Yang Shi c06306696f mm: thp: fix false negative of shmem vma's THP eligibility ... Commit 7635d9cbe8 ("mm, thp, proc: report THP eligibility for each vma") introduced THPeligible bit for processes' smaps. But, when checking the eligibility for shmem vma, __transparent_hugepage_enabled() is called to override the result from shmem_huge_enabled(). It may result in the anonymous vma's THP flag override shmem's. For example, running a simple test which create THP for shmem, but with anonymous THP disabled, when reading the process's smaps, it may show: 7fc92ec00000-7fc92f000000 rw-s 00000000 00:14 27764 /dev/shm/test Size: 4096 kB ... [snip] ... ShmemPmdMapped: 4096 kB ... [snip] ... THPeligible: 0 And, /proc/meminfo does show THP allocated and PMD mapped too: ShmemHugePages: 4096 kB ShmemPmdMapped: 4096 kB This doesn't make too much sense. The shmem objects should be treated separately from anonymous THP. Calling shmem_huge_enabled() with checking MMF_DISABLE_THP sounds good enough. And, we could skip stack and dax vma check since we already checked if the vma is shmem already. Also check if vma is suitable for THP by calling transhuge_vma_suitable(). And minor fix to smaps output format and documentation. Link: http://lkml.kernel.org/r/1560401041-32207-3-git-send-email-yang.shi@linux.alibaba.com Fixes: 7635d9cbe8 ("mm, thp, proc: report THP eligibility for each vma") Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> Acked-by: Hugh Dickins <hughd@google.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: David Rientjes <rientjes@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-07-18 17:08:06 -07:00
..
ABI	platform/x86: asus: Rename "fan mode" to "fan boost mode"	2019-07-17 19:07:58 +03:00
EDID	docs: driver-api: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
PCI	Documentation: PCI: convert endpoint/pci-test-howto.txt to reST	2019-05-30 17:54:34 -05:00
RCU	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
accounting	docs: add some documentation dirs to the driver-api book	2019-07-15 11:03:02 -03:00
acpi/dsd	docs: fix broken documentation links	2019-06-08 13:42:13 -06:00
admin-guide	Merge branch 'akpm' (patches from Andrew)	2019-07-17 08:58:04 -07:00
arm	docs: arm: fix a breakage with pdf output	2019-07-15 11:03:04 -03:00
arm64	docs: add arch doc directories to the index	2019-07-15 11:03:01 -03:00
auxdisplay	docs: admin-guide: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
block	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
bpf	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2019-07-11 10:55:49 -07:00
cdrom	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
core-api	docs: admin-guide: move sysctl directory to it	2019-07-15 11:03:01 -03:00
cpu-freq	docs: power: convert docs to ReST and rename to *.rst	2019-06-14 16:08:36 -05:00
crypto	crypto: doc - Fix formatting of new crypto engine content	2019-07-03 22:13:12 +08:00
dev-tools	docs: kmemleak: add more documentation details	2019-07-12 11:05:42 -07:00
devicetree	hwspinlock updates for v5.3	2019-07-17 11:53:53 -07:00
doc-guide	Doc : doc-guide : Fix a typo	2019-06-28 09:04:14 -06:00
driver-api	This round of clk driver and framework updates is heavy on the driver update	2019-07-17 10:07:48 -07:00
fault-injection	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
fb	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
features	Documentation/stackprotector: powerpc supports stack protector	2019-06-14 14:44:43 -06:00
filesystems	mm: thp: fix false negative of shmem vma's THP eligibility	2019-07-18 17:08:06 -07:00
firmware-guide	docs: gpio: add sysfs interface to the admin-guide	2019-07-15 11:03:03 -03:00
firmware_class	…
fpga	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
gpu	drm main pull request for v5.3-rc1 (sans mm changes)	2019-07-15 19:04:27 -07:00
hid	docs: add some documentation dirs to the driver-api book	2019-07-15 11:03:02 -03:00
hwmon	docs: driver-model: move it to the driver-api book	2019-07-15 11:03:02 -03:00
i2c	Merge branch 'i2c/for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2019-07-15 21:10:39 -07:00
ia64	docs: add SPDX tags to new index files	2019-07-15 11:03:03 -03:00
ide	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
iio	docs: add some documentation dirs to the driver-api book	2019-07-15 11:03:02 -03:00
infiniband	docs: infiniband: add it to the driver-api bookset	2019-07-08 14:22:56 -03:00
input	docs: hid: convert to ReST	2019-07-02 10:19:34 +02:00
ioctl	docs: ioctl: add it to the uAPI guide	2019-07-15 09:20:28 -03:00
isdn	isdn: remove isdn4linux	2019-05-31 11:13:10 +02:00
kbuild	docs: kbuild: fix build with pdf and fix some minor issues	2019-07-15 11:03:04 -03:00
