic in mod_exit 2021-06-11 15:03:29 +08:00
entry arch, mm: wire up memfd_secret system call where relevant 2021-07-08 11:48:21 -07:00
events perf/x86/amd/power: Assign pmu.module 2021-08-26 09:12:57 +02:00
hyperv Drivers: hv: Move Hyper-V extended capability check to arch neutral code 2021-06-05 10:22:34 +00:00
ia32 binfmt: remove in-tree usage of MAP_EXECUTABLE 2021-06-29 10:53:50 -07:00
include KVM: nSVM: avoid picking up unsupported bits from L2 in int_ctl (CVE-2021-3653) 2021-08-16 09:48:27 -04:00
kernel memcg: enable accounting for ldt_struct objects 2021-09-03 09:58:13 -07:00
kvm KVM: nSVM: always intercept VMLOAD/VMSAVE when nested (CVE-2021-3656) 2021-08-16 09:48:37 -04:00
lib - Differentiate the type of exception the #VC handler raises depending 2021-06-28 11:29:12 -07:00
math-emu x86/math-emu: Rename frstor() 2021-06-23 18:16:33 +02:00
mm Revert "mm/pgtable: add stubs for {pmd/pub}_{set/clear}_huge" 2021-07-21 11:28:09 +01:00
net bpf: Introduce BPF nospec instruction for mitigating Spectre v4 2021-07-29 00:20:56 +02:00
pci pci-v5.14-changes 2021-07-08 12:06:20 -07:00
platform EFI changes: two driver API cleanups, and a log message tweak. 2021-06-28 11:34:16 -07:00
power - turn the stack canary into a normal __percpu variable on 32-bit which 2021-04-27 17:45:09 -07:00
purgatory kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
ras
realmode A single ELF format fix for a section flags mismatch bug that breaks 2021-06-28 11:35:55 -07:00
tools x86/tools: Fix objdump version check again 2021-08-12 17:17:25 +02:00
um x86/uml/syscalls: Remove array index from syscall initializers 2021-05-25 16:59:23 +02:00
video
xen kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
.gitignore
Kbuild
Kconfig arch: Kconfig: clean up obsolete use of HAVE_IDE 2021-07-30 08:19:09 -06:00
Kconfig.assembler
Kconfig.cpu
Kconfig.debug
Makefile Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
Makefile_32.cpu
Makefile.um um: allow not setting extra rpaths in the linux binary 2021-06-17 21:54:15 +02:00