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e6b0a7b357
linux/mm
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Charan Teja Kalla e6b0a7b357 Revert "mm: madvise: skip unmapped vma holes passed to process_madvise" 
This reverts commit 08095d6310 ("mm: madvise: skip unmapped vma holes
passed to process_madvise") as process_madvise() fails to return the
exact processed bytes in other cases too.

As an example: if process_madvise() hits mlocked pages after processing
some initial bytes passed in [start, end), it just returns EINVAL
although some bytes are processed.  Thus making an exception only for
ENOMEM is partially fixing the problem of returning the proper advised
bytes.

Thus revert this patch and return proper bytes advised.

Link: https://lkml.kernel.org/r/e73da1304a88b6a8a11907045117cccf4c2b8374.1648046642.git.quic_charante@quicinc.com
Fixes: 08095d6310 ("mm: madvise: skip unmapped vma holes passed to process_madvise")
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-04-01 11:46:09 -07:00
..
damon Folio changes for 5.18 2022-03-22 17:03:12 -07:00
kasan kasan: disable LOCKDEP when printing reports 2022-03-24 19:06:50 -07:00
kfence kfence: allow use of a deferrable timer 2022-03-22 15:57:11 -07:00
backing-dev.c remove congestion tracking framework 2022-03-22 15:57:01 -07:00
balloon_compaction.c mm/balloon_compaction: make balloon page compaction callbacks static 2022-03-28 16:52:57 -04:00
bootmem_info.c bootmem: Use page->index instead of page->freelist 2022-01-06 12:27:03 +01:00
cma_debug.c mm/cma: change cma mutex to irq safe spinlock 2021-05-05 11:27:21 -07:00
cma_sysfs.c mm: cma: support sysfs 2021-05-05 11:27:24 -07:00
cma.c mm/cma: provide option to opt out from exposing pages on activation failure 2022-03-22 15:57:09 -07:00
cma.h mm/cma: provide option to opt out from exposing pages on activation failure 2022-03-22 15:57:09 -07:00
compaction.c mm: compaction: cleanup the compaction trace events 2022-03-22 15:57:09 -07:00
debug_page_ref.c
debug_vm_pgtable.c mm/debug_vm_pgtable: remove pte entry from the page table 2022-02-04 09:25:04 -08:00
debug.c mm: unexport page_init_poison 2022-03-24 19:06:45 -07:00
dmapool.c mm/dmapool.c: revert "make dma pool to use kmalloc_node" 2022-01-15 16:30:28 +02:00
early_ioremap.c mm/early_ioremap: declare early_memremap_pgprot_adjust() 2022-03-22 15:57:11 -07:00
fadvise.c remove inode_congested() 2022-03-22 15:57:01 -07:00
failslab.c
filemap.c Fix buffered write page prefaulting 2022-03-26 12:41:52 -07:00
folio-compat.c mm/rmap: Convert rmap_walk() to take a folio 2022-03-21 13:01:35 -04:00
frontswap.c frontswap: remove support for multiple ops 2022-01-22 08:33:38 +02:00
gup_test.c selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages 2021-05-05 11:27:26 -07:00
gup_test.h selftests/vm: gup_test: fix test flag 2021-05-05 11:27:26 -07:00
gup.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
highmem.c mm/highmem: remove unnecessary done label 2022-03-22 15:57:11 -07:00
hmm.c mm/hmm.c: remove unneeded local variable ret 2022-03-22 15:57:12 -07:00
huge_memory.c mm/huge_memory: remove stale locking logic from __split_huge_pmd() 2022-03-24 19:06:51 -07:00
hugetlb_cgroup.c hugetlb: add hugetlb.*.numa_stat file 2022-01-15 16:30:29 +02:00
hugetlb_vmemmap.c mm: hugetlb: replace hugetlb_free_vmemmap_enabled with a static_key 2022-03-22 15:57:08 -07:00
hugetlb_vmemmap.h mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate 2021-06-30 20:47:25 -07:00
hugetlb.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
hwpoison-inject.c mm/hwpoison: avoid the impact of hwpoison_filter() return value on mce handler 2022-03-22 15:57:07 -07:00
init-mm.c kernel/fork: Initialize mm's PASID 2022-02-14 19:51:47 +01:00
internal.h Folio changes for 5.18 2022-03-22 17:03:12 -07:00
