Hugh Dickins 7f55656703 tmpfs: fix regression hang in fallocate undo ... The well-spotted fallocate undo fix is good in most cases, but not when fallocate failed on the very first page. index 0 then passes lend -1 to shmem_undo_range(), and that has two bad effects: (a) that it will undo every fallocation throughout the file, unrestricted by the current range; but more importantly (b) it can cause the undo to hang, because lend -1 is treated as truncation, which makes it keep on retrying until every page has gone, but those already fully instantiated will never go away. Big thank you to xfstests generic/269 which demonstrates this. Fixes: b9b4bb26af ("tmpfs: don't undo fallocate past its last page") Cc: stable@vger.kernel.org Signed-off-by: Hugh Dickins <hughd@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-07-10 20:08:44 -07:00
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kasan
backing-dev.c
balloon_compaction.c
bootmem.c
cleancache.c
cma.c
cma.h
cma_debug.c
compaction.c	mm, compaction: abort free scanner if split fails	2016-06-24 17:23:52 -07:00
debug.c
debug_page_ref.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c
frame_vector.c
frontswap.c
gup.c
highmem.c
huge_memory.c
hugetlb.c	mm/hugetlb: clear compound_mapcount when freeing gigantic pages	2016-06-24 17:23:52 -07:00
hugetlb_cgroup.c
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: prevent KASAN false positives in kmemleak	2016-06-24 17:23:52 -07:00
ksm.c
list_lru.c
maccess.c
madvise.c
Makefile
memblock.c
memcontrol.c	memcg: css_alloc should return an ERR_PTR value on error	2016-06-24 17:23:52 -07:00
memory-failure.c
memory.c	Revert "mm: disable fault around on emulated access bit architecture"	2016-06-24 17:23:52 -07:00
memory_hotplug.c
mempolicy.c
mempool.c
memtest.c
migrate.c
mincore.c
mlock.c
mm_init.c
mmap.c
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nobootmem.c
nommu.c
oom_kill.c
page-writeback.c
page_alloc.c
page_counter.c
page_ext.c
page_idle.c
page_io.c
page_isolation.c
page_owner.c	mm/page_owner: avoid null pointer dereference	2016-06-24 17:23:52 -07:00
page_poison.c
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c
shmem.c	tmpfs: fix regression hang in fallocate undo	2016-07-10 20:08:44 -07:00
slab.c
slab.h
slab_common.c
slob.c
slub.c
sparse-vmemmap.c
sparse.c
swap.c	mm/swap.c: flush lru pvecs on compound page arrival	2016-06-24 17:23:52 -07:00
swap_cgroup.c
swap_state.c
swapfile.c
truncate.c
userfaultfd.c
util.c
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c
vmstat.c
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c
zswap.c