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Gaowei Pu ff68dac6d6 mm/mmap.c: use IS_ERR_VALUE to check return value of get_unmapped_area 
get_unmapped_area() returns an address or -errno on failure.  Historically
we have checked for the failure by offset_in_page() which is correct but
quite hard to read.  Newer code started using IS_ERR_VALUE which is much
easier to read.  Convert remaining users of offset_in_page as well.

[mhocko@suse.com: rewrite changelog]
[mhocko@kernel.org: fix mremap.c and uprobes.c sites also]
Link: http://lkml.kernel.org/r/20191012102512.28051-1-pugaowei@gmail.com
Signed-off-by: Gaowei Pu <pugaowei@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-01 06:29:19 -08:00
..
kasan
mm: introduce compound_nr()
2019-09-24 15:54:08 -07:00
backing-dev.c
bdi: Do not use freezable workqueue
2019-10-06 09:11:35 -06:00
balloon_compaction.c
mm/balloon_compaction: suppress allocation warnings
2019-09-04 07:42:01 -04:00
cleancache.c
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
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
mm/cma.c: fail if fixed declaration can't be honored
2019-07-16 19:23:21 -07:00
cma.h
…
compaction.c
mm, compaction: fix wrong pfn handling in __reset_isolation_pfn()
2019-10-14 15:04:01 -07:00
debug_page_ref.c
…
debug.c
mm/debug.c: PageAnon() is true for PageKsm() pages
2019-11-15 18:34:00 -08:00
dmapool.c
mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options
2019-07-12 11:05:46 -07:00
early_ioremap.c
mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep
2017-12-11 14:54:44 +01:00
fadvise.c
fs: Export generic_fadvise()
2019-08-30 22:43:58 -07:00
failslab.c
mm/failslab.c: by default, do not fail allocations with direct reclaim only
2019-07-12 11:05:43 -07:00
filemap.c
mm: drop mmap_sem before calling balance_dirty_pages() in write fault
2019-12-01 06:29:18 -08:00
frame_vector.c
mm: untag user pointers in get_vaddr_frames
2019-09-25 17:51:41 -07:00
frontswap.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482
2019-06-19 17:09:52 +02:00
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.c: fix comments of __get_user_pages() and get_user_pages_remote()
2019-12-01 06:29:18 -08:00
highmem.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
hmm.c
mm/hmm: remove hmm_range_dma_map and hmm_range_dma_unmap
2019-11-23 19:56:45 -04:00
huge_memory.c
mm/thp: fix node page state in split_huge_page_to_list()
2019-10-19 06:32:32 -04:00
hugetlb_cgroup.c
mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
2019-11-15 18:34:00 -08:00
hugetlb.c
hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()
2019-10-19 06:32:32 -04:00
hwpoison-inject.c
hwpoison-inject: no need to check return value of debugfs_create functions
2019-06-03 15:39:40 +02:00
init-mm.c
mm/init-mm.c: include <linux/mman.h> for vm_committed_as_batch
2019-10-19 06:32:32 -04:00
internal.h
mm/mmap.c: rb_parent is not necessary in __vma_link_list()
2019-12-01 06:29:19 -08:00
interval_tree.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 248
2019-06-19 17:09:08 +02:00
Kconfig
hmm related patches for 5.5
2019-11-30 10:33:14 -08:00
Kconfig.debug
mm, page_owner, debug_pagealloc: save and dump freeing stack trace
2019-09-24 15:54:08 -07:00
khugepaged.c
mm,thp: recheck each page before collapsing file THP
2019-11-15 18:34:00 -08:00
kmemleak-test.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
kmemleak.c
kmemleak: Do not corrupt the object_list during clean-up
2019-10-14 08:56:16 -07:00
ksm.c
mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()
2019-11-22 09:11:18 -08:00
list_lru.c
mm: memcg/slab: stop setting page->mem_cgroup pointer for slab pages
2019-07-12 11:05:44 -07:00
maccess.c
uaccess: Add strict non-pagefault kernel-space read function
2019-11-02 12:39:12 -07:00
madvise.c
mm: fix trying to reclaim unevictable lru page when calling madvise_pageout
2019-11-15 18:33:59 -08:00
Makefile
mm: Add write-protect and clean utilities for address space ranges
2019-11-06 13:03:36 +01:00
mapping_dirty_helpers.c
mm: Add write-protect and clean utilities for address space ranges
2019-11-06 13:03:36 +01:00
memblock.c
mm: memblock: do not enforce current limit for memblock_phys* family
2019-10-19 06:32:32 -04:00
memcontrol.c
mm: vmscan: memcontrol: remove mem_cgroup_select_victim_node()
2019-12-01 06:29:18 -08:00
memfd.c
mm: page cache: store only head pages in i_pages
2019-09-24 15:54:08 -07:00
memory_hotplug.c
mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span()
2019-11-22 09:11:18 -08:00
memory-failure.c
mm/memory-failure.c: don't access uninitialized memmaps in memory_failure()
2019-10-19 06:32:31 -04:00
memory.c
rss_stat: add support to detect RSS updates of external mm
2019-12-01 06:29:18 -08:00
mempolicy.c
mm: mempolicy: fix the wrong return value and potential pages leak of mbind
2019-11-15 18:33:59 -08:00
mempool.c
docs/core-api/mm: fix return value descriptions in mm/
2019-03-05 21:07:20 -08:00
memremap.c
mm/memunmap: don't access uninitialized memmap in memunmap_pages()
