Merge remote-tracking branch 'origin/upstream-f2fs-stable-linux-4.9.y' into android-4.9

Cherry-picked from origin/upstream-f2fs-stable-linux-4.9.y:

f950fa48 treewide: Use array_size in f2fs_kvzalloc()
61f48646 treewide: Use array_size() in f2fs_kzalloc()
c4eb50da treewide: Use array_size() in f2fs_kmalloc()
96a23292 overflow.h: Add allocation size calculation helpers
9a857bde f2fs: fix to clear FI_VOLATILE_FILE correctly
deb78d4c f2fs: let sync node IO interrupt async one
7507ad25 f2fs: don't change wbc->sync_mode
accb4064 f2fs: fix to update mtime correctly
6285d972 fs: f2fs: insert space around that ':' and ', '
9ef10313 fs: f2fs: add missing blank lines after declarations
ee62ea28 fs: f2fs: changed variable type of offset "unsigned" to "loff_t"
6b4d6a81 f2fs: clean up symbol namespace
6de81c8d f2fs: make set_de_type() static
fdd569a7 f2fs: make __f2fs_write_data_pages() static
48fa5343 f2fs: fix to avoid accessing cross the boundary
34880e00 f2fs: fix to let caller retry allocating block address
8c469651 disable loading f2fs module on PAGE_SIZE > 4KB
408285a4 f2fs: fix error path of move_data_page
9780d68d f2fs: don't drop dentry pages after fs shutdown
b9921f02 f2fs: fix to avoid race during access gc_thread pointer
bcbcda43 f2fs: clean up with clear_radix_tree_dirty_tag
4636af96 f2fs: fix to don't trigger writeback during recovery
5bc68f30 f2fs: clear discard_wake earlier
8d74ddc1 f2fs: let discard thread wait a little longer if dev is busy
caf10c6f f2fs: avoid stucking GC due to atomic write
0390d83f f2fs: introduce sbi->gc_mode to determine the policy
bbab2dcb f2fs: keep migration IO order in LFS mode
2f7e488b f2fs: fix to wait page writeback during revoking atomic write
664de599 f2fs: Fix deadlock in shutdown ioctl
458e47f3 f2fs: detect synchronous writeback more earlier
4d93a43d mm: remove nr_pages argument from pagevec_lookup_{,range}_tag()
12034c75 ceph: use pagevec_lookup_range_nr_tag()
565d7441 mm: add variant of pagevec_lookup_range_tag() taking number of pages
bef1c391 mm: use pagevec_lookup_range_tag() in write_cache_pages()
7e95dd50 mm: use pagevec_lookup_range_tag() in __filemap_fdatawait_range()
88c6c1f2 nilfs2: use pagevec_lookup_range_tag()
aa70b701 gfs2: use pagevec_lookup_range_tag()
c4464307 f2fs: use find_get_pages_tag() for looking up single page
45ec63b2 f2fs: simplify page iteration loops
e0673658 f2fs: use pagevec_lookup_range_tag()
d7a592f6 ext4: use pagevec_lookup_range_tag()
b4331516 ceph: use pagevec_lookup_range_tag()
e286666c btrfs: use pagevec_lookup_range_tag()
fb296a23 mm: implement find_get_pages_range_tag()
158d9bbb f2fs: clean up with is_valid_blkaddr()
20893172 f2fs: fix to initialize min_mtime with ULLONG_MAX
a301e761 f2fs: fix to let checkpoint guarantee atomic page persistence
2d96ad5b f2fs: fix to initialize i_current_depth according to inode type
6b7c7b41 Revert "f2fs: add ovp valid_blocks check for bg gc victim to fg_gc"
04fa5dce f2fs: don't drop any page on f2fs_cp_error() case
0aca14fc f2fs: fix spelling mistake: "extenstion" -> "extension"
6abb0338 f2fs: enhance sanity_check_raw_super() to avoid potential overflows
f921fa84 f2fs: treat volatile file's data as hot one
a2cbd9b5 f2fs: introduce release_discard_addr() for cleanup
54f43787 f2fs: fix potential overflow
f6bd7d45 f2fs: rename dio_rwsem to i_gc_rwsem
48698e46 f2fs: move mnt_want_write_file after range check
707f7ae7 f2fs: fix missing clear FI_NO_PREALLOC in some error case
d487b158 f2fs: enforce fsync_mode=strict for renamed directory
1c7d5f02 f2fs: sanity check for total valid node blocks
0f0b18ad f2fs: sanity check on sit entry
60143bfd f2fs: avoid bug_on on corrupted inode
b733d017 f2fs: give message and set need_fsck given broken node id
0b4d0d03 f2fs: clean up commit_inmem_pages()
80ee152c f2fs: do not check F2FS_INLINE_DOTS in recover
78d089f5 f2fs: remove duplicated dquot_initialize and fix error handling
198f637c f2fs: stop issue discard if something wrong with f2fs
2f903ef9 f2fs: fix return value in f2fs_ioc_commit_atomic_write
5bdfc7ee f2fs: allocate hot_data for atomic write more strictly
51ad1795 f2fs: check if inmem_pages list is empty correctly
72823f4c f2fs: fix race in between GC and atomic open
97d0c4e7 f2fs: change le32 to le16 of f2fs_inode->i_extra_size
5a60d4cd f2fs: check cur_valid_map_mir & raw_sit block count when flush sit entries
aa8b4b99 f2fs: correct return value of f2fs_trim_fs
03a22433 f2fs: fix to show missing bits in FS_IOC_GETFLAGS
a0bbb362 f2fs: remove unneeded F2FS_PROJINHERIT_FL
7aee058b f2fs: don't use GFP_ZERO for page caches
addb448b f2fs: issue all big range discards in umount process
dc93e586 f2fs: remove redundant block plug
d1aee08a f2fs: remove unmatched zero_user_segment when convert inline dentry
9bafde62 f2fs: introduce private inode status mapping
a4842a18 fscrypt: log the crypto algorithm implementations
c16d27eb fscrypt: add Speck128/256 support
08ac7224 fscrypt: only derive the needed portion of the key
24cc7a8c fscrypt: separate key lookup from key derivation
78275d80 fscrypt: use a common logging function
56733c62 fscrypt: remove internal key size constants
9add02d5 fscrypt: remove unnecessary check for non-logon key type
4ddc3a80 fscrypt: make fscrypt_operations.max_namelen an integer
6cf4ea2a fscrypt: drop empty name check from fname_decrypt()
e2a57840 fscrypt: drop max_namelen check from fname_decrypt()
d3679390 fscrypt: don't special-case EOPNOTSUPP from fscrypt_get_encryption_info()
1cfd1582 fscrypt: don't clear flags on crypto transform
cfd1d7ba fscrypt: remove stale comment from fscrypt_d_revalidate()
1e04ac8a fscrypt: remove error messages for skcipher_request_alloc() failure
c6b42b9b fscrypt: remove unnecessary NULL check when allocating skcipher
3866025c fscrypt: clean up after fscrypt_prepare_lookup() conversions
b711ad8a ext4: switch to fscrypt_prepare_lookup()
f9866deb fscrypt: use unbound workqueue for decryption

Change-Id: Ia9a47ef30e9e47c4c3e1e9e91e37ae1dc018384f
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>