Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Ard Biesheuvel 3e04040df6 Revert "mm/page_alloc: fix memmap_init_zone pageblock alignment" ... This reverts commit 864b75f9d6. Commit 864b75f9d6 ("mm/page_alloc: fix memmap_init_zone pageblock alignment") modified the logic in memmap_init_zone() to initialize struct pages associated with invalid PFNs, to appease a VM_BUG_ON() in move_freepages(), which is redundant by its own admission, and dereferences struct page fields to obtain the zone without checking whether the struct pages in question are valid to begin with. Commit 864b75f9d6 only makes it worse, since the rounding it does may cause pfn assume the same value it had in a prior iteration of the loop, resulting in an infinite loop and a hang very early in the boot. Also, since it doesn't perform the same rounding on start_pfn itself but only on intermediate values following an invalid PFN, we may still hit the same VM_BUG_ON() as before. So instead, let's fix this at the core, and ensure that the BUG check doesn't dereference struct page fields of invalid pages. Fixes: 864b75f9d6 ("mm/page_alloc: fix memmap_init_zone pageblock alignment") Tested-by: Jan Glauber <jglauber@cavium.com> Tested-by: Shanker Donthineni <shankerd@codeaurora.org> Cc: Daniel Vacek <neelx@redhat.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Michal Hocko <mhocko@suse.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Pavel Tatashin <pasha.tatashin@oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2018-03-14 16:33:28 -07:00
..
kasan	kasan: fix prototype author email address	2018-02-06 18:32:43 -08:00
backing-dev.c	Revert "bdi: add error handle for bdi_debug_register"	2017-12-21 10:01:30 -07:00
balloon_compaction.c
bootmem.c	mm: docs: fix parameter names mismatch	2018-02-06 18:32:48 -08:00
cleancache.c
cma.c	mm/cma.c: change pr_info to pr_err for cma_alloc fail log	2017-11-15 18:21:03 -08:00
cma.h
cma_debug.c
compaction.c	mm/compaction.c: fix comment for try_to_compact_pages()	2018-01-31 17:18:39 -08:00
debug.c	mm/debug.c: provide useful debugging information for VM_BUG	2018-01-04 16:45:09 -08:00
debug_page_ref.c
dmapool.c
early_ioremap.c	mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep	2017-12-11 14:54:44 +01:00
fadvise.c	mm/fadvise: discard partial page if endbyte is also EOF	2018-01-31 17:18:39 -08:00
failslab.c
filemap.c	mm/filemap.c: remove include of hardirq.h	2018-01-31 17:18:36 -08:00
frame_vector.c	mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'	2017-12-14 16:00:48 -08:00
frontswap.c
gup.c	mm/gup.c: teach get_user_pages_unlocked to handle FOLL_NOWAIT	2018-03-09 16:40:01 -08:00
gup_benchmark.c	mm: add infrastructure for get_user_pages_fast() benchmarking	2017-11-17 16:10:04 -08:00
highmem.c
hmm.c	libnvdimm for 4.16	2018-02-06 10:41:33 -08:00
huge_memory.c	mm/thp: remove pmd_huge_split_prepare()	2018-01-31 17:18:38 -08:00
hugetlb.c	hugetlb: fix surplus pages accounting	2018-03-09 16:40:01 -08:00
hugetlb_cgroup.c
hwpoison-inject.c	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
init-mm.c
internal.h	Revert "mm, thp: Do not make pmd/pud dirty without a reason"	2017-11-29 09:01:01 -08:00
interval_tree.c	mm/interval_tree.c: use vma_pages() helper	2018-01-31 17:18:37 -08:00
Kconfig	mm: relax deferred struct page requirements	2018-01-31 17:18:36 -08:00
Kconfig.debug	kmemcheck: rip it out	2017-11-15 18:21:05 -08:00
khugepaged.c	mm: thp: use down_read_trylock() in khugepaged to avoid long block	2018-01-31 17:18:38 -08:00
kmemleak-test.c
kmemleak.c	mm: kmemleak: remove unused hardirq.h	2018-01-31 17:18:36 -08:00
ksm.c	mm: docs: fixup punctuation	2018-02-06 18:32:48 -08:00
list_lru.c	mm/list_lru.c: mark expected switch fall-through	2017-11-15 18:21:07 -08:00
maccess.c	mm: docs: fix parameter names mismatch	2018-02-06 18:32:48 -08:00
madvise.c	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
Makefile	mm: add infrastructure for get_user_pages_fast() benchmarking	2017-11-17 16:10:04 -08:00
memblock.c	mm/memblock.c: hardcode the end_pfn being -1	2018-03-09 16:40:01 -08:00
memcontrol.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
memory-failure.c	x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages	2018-02-13 16:25:06 +01:00
memory.c	mm: hide a #warning for COMPILE_TEST	2018-02-16 09:41:36 -08:00
memory_hotplug.c	libnvdimm for 4.16	2018-02-06 10:41:33 -08:00
mempolicy.c	hugetlb, mbind: fall back to default policy if vma is NULL	2018-01-31 17:18:40 -08:00
