Ira Weiny c5d6c45e90 mm/swap: fix release_pages() when releasing devmap pages ... release_pages() is an optimized version of a loop around put_page(). Unfortunately for devmap pages the logic is not entirely correct in release_pages(). This is because device pages can be more than type MEMORY_DEVICE_PUBLIC. There are in fact 4 types, private, public, FS DAX, and PCI P2PDMA. Some of these have specific needs to "put" the page while others do not. This logic to handle any special needs is contained in put_devmap_managed_page(). Therefore all devmap pages should be processed by this function where we can contain the correct logic for a page put. Handle all device type pages within release_pages() by calling put_devmap_managed_page() on all devmap pages. If put_devmap_managed_page() returns true the page has been put and we continue with the next page. A false return of put_devmap_managed_page() means the page did not require special processing and should fall to "normal" processing. This was found via code inspection while determining if release_pages() and the new put_user_pages() could be interchangeable.[1] [1] https://lkml.kernel.org/r/20190523172852.GA27175@iweiny-DESK2.sc.intel.com Link: https://lkml.kernel.org/r/20190605214922.17684-1-ira.weiny@intel.com Cc: Jérôme Glisse <jglisse@redhat.com> Cc: Michal Hocko <mhocko@suse.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>		2019-07-02 11:37:47 -03:00
..
kasan	kasan: initialize tag to 0xff in __kasan_kmalloc	2019-06-01 15:51:31 -07:00
backing-dev.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
balloon_compaction.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
cleancache.c	mm: use octal not symbolic permissions	2018-06-15 07:55:25 +09:00
cma_debug.c	mm/cma_debug.c: fix the break condition in cma_maxchunk_get()	2019-05-14 09:47:45 -07:00
cma.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 98	2019-05-24 17:37:54 +02:00
cma.h
compaction.c	mm, compaction: make sure we isolate a valid PFN	2019-06-01 15:51:32 -07:00
debug_page_ref.c
debug.c	mm: update references to page _refcount	2019-05-14 19:52:47 -07:00
dmapool.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
early_ioremap.c
fadvise.c	vfs: implement readahead(2) using POSIX_FADV_WILLNEED	2018-08-30 20:01:32 +02:00
failslab.c	mm: no need to check return value of debugfs_create functions	2019-03-05 21:07:17 -08:00
filemap.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
frame_vector.c
frontswap.c	mm: use octal not symbolic permissions	2018-06-15 07:55:25 +09:00
gup_benchmark.c	mm/gup: replace get_user_pages_longterm() with FOLL_LONGTERM	2019-05-14 09:47:45 -07:00
gup.c	mm/gup: continue VM_FAULT_RETRY processing even for pre-faults	2019-06-01 15:51:31 -07:00
highmem.c	mm: convert totalram_pages and totalhigh_pages variables to atomic	2018-12-28 12:11:47 -08:00
hmm.c	mm/hmm: Fix error flows in hmm_invalidate_range_start	2019-06-27 13:05:02 -03:00
huge_memory.c	mm/huge_memory.c: make __thp_get_unmapped_area static	2019-05-14 09:47:51 -07:00
hugetlb_cgroup.c	mm: rename page_counter's count/limit into usage/max	2018-06-07 17:34:35 -07:00
hugetlb.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
hwpoison-inject.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
init-mm.c	mm: Allocate the mm_cpumask (mm->cpu_bitmap[]) dynamically based on nr_cpu_ids	2018-07-17 09:35:30 +02:00
internal.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
interval_tree.c
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Kconfig.debug	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
khugepaged.c	mm/mmu_notifier: use correct mmu_notifier events for each invalidation	2019-05-14 09:47:49 -07:00
kmemleak-test.c
kmemleak.c	Merge branch 'core-stacktrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2019-05-06 13:11:48 -07:00
ksm.c	mm/mmu_notifier: use correct mmu_notifier events for each invalidation	2019-05-14 09:47:49 -07:00
list_lru.c	memcg: make it work on sparse non-0-node systems	2019-06-01 15:51:31 -07:00
maccess.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
madvise.c	mm/mmu_notifier: use correct mmu_notifier events for each invalidation	2019-05-14 09:47:49 -07:00
Makefile	mm: shuffle initial free memory to improve memory-side-cache utilization	2019-05-14 19:52:48 -07:00
memblock.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
memcontrol.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
memfd.c	mm: page cache: store only head pages in i_pages	2019-05-14 09:47:45 -07:00
memory_hotplug.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
memory-failure.c	mm: hwpoison: fix thp split handing in soft_offline_in_use_page()	2019-03-05 21:07:13 -08:00
memory.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
mempolicy.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 225	2019-05-30 11:29:56 -07:00
mempool.c	docs/core-api/mm: fix return value descriptions in mm/	2019-03-05 21:07:20 -08:00
memtest.c
