linux/include
Miaohe Lin b65597377b mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled()
[ Upstream commit e6be37b2e7 ]

Since commit 99cb0dbd47 ("mm,thp: add read-only THP support for
(non-shmem) FS"), read-only THP file mapping is supported.  But it forgot
to add checking for it in transparent_hugepage_enabled().  To fix it, we
add checking for read-only THP file mapping and also introduce helper
transhuge_vma_enabled() to check whether thp is enabled for specified vma
to reduce duplicated code.  We rename transparent_hugepage_enabled to
transparent_hugepage_active to make the code easier to follow as suggested
by David Hildenbrand.

[linmiaohe@huawei.com: define transhuge_vma_enabled next to transhuge_vma_suitable]
  Link: https://lkml.kernel.org/r/20210514093007.4117906-1-linmiaohe@huawei.com

Link: https://lkml.kernel.org/r/20210511134857.1581273-4-linmiaohe@huawei.com
Fixes: 99cb0dbd47 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Yang Shi <shy828301@gmail.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Aneesh Kumar K . V" <aneesh.kumar@linux.ibm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:50 +02:00
..
acpi
asm-generic sched/core: Initialize the idle task with preemption disabled 2021-07-14 16:55:50 +02:00
clocksource clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG 2021-07-14 16:56:12 +02:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:55:54 +02:00
drm
dt-bindings clk: imx8mq: remove SYS PLL 1/2 clock gates 2021-07-14 16:56:20 +02:00
keys certs: Add EFI_CERT_X509_GUID support for dbx entries 2021-06-30 08:47:30 -04:00
kunit
kvm
linux mm/huge_memory.c: add missing read-only THP checking in transparent_hugepage_enabled() 2021-07-14 16:56:50 +02:00
math-emu
media media: v4l2-async: Clean v4l2_async_notifier_add_fwnode_remote_subdev 2021-07-14 16:56:11 +02:00
memory
misc
net net: lwtunnel: handle MTU calculation in forwading 2021-07-14 16:56:32 +02:00
pcmcia
ras
rdma
scsi Fix misc new gcc warnings 2021-05-11 14:47:36 +02:00
soc
sound
target
trace SUNRPC: Remove trace_xprt_transmit_queued 2021-05-19 10:13:03 +02:00
uapi icmp: don't send out ICMP messages with a source address of 0.0.0.0 2021-06-23 14:42:47 +02:00
vdso
video
xen