Bui Quang Minh afe041c2d0 hugetlb: fix hugetlb cgroup refcounting during mremap ... When hugetlb_vm_op_open() is called during copy_vma(), we may take the reference to resv_map->css. Later, when clearing the reservation pointer of old_vma after transferring it to new_vma, we forget to drop the reference to resv_map->css. This leads to a reference leak of css. Fixes this by adding a check to drop reservation css reference in clear_vma_resv_huge_pages() Link: https://lkml.kernel.org/r/20211113154412.91134-1-minhquangbui99@gmail.com Fixes: 550a7d60bd ("mm, hugepages: add mremap() support for hugepage backed vma") Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Reviewed-by: Mina Almasry <almasrymina@google.com> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-11-20 10:35:54 -08:00
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acpi
asm-generic
clocksource
crypto
drm
dt-bindings	dt-bindings: Rename Ingenic CGU headers to ingenic,*.h	2021-11-11 22:27:14 -06:00
keys
kunit
kvm
linux	hugetlb: fix hugetlb cgroup refcounting during mremap	2021-11-20 10:35:54 -08:00
math-emu
media
memory
misc
net	page_pool: Revert "page_pool: disable dma mapping support..."	2021-11-18 11:29:40 +00:00
pcmcia
ras
rdma	RDMA/netlink: Add __maybe_unused to static inline in C file	2021-11-16 13:13:08 -04:00
scsi	SCSI misc on 20211112	2021-11-12 12:25:50 -08:00
soc
sound
target
trace	f2fs-for-5.16-rc1	2021-11-13 11:20:22 -08:00
uapi	virtio-mem: support VIRTIO_MEM_F_UNPLUGGED_INACCESSIBLE	2021-11-13 13:14:05 -08:00
vdso
video
xen