mempool.c	kasan: detect invalid frees for large mempool objects	2018-02-06 18:32:43 -08:00
memtest.c
migrate.c	mm, hugetlb: do not rely on overcommit limit during migration	2018-01-31 17:18:40 -08:00
mincore.c
mlock.c	mm, mlock, vmscan: no more skipping pagevecs	2018-02-21 15:35:42 -08:00
mm_init.c
mmap.c	mm, oom_reaper: fix memory corruption	2017-12-14 16:00:49 -08:00
mmu_context.c
mmu_notifier.c	mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks	2018-01-31 17:18:38 -08:00
mmzone.c
mprotect.c	mm: numa: do not trap faults on shared data section pages.	2018-01-31 17:18:40 -08:00
mremap.c
msync.c
nobootmem.c
nommu.c	mm: docs: fixup punctuation	2018-02-06 18:32:48 -08:00
oom_kill.c	mm, oom: avoid reaping only for mm's with blockable invalidate callbacks	2018-01-31 17:18:38 -08:00
page-writeback.c	Revert "mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical"	2017-11-29 18:40:43 -08:00
page_alloc.c	Revert "mm/page_alloc: fix memmap_init_zone pageblock alignment"	2018-03-14 16:33:28 -07:00
page_counter.c
page_ext.c	mm/page_ext.c: make page_ext_init a noop when CONFIG_PAGE_EXTENSION but nothing uses it	2018-01-31 17:18:39 -08:00
page_idle.c
page_io.c	block: convert to bio_first_bvec_all & bio_first_page_all	2018-01-06 09:18:00 -07:00
page_isolation.c	mm: distinguish CMA and MOVABLE isolation in has_unmovable_pages()	2017-11-15 18:21:02 -08:00
page_owner.c	mm/page_owner.c: clean up init_pages_in_zone()	2018-01-31 17:18:39 -08:00
page_poison.c
page_vma_mapped.c	mm, page_vma_mapped: Introduce pfn_in_hpage()	2018-01-22 12:15:57 -08:00
pagewalk.c	mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors	2018-02-06 18:32:48 -08:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c	mm: remove __GFP_COLD	2017-11-15 18:21:06 -08:00
percpu.c	percpu: hack to let the CRIS architecture to boot until they clean up	2017-11-27 12:53:12 -08:00
pgtable-generic.c	mm: do not lose dirty and accessed bits in pmdp_invalidate()	2018-01-31 17:18:38 -08:00
process_vm_access.c	mm: docs: add blank lines to silence sphinx "Unexpected indentation" errors	2018-02-06 18:32:48 -08:00
quicklist.c
readahead.c
rmap.c	mm: remove cold parameter from free_hot_cold_page*	2017-11-15 18:21:06 -08:00
rodata_test.c
shmem.c	shmem: add sealing support to hugetlb-backed memfd	2018-01-31 17:18:39 -08:00
slab.c	kasan: don't use __builtin_return_address(1)	2018-02-06 18:32:43 -08:00
slab.h	Currently, hardened usercopy performs dynamic bounds checking on slab	2018-02-03 16:25:42 -08:00
slab_common.c	Currently, hardened usercopy performs dynamic bounds checking on slab	2018-02-03 16:25:42 -08:00
slob.c	slab, slub, slob: add slab_flags_t	2017-11-15 18:21:01 -08:00
slub.c	kasan: don't use __builtin_return_address(1)	2018-02-06 18:32:43 -08:00
sparse-vmemmap.c	mm: merge vmem_altmap_alloc into altmap_alloc_block_buf	2018-01-08 11:46:23 -08:00
sparse.c	libnvdimm for 4.16	2018-02-06 10:41:33 -08:00
swap.c	mm/swap.c: make functions and their kernel-doc agree (again)	2018-02-21 15:35:43 -08:00
swap_cgroup.c
swap_slots.c	mm/swap_slots.c: fix race conditions in swap_slots cache init	2017-11-15 18:21:03 -08:00
swap_state.c	mm: remove cold parameter for release_pages	2017-11-15 18:21:06 -08:00
swapfile.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
truncate.c	mm: add unmap_mapping_pages()	2018-01-31 17:18:37 -08:00
usercopy.c	usercopy: WARN() on slab cache usercopy region violations	2018-01-15 12:07:48 -08:00
userfaultfd.c	mm/userfaultfd.c: remove duplicate include	2018-02-06 18:32:47 -08:00
util.c	new primitive: vmemdup_user()	2018-01-07 13:06:15 -05:00
vmacache.c
vmalloc.c	vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems	2018-02-21 15:35:43 -08:00
vmpressure.c
vmscan.c	mm, mlock, vmscan: no more skipping pagevecs	2018-02-21 15:35:42 -08:00
vmstat.c	mm, sysctl: make NUMA stats configurable	2017-11-15 18:21:07 -08:00
workingset.c	mm, truncate: do not check mapping for every page being truncated	2017-11-15 18:21:06 -08:00
z3fold.c	mm: docs: fix parameter names mismatch	2018-02-06 18:32:48 -08:00
zbud.c	mm: docs: fix parameter names mismatch	2018-02-06 18:32:48 -08:00
zpool.c	mm/zpool.c: zpool_evictable: fix mismatch in parameter name and kernel-doc	2018-02-21 15:35:43 -08:00
zsmalloc.c	zsmalloc: use U suffix for negative literals being shifted	2018-01-31 17:18:39 -08:00
zswap.c	mm, swap, frontswap: fix THP swap if frontswap enabled	2018-02-21 15:35:43 -08:00