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android_kernel_samsung_msm8…/mm
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Hugh Dickins 9227997e3b tmpfs: support fallocate FALLOC_FL_PUNCH_HOLE 
tmpfs has supported hole-punching since 2.6.16, via
madvise(,,MADV_REMOVE).

But nowadays fallocate(,FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE,,) is
the agreed way to punch holes.

So add shmem_fallocate() to support that, and tweak shmem_truncate_range()
to support partial pages at both the beginning and end of range (never
needed for madvise, which demands rounded addr and rounds up length).

Change-Id: If3817fc74a6fb6da898be7e0bedce729113b6530
Based-on-patch-by: Cong Wang <amwang@redhat.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Cong Wang <amwang@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-09-23 17:29:08 +02:00
..
backing-dev.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
bootmem.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
bounce.c
mm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:27 +08:00
cleancache.c
mm: cleancache: Use __read_mostly as appropiate.
2012-01-23 16:08:09 -05:00
compaction.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
debug-pagealloc.c
mm: Mark free pages as read only
2014-04-22 10:32:19 -07:00
dmapool.c
mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls
2013-04-10 18:03:01 -07:00
fadvise.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
failslab.c
switch debugfs to umode_t
2012-01-03 22:54:56 -05:00
filemap_xip.c
fs: introduce inode operation ->update_time
2019-08-06 10:44:13 +02:00
filemap.c
fs: introduce inode operation ->update_time
2019-08-06 10:44:13 +02:00
fremap.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
frontswap.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
highmem.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
huge_memory.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
hugetlb.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
hwpoison-inject.c
HWPOISON: Clean up memory_failure() vs. __memory_failure()
2012-01-03 12:06:32 -08:00
init-mm.c
…
internal.h
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
Kconfig
mm: Backport ZRAM/ZSMALLOC from Google kernel
2019-08-06 08:17:38 +02:00
Kconfig.debug
mm: more intensive memory corruption debugging
2012-01-10 16:30:42 -08:00
kmemcheck.c
…
kmemleak-test.c
…
kmemleak.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
ksm.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
maccess.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
madvise.c
mm: add a field to store names for private anonymous memory
2014-11-05 11:32:48 +05:30
Makefile
misc: fix some GCC warnings
2019-08-23 13:20:00 +02:00
memblock.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
memcontrol.c
shmem: replace page if mapping excludes its zone
2020-09-23 17:29:05 +02:00
memory_hotplug.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
memory-failure.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
memory.c
mm: introduce vma_is_anonymous(vma) helper
2019-08-09 12:05:11 +02:00
mempolicy.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
mempool.c
mempool: fix first round failure behavior
2012-01-10 16:30:45 -08:00
migrate.c
mm: migrate dirty page without clear_page_dirty_for_io etc
2019-08-06 12:19:38 +02:00
mincore.c
mm/mincore.c: make mincore() more conservative
2019-08-09 12:05:18 +02:00
mlock.c
Merge remote-tracking branch 'google-common/deprecated/android-3.4' into lineage-16.0
2019-08-06 11:41:21 +02:00
mm_init.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
mmap.c
coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
2020-05-20 09:44:04 +02:00
mmu_context.c
mm, counters: remove task argument to sync_mm_rss() and __sync_task_rss_stat()
2012-03-21 17:54:59 -07:00
mmu_notifier.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
mmzone.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
mprotect.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
mremap.c
mm: collapse security_vm_enough_memory() variants into a single function
2012-02-14 10:45:39 +11:00
msync.c
…
nobootmem.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
nommu.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
oom_kill.c
mm, oom: make dump_tasks public
2019-08-08 12:09:23 +02:00
page_alloc.c
Merge remote-tracking branch 'google-common/deprecated/android-3.4' into lineage-16.0
2019-08-06 11:41:21 +02:00
page_cgroup.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
page_io.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
page_isolation.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
page-writeback.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
pagewalk.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
percpu-km.c
…
percpu-vm.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
percpu.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
pgtable-generic.c
thp: add HPAGE_PMD_* definitions for !CONFIG_TRANSPARENT_HUGEPAGE
2012-03-21 17:55:02 -07:00
prio_tree.c
…
process_vm_access.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
quicklist.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
readahead.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00
rmap.c
misc: fix some GCC warnings
2019-08-23 13:20:00 +02:00
shmem.c
tmpfs: support fallocate FALLOC_FL_PUNCH_HOLE
2020-09-23 17:29:08 +02:00
showmem.c
mm: Add notifier framework for showing memory
2019-08-08 12:09:25 +02:00
slab.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
slob.c
mm: Map most files to use export.h instead of module.h
2011-10-31 09:20:12 -04:00
slub.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
sparse-vmemmap.c
mm: delete various needless include <linux/module.h>
2011-10-31 09:20:11 -04:00
sparse.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
swap_state.c
lowmemorykiller: Don't count swap cache pages twice
2019-08-08 12:09:23 +02:00
swap.c
swap: make each swap partition have one address_space
2019-08-06 08:17:37 +02:00
swapfile.c
swap: make each swap partition have one address_space
2019-08-06 08:17:37 +02:00
truncate.c
Revert "shmem: fix faulting into a hole while it's punched"
2020-09-23 17:26:49 +02:00
util.c
swap: make each swap partition have one address_space
2019-08-06 08:17:37 +02:00
vmalloc.c
Merge tag 'v3.4.113' into lineage-16.0
2019-08-05 14:20:47 +02:00
vmpressure.c
mm: vmpressure: fix backport
2019-08-08 12:26:41 +02:00
vmscan.c
mm: only force scan in reclaim when none of the LRUs are big enough.
2019-08-09 12:07:21 +02:00
vmstat.c
lowmemorykiller: Don't count swap cache pages twice
2019-08-08 12:09:23 +02:00
zbud.c
mm: Backport ZCache from QC kernel 3.18
2019-08-06 08:16:29 +02:00
zcache.c
zcache: Remove WARN_ON
2019-08-06 08:17:38 +02:00
zsmalloc.c
mm: Backport ZRAM/ZSMALLOC from Google kernel
2019-08-06 08:17:38 +02:00
zswap.c
misc: Import SM-G900H kernel source code
2019-08-02 15:14:10 +02:00