interval_tree.c mm/interval_tree: add comments to improve code readability 2021-04-30 11:20:38 -07:00
io-mapping.c mm: add a io_mapping_map_user helper 2021-04-30 11:20:39 -07:00
ioremap.c mm: move ioremap_page_range to vmalloc.c 2021-09-08 11:50:24 -07:00
Kconfig mm: generalize ARCH_HAS_FILTER_PGPROT 2022-03-24 19:06:51 -07:00
Kconfig.debug mm: page table check 2022-01-15 16:30:28 +02:00
khugepaged.c mm/khugepaged: remove reuse_swap_page() usage 2022-03-24 19:06:51 -07:00
kmemleak.c mm/kmemleak: avoid scanning potential huge holes 2022-02-04 09:25:05 -08:00
ksm.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
list_lru.c mm/list_lru: optimize memcg_reparent_list_lru_node() 2022-03-22 15:57:08 -07:00
maccess.c asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
madvise.c Revert "mm: madvise: skip unmapped vma holes passed to process_madvise" 2022-04-01 11:46:09 -07:00
Makefile mm: move the migrate_vma_* device migration code into its own file 2022-03-03 12:47:33 -05:00
mapping_dirty_helpers.c mm: move tlb_flush_pending inline helpers to mm_inline.h 2022-01-15 16:30:27 +02:00
memblock.c memblock: test suite and a small cleanup 2022-03-27 13:36:06 -07:00
memcontrol.c ptrace: Cleanups for v5.18 2022-03-28 17:29:53 -07:00
memfd.c memfd: fix F_SEAL_WRITE after shmem huge page allocated 2022-03-05 11:08:32 -08:00
memory_hotplug.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
memory-failure.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
memory.c mm: unmap_mapping_range_tree() with i_mmap_rwsem shared 2022-03-24 19:06:51 -07:00
mempolicy.c mempolicy: mbind_range() set_policy() after vma_merge() 2022-03-22 15:57:09 -07:00
mempool.c mm: remove spurious blkdev.h includes 2021-10-18 06:17:01 -06:00
memremap.c mm: delete __ClearPageWaiters() 2022-03-24 19:06:45 -07:00
memtest.c
migrate_device.c mm/migrate: Convert remove_migration_ptes() to folios 2022-03-21 13:01:35 -04:00
migrate.c mm/migration: add trace events for base page and HugeTLB migrations 2022-03-24 19:06:45 -07:00
mincore.c
mlock.c ucounts: Fix shm ucounts 2022-03-28 17:10:07 -07:00
mm_init.c include/linux/page-flags-layout.h: cleanups 2021-04-30 11:20:42 -07:00
mmap_lock.c mm: mmap_lock: fix disabling preemption directly 2021-07-23 17:43:28 -07:00
mmap.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
mmu_gather.c mm: move tlb_flush_pending inline helpers to mm_inline.h 2022-01-15 16:30:27 +02:00
mmu_notifier.c
mmzone.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
mprotect.c memory tiering: skip to scan fast memory 2022-03-22 15:57:09 -07:00
mremap.c mm/mremap:: use vma_lookup() instead of find_vma() 2022-03-22 15:57:05 -07:00
msync.c mm/msync: exit early when the flags is an MS_ASYNC and start < vm_start 2021-04-30 11:20:37 -07:00
nommu.c Merge branch 'akpm' (patches from Andrew) 2021-11-06 14:08:17 -07:00
oom_kill.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
page_alloc.c mm: page_alloc: validate buddy before check its migratetype. 2022-03-30 15:45:43 -07:00
page_counter.c mm/page_counter: remove an incorrect call to propagate_protected_usage() 2022-01-15 16:30:27 +02:00
page_ext.c mm: make some vars and functions static or __init 2022-01-15 16:30:31 +02:00
page_idle.c mm/rmap: Constify the rmap_walk_control argument 2022-03-21 13:01:35 -04:00
page_io.c Filesystem folio changes for 5.18 2022-03-22 18:26:56 -07:00
page_isolation.c Revert "mm/page_isolation: unset migratetype directly for non Buddy page" 2022-02-04 09:25:04 -08:00
page_owner.c mm/page_owner.c: record tgid 2022-03-24 19:06:44 -07:00
page_poison.c
page_reporting.c mm/page_reporting: allow driver to specify reporting order 2021-06-29 10:53:47 -07:00
page_reporting.h mm/page_reporting: export reporting order as module parameter 2021-06-29 10:53:47 -07:00
