Oleg Nesterov 32e4e6d5cb mm/mmap.c: expand_downwards: don't require the gap if !vm_prev ... expand_stack(vma) fails if address < stack_guard_gap even if there is no vma->vm_prev. I don't think this makes sense, and we didn't do this before the recent commit 1be7107fbe ("mm: larger stack guard gap, between vmas"). We do not need a gap in this case, any address is fine as long as security_mmap_addr() doesn't object. This also simplifies the code, we know that address >= prev->vm_end and thus underflow is not possible. Link: http://lkml.kernel.org/r/20170628175258.GA24881@redhat.com Signed-off-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Hugh Dickins <hughd@google.com> Cc: Larry Woodman <lwoodman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2017-07-10 16:32:33 -07:00
..
kasan
backing-dev.c
balloon_compaction.c	mm/balloon_compaction.c: enqueue zero page to balloon device	2017-07-10 16:32:32 -07:00
bootmem.c
cleancache.c
cma_debug.c
cma.c	cma: fix calculation of aligned offset	2017-07-10 16:32:32 -07:00
cma.h
compaction.c
debug_page_ref.c
debug.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c	mm: hugetlb: return immediately for hugetlb page in __delete_from_page_cache()	2017-07-10 16:32:30 -07:00
frame_vector.c
frontswap.c
gup.c
highmem.c
huge_memory.c
hugetlb_cgroup.c
hugetlb.c	hugetlb: add support for preferred node to alloc_huge_page_nodemask	2017-07-10 16:32:32 -07:00
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig
Kconfig.debug
khugepaged.c	mm: make PR_SET_THP_DISABLE immediately active	2017-07-10 16:32:31 -07:00
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
list_lru.c
maccess.c
madvise.c	userfaultfd: non-cooperative: add madvise() event for MADV_FREE request	2017-07-10 16:32:32 -07:00
Makefile
memblock.c
memcontrol.c	mm, memcg: fix potential undefined behavior in mem_cgroup_event_ratelimit()	2017-07-10 16:32:32 -07:00
memory_hotplug.c	mm/memory_hotplug.c: remove unused local zone_type from __remove_zone()	2017-07-10 16:32:32 -07:00
memory-failure.c	mm, hugetlb, soft_offline: use new_page_nodemask for soft offline migration	2017-07-10 16:32:32 -07:00
memory.c	mm/memory.c: convert to DEFINE_DEBUGFS_ATTRIBUTE	2017-07-10 16:32:30 -07:00
mempolicy.c
mempool.c
memtest.c
migrate.c	mm/migrate.c: stabilise page count when migrating transparent hugepages	2017-07-10 16:32:31 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c	mm/mmap.c: expand_downwards: don't require the gap if !vm_prev	2017-07-10 16:32:33 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c
oom_kill.c	mm/oom_kill.c: add tracepoints for oom reaper-related events	2017-07-10 16:32:32 -07:00
page_alloc.c	mm/page_alloc.c: eliminate unsigned confusion in __rmqueue_fallback	2017-07-10 16:32:32 -07:00
page_counter.c
page_ext.c
page_idle.c
page_io.c
page_isolation.c	mm: unify new_node_page and alloc_migrate_target	2017-07-10 16:32:31 -07:00
page_owner.c	mm: avoid taking zone lock in pagetypeinfo_showmixed()	2017-07-10 16:32:32 -07:00
page_poison.c
page_vma_mapped.c
page-writeback.c
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c
rodata_test.c
shmem.c	mm: make PR_SET_THP_DISABLE immediately active	2017-07-10 16:32:31 -07:00
slab_common.c
slab.c
slab.h
slob.c
slub.c
sparse-vmemmap.c
sparse.c
swap_cgroup.c
swap_slots.c	mm/swap_slots.c: don't disable preemption while taking the per-CPU cache	2017-07-10 16:32:32 -07:00
swap_state.c
swap.c
swapfile.c
truncate.c	mm/truncate.c: fix THP handling in invalidate_mapping_pages()	2017-07-10 16:32:32 -07:00
usercopy.c
userfaultfd.c
util.c
vmacache.c
vmalloc.c	vmalloc: show lazy-purged vma info in vmallocinfo	2017-07-10 16:32:31 -07:00
vmpressure.c	mm, vmpressure: pass-through notification support	2017-07-10 16:32:31 -07:00
vmscan.c	mm, vmscan: avoid thrashing anon lru when free + file is low	2017-07-10 16:32:30 -07:00
vmstat.c	mm: avoid taking zone lock in pagetypeinfo_showmixed()	2017-07-10 16:32:32 -07:00
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c	mm/zsmalloc.c: fix -Wunneeded-internal-declaration warning	2017-07-10 16:32:30 -07:00
zswap.c