migrate.c	mm/mmu_notifier: use correct mmu_notifier events for each invalidation	2019-05-14 09:47:49 -07:00
mincore.c	mm/mincore.c: make mincore() more conservative	2019-05-14 19:52:48 -07:00
mlock.c	mm: remove zone_lru_lock() function, access ->lru_lock directly	2019-03-05 21:07:21 -08:00
mm_init.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
mmap.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
mmu_context.c
mmu_gather.c	asm-generic/tlb: Remove tlb_table_flush()	2019-04-03 10:33:02 +02:00
mmu_notifier.c	mm/mmu_notifier: mmu_notifier_range_update_to_read_only() helper	2019-05-14 09:47:49 -07:00
mmzone.c
mprotect.c	mm/mprotect.c: fix compilation warning because of unused 'mm' variable	2019-05-14 09:47:51 -07:00
mremap.c	mm/mmu_notifier: contextual information for event triggering invalidation	2019-05-14 09:47:49 -07:00
msync.c
nommu.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
oom_kill.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
page_alloc.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
page_counter.c	memcg: introduce memory.min	2018-06-07 17:34:36 -07:00
page_ext.c	memblock: drop memblock_alloc_*_nopanic() variants	2019-03-12 10:04:02 -07:00
page_idle.c	mm: remove zone_lru_lock() function, access ->lru_lock directly	2019-03-05 21:07:21 -08:00
page_io.c	mm/page_io.c: fix polled swap page in	2019-01-04 13:13:48 -08:00
page_isolation.c	mm/page_isolation.c: remove redundant pfn_valid_within() in __first_valid_page()	2019-05-14 09:47:46 -07:00
page_owner.c	mm/page_owner: Simplify stack trace handling	2019-04-29 12:37:50 +02:00
page_poison.c	page_poison: play nicely with KASAN	2019-03-05 21:07:13 -08:00
page_vma_mapped.c	mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly	2018-10-31 08:54:11 -07:00
page-writeback.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
pagewalk.c
percpu-internal.h	percpu: convert chunk hints to be based on pcpu_block_md	2019-03-13 12:25:31 -07:00
percpu-km.c	percpu: set PCPU_BITMAP_BLOCK_SIZE to PAGE_SIZE	2019-03-13 12:25:31 -07:00
percpu-stats.c	percpu: convert chunk hints to be based on pcpu_block_md	2019-03-13 12:25:31 -07:00
percpu-vm.c
percpu.c	Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu	2019-05-13 15:34:03 -07:00
pgtable-generic.c	x86/mm: Page size aware flush_tlb_mm_range()	2018-10-09 16:51:11 +02:00
process_vm_access.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
quicklist.c
readahead.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
rmap.c	mm/rmap.c: use the pra.mapcount to do the check	2019-05-14 09:47:49 -07:00
rodata_test.c
shmem.c	mm: page cache: store only head pages in i_pages	2019-05-14 09:47:45 -07:00
shuffle.c	mm: maintain randomization of page free lists	2019-05-14 19:52:48 -07:00
shuffle.h	mm: maintain randomization of page free lists	2019-05-14 19:52:48 -07:00
slab_common.c	mm: add support for kmem caches in DMA32 zone	2019-03-29 10:01:37 -07:00
slab.c	slab: remove /proc/slab_allocators	2019-05-16 15:51:55 -07:00
slab.h	mm: add support for kmem caches in DMA32 zone	2019-03-29 10:01:37 -07:00
slob.c	slob: use slab_list instead of lru	2019-05-14 09:47:44 -07:00
slub.c	mm/slub.c: update the comment about slab frozen	2019-05-14 09:47:45 -07:00
sparse-vmemmap.c	mm: remove include/linux/bootmem.h	2018-10-31 08:54:16 -07:00
sparse.c	mm/sparse.c: clean up obsolete code comment	2019-05-14 09:47:48 -07:00
swap_cgroup.c
swap_slots.c	mm, swap, get_swap_pages: use entry_size instead of cluster in parameter	2018-08-22 10:52:44 -07:00
swap_state.c	mm: page cache: store only head pages in i_pages	2019-05-14 09:47:45 -07:00
swap.c	mm/swap: fix release_pages() when releasing devmap pages	2019-07-02 11:37:47 -03:00
swapfile.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
truncate.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
usercopy.c	mm/usercopy.c: no check page span for stack objects	2019-01-08 17:15:11 -08:00
userfaultfd.c	hugetlb: use same fault hash key for shared and private mappings	2019-05-14 09:47:48 -07:00
util.c	prctl_set_mm: downgrade mmap_sem to read lock	2019-06-01 15:51:31 -07:00
vmacache.c	mm: get rid of vmacache_flush_all() entirely	2018-09-13 15:18:04 -10:00
vmalloc.c	mm/vmalloc.c: fix typo in comment	2019-06-01 15:51:31 -07:00
vmpressure.c	mm/vmpressure.c: convert to use match_string() helper	2018-06-07 17:34:36 -07:00
vmscan.c	mm: memcontrol: make cgroup stats and events query API explicitly local	2019-05-14 19:52:53 -07:00
vmstat.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00
workingset.c	mm: memcontrol: make cgroup stats and events query API explicitly local	2019-05-14 19:52:53 -07:00
z3fold.c	z3fold: fix sheduling while atomic	2019-06-01 15:51:31 -07:00
zbud.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
zpool.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
zsmalloc.c	mm/zsmalloc.c: fix fall-through annotation	2018-10-26 16:26:35 -07:00
zswap.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00