Brian Geffon 14d071134c Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio" ... This reverts commit cd544fd1dc. As discussed in [1] this commit was a no-op because the mapping type was checked in vma_to_resize before move_vma is ever called. This meant that vm_ops->mremap() would never be called on such mappings. Furthermore, we've since expanded support of MREMAP_DONTUNMAP to non-anonymous mappings, and these special mappings are still protected by the existing check of !VM_DONTEXPAND and !VM_PFNMAP which will result in a -EINVAL. 1. https://lkml.org/lkml/2020/12/28/2340 Link: https://lkml.kernel.org/r/20210323182520.2712101-2-bgeffon@google.com Signed-off-by: Brian Geffon <bgeffon@google.com> Acked-by: Hugh Dickins <hughd@google.com> Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Alejandro Colomar <alx.manpages@gmail.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Lokesh Gidra <lokeshgidra@google.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: "Michael S . Tsirkin" <mst@redhat.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Peter Xu <peterx@redhat.com> Cc: Sonny Rao <sonnyrao@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-04-30 11:20:39 -07:00
..
mce	- turn the stack canary into a normal __percpu variable on 32-bit which	2021-04-27 17:45:09 -07:00
microcode	x86/microcode: Check for offline CPUs before requesting new microcode	2021-03-22 22:29:40 +01:00
mtrr	x86: Fix various typos in comments, take #2	2021-03-21 23:50:28 +01:00
resctrl	Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"	2021-04-30 11:20:39 -07:00
sgx	Trivial cleanups and fixes all over the place.	2021-04-26 09:25:47 -07:00
.gitignore
acrn.c
amd.c	x86: Remove dynamic NOP selection	2021-03-15 16:24:59 +01:00
aperfmperf.c
bugs.c
cacheinfo.c	x86/cacheinfo: Remove unneeded dead-store initialization	2021-04-07 21:12:12 +02:00
centaur.c
common.c	- turn the stack canary into a normal __percpu variable on 32-bit which	2021-04-27 17:45:09 -07:00
cpu.h
cpuid-deps.c	x86/cpufeatures: Add SGX1 and SGX2 sub-features	2021-03-25 17:33:11 +01:00
cyrix.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
feat_ctl.c	x86/cpu/intel: Allow SGX virtualization without Launch Control support	2021-04-06 09:43:41 +02:00
hygon.c	x86/cpu/hygon: Set __max_die_per_package on Hygon	2021-03-06 12:54:59 +01:00
hypervisor.c
intel.c	Perf events changes in this cycle were:	2021-04-28 13:03:44 -07:00
intel_epb.c
intel_pconfig.c
Makefile
match.c
mkcapflags.sh
mshyperv.c	hyperv-next for 5.13	2021-04-26 10:44:16 -07:00
perfctr-watchdog.c
powerflags.c
proc.c
rdrand.c
scattered.c	x86/cpufeatures: Add SGX1 and SGX2 sub-features	2021-03-25 17:33:11 +01:00
topology.c	x86: Fix various typos in comments	2021-03-18 15:31:53 +01:00
transmeta.c
tsx.c
umc.c
umwait.c
vmware.c	Have vmware guests skip the refined TSC calibration when the TSC	2021-04-26 09:13:43 -07:00
zhaoxin.c