Peter Xu ad415db817 mm/gup: fix __get_user_pages() on fault retry of hugetlb ... When follow_hugetlb_page() returns with *locked==0, it means we've got a VM_FAULT_RETRY within the fauling process and we've released the mmap_sem. When that happens, we should stop and bail out. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Brian Geffon <bgeffon@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Bobby Powers <bobbypowers@gmail.com> Cc: David Hildenbrand <david@redhat.com> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: Martin Cracauer <cracauer@cons.org> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Matthew Wilcox <willy@infradead.org> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Mike Rapoport <rppt@linux.vnet.ibm.com> Cc: Pavel Emelyanov <xemul@openvz.org> Link: http://lkml.kernel.org/r/20200220155353.8676-3-peterx@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-04-02 09:35:29 -07:00
..
kasan	RISC-V Patches for the 5.6 Merge Window, Part 1	2020-01-31 11:23:29 -08:00
backing-dev.c	memcg: fix a crash in wb_workfn when a device disappears	2020-01-31 10:30:36 -08:00
balloon_compaction.c
cleancache.c
cma.c
cma.h
cma_debug.c
compaction.c
debug.c	mm: dump_page(): additional diagnostics for huge pinned pages	2020-04-02 09:35:27 -07:00
debug_page_ref.c
dmapool.c
early_ioremap.c	mm/early_ioremap.c: use %pa to print resource_size_t variables	2020-01-31 10:30:38 -08:00
fadvise.c
failslab.c
filemap.c	mm/filemap.c: rewrite pagecache_get_page documentation	2020-04-02 09:35:27 -07:00
frame_vector.c
frontswap.c
gup.c	mm/gup: fix __get_user_pages() on fault retry of hugetlb	2020-04-02 09:35:29 -07:00
gup_benchmark.c	mm/gup_benchmark: support pin_user_pages() and related calls	2020-04-02 09:35:27 -07:00
highmem.c
hmm.c	mm: pagewalk: add 'depth' parameter to pte_hole	2020-02-04 03:05:25 +00:00
huge_memory.c	mm/gup: track FOLL_PIN pages	2020-04-02 09:35:27 -07:00
hugetlb.c	mm/gup: rename "nonblocking" to "locked" where proper	2020-04-02 09:35:29 -07:00
hugetlb_cgroup.c	hugetlb_cgroup: fix illegal access to memory	2020-03-29 09:47:05 -07:00
hwpoison-inject.c
init-mm.c
internal.h	mm: swap: make page_evictable() inline	2020-04-02 09:35:27 -07:00
interval_tree.c
Kconfig
Kconfig.debug	mm: add generic ptdump	2020-02-04 03:05:25 +00:00
khugepaged.c	mm/vma: make is_vma_temporary_stack() available for general use	2020-04-02 09:35:29 -07:00
kmemleak-test.c
kmemleak.c	mm/kmemleak.c: use address-of operator on section symbols	2020-04-02 09:35:26 -07:00
ksm.c
list_lru.c	mm: memcg/slab: use mem_cgroup_from_obj()	2020-04-02 09:35:28 -07:00
maccess.c
madvise.c	mm: do not allow MADV_PAGEOUT for CoW pages	2020-03-21 18:56:06 -07:00
Makefile	mm/Makefile: disable KCSAN for kmemleak	2020-04-02 09:35:26 -07:00
mapping_dirty_helpers.c	mm/mapping_dirty_helpers: update huge page-table entry callbacks	2020-04-02 09:35:29 -07:00
memblock.c	memblock: Use __func__ in remaining memblock_dbg() call sites	2020-01-31 10:30:38 -08:00
memcontrol.c	mm: memcg: make memory.oom.group tolerable to task migration	2020-04-02 09:35:29 -07:00
memfd.c
memory-failure.c
memory.c	mm: avoid data corruption on CoW fault into PFN-mapped VMA	2020-03-06 07:06:09 -06:00
memory_hotplug.c	mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled	2020-03-06 07:06:09 -06:00
mempolicy.c	mm/mempolicy.c: fix out of bounds write in mpol_parse_str()	2020-01-31 10:30:36 -08:00
mempool.c
memremap.c	mm/memory_hotplug: poison memmap in remove_pfn_range_from_zone()	2020-02-04 03:05:23 +00:00