kernel-hacking	docs: locking: convert docs to ReST and rename to *.rst	2019-07-15 08:53:27 -03:00
leds	docs: leds: add it to the driver-api book	2019-07-15 09:20:28 -03:00
livepatch	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
locking	docs: locking: add it to the main index	2019-07-15 11:03:03 -03:00
m68k	docs: add arch doc directories to the index	2019-07-15 11:03:01 -03:00
maintainer	docs: Add a document on repository management	2019-06-18 09:33:16 -06:00
media	media: doc-rst: Fix typos	2019-06-27 07:35:47 -04:00
mic	docs: driver-api: add remaining converted dirs to it	2019-07-15 11:03:03 -03:00
mips	…
misc-devices	docs: misc-devices: convert files without extension to ReST	2019-07-03 21:09:41 +02:00
netlabel	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
networking	docs: admin-guide: move sysctl directory to it	2019-07-15 11:03:01 -03:00
nios2	…
openrisc	…
parisc	…
pcmcia	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
power	More power management updates for 5.3-rc1	2019-07-18 09:32:28 -07:00
powerpc	docs: admin-guide: add kdump documentation into it	2019-07-15 11:03:01 -03:00
process	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
riscv	docs: add arch doc directories to the index	2019-07-15 11:03:01 -03:00
s390	docs: don't use nested tables	2019-07-15 11:03:04 -03:00
scheduler	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
scsi	scsi: ufs: Documentation: Announce ufs-tool v1.0	2019-06-26 22:47:51 -04:00
security	docs: security: move some books to it and update	2019-07-15 11:03:01 -03:00
sh	…
sound	…
sparc	docs: add arch doc directories to the index	2019-07-15 11:03:01 -03:00
sphinx	docs: automarkup.py: ignore exceptions when seeking for xrefs	2019-07-08 14:35:47 -06:00
sphinx-static	…
spi	…
target	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
thermal	docs: thermal: convert to ReST	2019-06-27 21:22:15 +08:00
timers	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
trace	pci-v5.3-changes	2019-07-15 20:44:49 -07:00
translations	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
usb	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
userspace-api	docs: ocxl.rst: add it to the uAPI book	2019-07-15 11:03:02 -03:00
virtual	ARM:	2019-07-12 15:35:14 -07:00
vm	docs: cgroup-v1: add it to the admin-guide book	2019-07-15 11:03:02 -03:00
w1	docs: driver-api: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
watchdog	docs: add some directories to the main documentation index	2019-07-15 11:03:03 -03:00
wimax	…
x86	docs: admin-guide: add a series of orphaned documents	2019-07-15 11:03:02 -03:00
xtensa	docs: add arch doc directories to the index	2019-07-15 11:03:01 -03:00
.gitignore	…
COPYING-logo	docs: logo.txt: rename it to COPYING-logo	2019-07-15 09:20:27 -03:00
Changes	…
CodingStyle	…
DMA-API-HOWTO.txt	docs: DMA-API-HOWTO.txt: fix an unmarked code block	2019-07-15 09:20:24 -03:00
DMA-API.txt	Documentation: DMA-API: fix a function name of max_mapping_size	2019-06-07 11:10:33 -06:00
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ-domain.txt	…
IRQ.txt	…
Kconfig	docs: Kbuild/Makefile: allow check for missing docs at build time	2019-06-07 11:33:16 -06:00
Makefile	docs: Kbuild/Makefile: allow check for missing docs at build time	2019-06-07 11:33:16 -06:00
SubmittingPatches	…
atomic_bitops.txt	…
atomic_t.txt	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-07-08 16:12:03 -07:00
bus-virt-phys-mapping.txt	…
conf.py	Disable Sphinx SmartyPants in HTML output	2019-06-30 15:30:34 -06:00
crc32.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	…
digsig.txt	…
docutils.conf	doc-rst: Add missing newline at end of file	2019-06-20 14:16:56 -06:00
dontdiff	kbuild: do not create wrappers for header-test-y	2019-07-09 10:10:27 +09:00
futex-requeue-pi.txt	…
hwspinlock.txt	hwspinlock: add the 'in_atomic' API	2019-06-29 21:08:14 -07:00
index.rst	docs conversion for v5.3-rc1	2019-07-16 12:21:41 -07:00
io-mapping.txt	…
io_ordering.txt	…
irqflags-tracing.txt	…
kobject.txt	…
kprobes.txt	…
kref.txt	…
logo.gif	…
lzo.txt	…
mailbox.txt	…
memory-barriers.txt	It's been a relatively busy cycle for docs:	2019-07-09 12:34:26 -07:00
nommu-mmap.txt	…
packing.txt	…
padata.txt	…
percpu-rw-semaphore.txt	…
pi-futex.txt	docs: locking: convert docs to ReST and rename to *.rst	2019-07-15 08:53:27 -03:00
preempt-locking.txt	…
rbtree.txt	docs: rbtree.txt: fix Sphinx build warnings	2019-07-15 09:20:24 -03:00
remoteproc.txt	remoteproc: add vendor resources handling	2019-06-29 12:02:17 -07:00
robust-futex-ABI.txt	…
robust-futexes.txt	…
rpmsg.txt	…
speculation.txt	…
static-keys.txt	…
tee.txt	Documentation: tee: Grammar s/the its/its/	2019-06-07 11:23:38 -06:00
this_cpu_ops.txt	…
unaligned-memory-access.txt	…
xz.txt	…