2019-10-19 06:32:32 -04:00
memtest.c
…
migrate.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mincore.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mlock.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mm_init.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
mmap.c
mm/mmap.c: use IS_ERR_VALUE to check return value of get_unmapped_area
2019-12-01 06:29:19 -08:00
mmu_context.c
…
mmu_gather.c
mm: remove quicklist page table caches
2019-09-24 15:54:09 -07:00
mmu_notifier.c
hmm related patches for 5.5
2019-11-30 10:33:14 -08:00
mmzone.c
…
mprotect.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mremap.c
mm/mmap.c: use IS_ERR_VALUE to check return value of get_unmapped_area
2019-12-01 06:29:19 -08:00
msync.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
nommu.c
mm/mmap.c: rb_parent is not necessary in __vma_link_list()
2019-12-01 06:29:19 -08:00
oom_kill.c
mm: introduce MADV_COLD
2019-09-25 17:51:41 -07:00
page_alloc.c
mm/page_alloc.c: ratelimit allocation failure warnings more aggressively
2019-11-06 08:47:50 -08:00
page_counter.c
memcg: introduce memory.min
2018-06-07 17:34:36 -07:00
page_ext.c
mm, page_owner: fix off-by-one error in __set_page_owner_handle()
2019-10-14 15:04:00 -07:00
page_idle.c
mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
2019-06-29 16:43:45 +08:00
page_io.c
mm/page_io.c: do not free shared swap slots
2019-11-15 18:34:00 -08:00
page_isolation.c
mm/page_isolation.c: change the prototype of undo_isolate_page_range()
2019-07-12 11:05:43 -07:00
page_owner.c
mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
2019-10-19 06:32:31 -04:00
page_poison.c
mm/page_poison.c: fix a typo in a comment
2019-09-24 15:54:08 -07:00
page_vma_mapped.c
mm: introduce page_size()
2019-09-24 15:54:08 -07:00
page-writeback.c
writeback, memcg: Implement foreign dirty flushing
2019-08-27 09:22:38 -06:00
pagewalk.c
mm: Add a walk_page_mapping() function to the pagewalk code
2019-11-06 13:02:43 +01:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
percpu-stats.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
percpu-vm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
percpu.c
percpu: Use struct_size() helper
2019-09-04 13:40:49 -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
readahead.c
treewide: Add SPDX license identifier for missed files
2019-05-21 10:50:45 +02:00
rmap.c
mm/rmap.c: reuse mergeable anon_vma as parent when fork
2019-12-01 06:29:19 -08:00
rodata_test.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
2019-06-05 17:37:17 +02:00
shmem.c
shmem: pin the file in shmem_fault() if mmap_sem is dropped
2019-12-01 06:29:18 -08:00
shuffle.c
mm: fix -Wmissing-prototypes warnings
2019-10-07 15:47:19 -07:00
shuffle.h
mm: maintain randomization of page free lists
2019-05-14 19:52:48 -07:00
slab_common.c
mm, slab_common: use enum kmalloc_cache_type to iterate over kmalloc caches
2019-12-01 06:29:17 -08:00
slab.c
mm, slab: remove unused kmalloc_size()
2019-12-01 06:29:17 -08:00
slab.h
mm, slab: make kmalloc_info[] contain all types of names
2019-12-01 06:29:17 -08:00
slob.c
mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)
2019-10-07 15:47:20 -07:00
slub.c
mm/slub.c: clean up validate_slab()
2019-12-01 06:29:18 -08:00
sparse-vmemmap.c
mm/sparsemem: convert kmalloc_section_memmap() to populate_section_memmap()
2019-07-18 17:08:07 -07:00
sparse.c
mm: fix -Wmissing-prototypes warnings
2019-10-07 15:47:19 -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
2019-09-24 15:54:08 -07:00
swap.c
mm/swap.c: piggyback lru_add_drain_all() calls
2019-12-01 06:29:19 -08:00
swapfile.c
mm, swap: disallow swapon() on zoned block devices
2019-12-01 06:29:18 -08:00
truncate.c
mm/thp: allow dropping THP from page cache
2019-10-19 06:32:33 -04:00
usercopy.c
usercopy: Avoid HIGHMEM pfn warning
2019-09-17 15:20:17 -07:00
userfaultfd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
2019-06-19 17:09:53 +02:00
util.c
mm/mmap.c: rb_parent is not necessary in __vma_link_list()
2019-12-01 06:29:19 -08:00
vmacache.c
mm: get rid of vmacache_flush_all() entirely
2018-09-13 15:18:04 -10:00
vmalloc.c
bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY
2019-11-18 11:41:59 +01:00
vmpressure.c
mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
2019-10-07 15:47:19 -07:00
vmscan.c
mm: vmscan: memcontrol: remove mem_cgroup_select_victim_node()
2019-12-01 06:29:18 -08:00
vmstat.c
mm, vmstat: reduce zone->lock holding time by /proc/pagetypeinfo
2019-11-06 08:47:50 -08:00
workingset.c
mm: workingset: fix vmstat counters for shadow nodes
2019-08-13 16:06:52 -07:00
z3fold.c
mm/z3fold.c: claim page in the beginning of free
2019-10-07 15:47:19 -07:00
zbud.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
zpool.c
zpool: add malloc_support_movable to zpool_driver
2019-09-24 15:54:12 -07:00
zsmalloc.c
mm/zsmalloc.c: fix a -Wunused-function warning
2019-09-24 15:54:12 -07:00
zswap.c
zswap: do not map same object twice
2019-09-24 15:54:12 -07:00