memtest.c
migrate.c	mm: pagewalk: add 'depth' parameter to pte_hole	2020-02-04 03:05:25 +00:00
mincore.c	mm: pagewalk: add 'depth' parameter to pte_hole	2020-02-04 03:05:25 +00:00
mlock.c
mm_init.c
mmap.c	mm: Avoid creating virtual address aliases in brk()/mmap()/mremap()	2020-02-20 10:03:14 +00:00
mmu_context.c
mmu_gather.c	asm-generic/tlb: provide MMU_GATHER_TABLE_FREE	2020-02-04 03:05:26 +00:00
mmu_notifier.c	mm/mmu_notifier: silence PROVE_RCU_LIST warnings	2020-03-21 18:56:06 -07:00
mmzone.c
mprotect.c	mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa	2020-03-06 07:06:09 -06:00
mremap.c	mm/vma: make is_vma_temporary_stack() available for general use	2020-04-02 09:35:29 -07:00
msync.c
nommu.c	x86/mm: split vmalloc_sync_all()	2020-03-21 18:56:06 -07:00
oom_kill.c	mm, oom: dump stack of victim when reaping failed	2020-01-31 10:30:38 -08:00
page-writeback.c	mm/gup/writeback: add callbacks for inaccessible pages	2020-04-02 09:35:27 -07:00
page_alloc.c	mm: kmem: rename memcg_kmem_(un)charge() into memcg_kmem_(un)charge_page()	2020-04-02 09:35:28 -07:00
page_counter.c	mm, memcg: prevent memory.min load/store tearing	2020-04-02 09:35:29 -07:00
page_ext.c
page_idle.c
page_io.c	fs: Enable bmap() function to properly return errors	2020-02-03 08:05:37 -05:00
page_isolation.c	mm/page_isolation: fix potential warning from user	2020-01-31 10:30:39 -08:00
page_owner.c
page_poison.c
page_vma_mapped.c	mm/page_vma_mapped.c: explicitly compare pfn for normal, hugetlbfs and THP page	2020-01-31 10:30:38 -08:00
pagewalk.c	x86: mm: avoid allocating struct mm_struct on the stack	2020-02-04 03:05:25 +00:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c	mm, tree-wide: rename put_user_page*() to unpin_user_page*()	2020-01-31 10:30:38 -08:00
ptdump.c	x86: mm: avoid allocating struct mm_struct on the stack	2020-02-04 03:05:25 +00:00
readahead.c
rmap.c	mm/vma: make is_vma_temporary_stack() available for general use	2020-04-02 09:35:29 -07:00
rodata_test.c
shmem.c	tmpfs: deny and force are not huge mount options	2020-02-18 15:07:30 -05:00
shuffle.c
shuffle.h
slab.c
slab.h	mm: kmem: rename (__)memcg_kmem_(un)charge_memcg() to __memcg_kmem_(un)charge()	2020-04-02 09:35:28 -07:00
slab_common.c	mm, memcg: fix build error around the usage of kmem_caches	2020-04-02 09:35:28 -07:00
slob.c
slub.c	slub: relocate freelist pointer to middle of object	2020-04-02 09:35:26 -07:00
sparse-vmemmap.c
sparse.c	mm/sparse: fix kernel crash with pfn_section_valid check	2020-03-29 09:47:06 -07:00
swap.c	mm: swap: use smp_mb__after_atomic() to order LRU bit set	2020-04-02 09:35:28 -07:00
swap_cgroup.c
swap_slots.c	mm/swap_slots.c: assign|reset cache slot by value directly	2020-04-02 09:35:27 -07:00
swap_state.c	mm/swap_state.c: use the same way to count page in [add_to|delete_from]_swap_cache	2020-04-02 09:35:28 -07:00
swapfile.c	mm/swapfile: fix data races in try_to_unuse()	2020-04-02 09:35:27 -07:00
truncate.c
usercopy.c
userfaultfd.c
util.c
vmacache.c
vmalloc.c	x86/mm: split vmalloc_sync_all()	2020-03-21 18:56:06 -07:00
vmpressure.c
vmscan.c	mm: swap: make page_evictable() inline	2020-04-02 09:35:27 -07:00
vmstat.c	mm/gup: /proc/vmstat: pin_user_pages (FOLL_PIN) reporting	2020-04-02 09:35:27 -07:00
workingset.c
z3fold.c	mm/z3fold.c: do not include rwlock.h directly	2020-03-06 07:06:09 -06:00
zbud.c
zpool.c
zsmalloc.c
zswap.c	zswap: potential NULL dereference on error in init_zswap()	2020-01-31 10:30:39 -08:00