page_table_check.c mm/page_table_check.c: use strtobool for param parsing 2022-03-22 15:57:11 -07:00
page_vma_mapped.c mm: Convert page_vma_mapped_walk to work on PFNs 2022-03-21 12:59:02 -04:00
page-writeback.c mm: warn on deleting redirtied only if accounted 2022-03-24 19:06:51 -07:00
pagewalk.c mm: pagewalk: fix walk for hugepage tables 2021-06-29 10:53:49 -07:00
percpu-internal.h mm: memcg/percpu: account extra objcg space to memory cgroups 2022-01-15 16:30:31 +02:00
percpu-km.c percpu: flush tlb in pcpu_reclaim_populated() 2021-07-04 18:30:17 +00:00
percpu-stats.c mm: use vmalloc_array and vcalloc for array allocations 2022-03-08 09:30:46 -05:00
percpu-vm.c percpu: flush tlb in pcpu_reclaim_populated() 2021-07-04 18:30:17 +00:00
percpu.c bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
pgalloc-track.h mm: fix typos in comments 2021-05-07 00:26:35 -07:00
pgtable-generic.c mm: move tlb_flush_pending inline helpers to mm_inline.h 2022-01-15 16:30:27 +02:00
process_vm_access.c mm/process_vm_access.c: remove duplicate include 2021-05-05 11:27:27 -07:00
ptdump.c mm: sparsemem: use page table lock to protect kernel pmd operations 2022-03-22 15:57:08 -07:00
readahead.c Filesystem folio changes for 5.18 2022-03-22 18:26:56 -07:00
rmap.c mm: fix race between MADV_FREE reclaim and blkdev direct IO read 2022-03-24 19:06:51 -07:00
rodata_test.c
secretmem.c fs: Convert __set_page_dirty_no_writeback to noop_dirty_folio 2022-03-16 13:37:05 -04:00
shmem.c Filesystem folio changes for 5.18 2022-03-22 18:26:56 -07:00
shuffle.c
shuffle.h mm/shuffle: fix section mismatch warning 2021-05-22 15:09:07 -10:00
slab_common.c mm/slab_common: use helper function is_power_of_2() 2022-02-21 11:38:12 +01:00
slab.c mm: kfence: fix missing objcg housekeeping for SLAB 2022-03-27 18:47:00 -07:00
slab.h mm: introduce kmem_cache_alloc_lru 2022-03-22 15:57:03 -07:00
slob.c slab updates for 5.18 2022-03-23 12:33:21 -07:00
slub.c slab updates for 5.18 2022-03-23 12:33:21 -07:00
sparse-vmemmap.c mm: sparsemem: move vmemmap related to HugeTLB to CONFIG_HUGETLB_PAGE_FREE_VMEMMAP 2022-03-22 15:57:08 -07:00
sparse.c mm/sparse: make mminit_validate_memmodel_limits() static 2022-03-22 15:57:05 -07:00
swap_cgroup.c mm: use vmalloc_array and vcalloc for array allocations 2022-03-08 09:30:46 -05:00
swap_slots.c treewide: Add missing includes masked by cgroup -> bpf dependency 2021-12-03 10:58:13 -08:00
swap_state.c Filesystem folio changes for 5.18 2022-03-22 18:26:56 -07:00
swap.c mm: delete __ClearPageWaiters() 2022-03-24 19:06:45 -07:00
swapfile.c mm/swapfile: remove stale reuse_swap_page() 2022-03-24 19:06:51 -07:00
truncate.c Filesystem folio changes for 5.18 2022-03-22 18:26:56 -07:00
usercopy.c Merge branch 'akpm' (patches from Andrew) 2022-03-22 16:11:53 -07:00
userfaultfd.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
util.c ARM: 2022-03-24 11:58:57 -07:00
vmacache.c
vmalloc.c kasan, vmalloc: only tag normal vmalloc allocations 2022-03-24 19:06:48 -07:00
vmpressure.c mm/vmpressure: fix data-race with memcg->socket_pressure 2021-11-06 13:30:40 -07:00
vmscan.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
vmstat.c mm: only re-generate demotion targets when a numa node changes its N_CPU state 2022-03-22 15:57:11 -07:00
workingset.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
z3fold.c mm/z3fold: add kerneldoc fields for z3fold_pool 2021-07-01 11:06:03 -07:00
zbud.c mm/zbud: add kerneldoc fields for zbud_pool 2021-07-01 11:06:03 -07:00
zpool.c zpool: remove the list of pools_head 2022-01-15 16:30:31 +02:00
zsmalloc.c zsmalloc: replace get_cpu_var with local_lock 2022-01-22 08:33:37 +02:00
zswap.c mm/zswap.c: allow handling just same-value filled pages 2022-03-22 15:57:11 -07:00