4.4-stable patches

4.4-stable patches

added patches:
	f2fs-add-sanity_check_inode-function.patch
	f2fs-avoid-unneeded-loop-in-build_sit_entries.patch
	f2fs-check-blkaddr-more-accuratly-before-issue-a-bio.patch
	f2fs-clean-up-argument-of-recover_data.patch
	f2fs-clean-up-with-is_valid_blkaddr.patch
	f2fs-cover-more-area-with-nat_tree_lock.patch
	f2fs-detect-wrong-layout.patch
	f2fs-enhance-sanity_check_raw_super-to-avoid-potential-overflow.patch
	f2fs-factor-out-fsync-inode-entry-operations.patch
	f2fs-fix-inode-cache-leak.patch
	f2fs-fix-invalid-memory-access.patch
	f2fs-fix-missing-up_read.patch
	f2fs-fix-race-condition-in-between-free-nid-allocator-initializer.patch
	f2fs-fix-to-avoid-reading-out-encrypted-data-in-page-cache.patch
	f2fs-fix-to-convert-inline-directory-correctly.patch
	f2fs-fix-to-determine-start_cp_addr-by-sbi-cur_cp_pack.patch
	f2fs-fix-to-do-sanity-check-with-block-address-in-main-area-v2.patch
	f2fs-fix-to-do-sanity-check-with-block-address-in-main-area.patch
	f2fs-fix-to-do-sanity-check-with-cp_pack_start_sum.patch
	f2fs-fix-to-do-sanity-check-with-node-footer-and-iblocks.patch
	f2fs-fix-to-do-sanity-check-with-reserved-blkaddr-of-inline-inode.patch
	f2fs-fix-to-do-sanity-check-with-secs_per_zone.patch
	f2fs-fix-to-do-sanity-check-with-user_block_count.patch
	f2fs-fix-validation-of-the-block-count-in-sanity_check_raw_super.patch
	f2fs-free-meta-pages-if-sanity-check-for-ckpt-is-failed.patch
	f2fs-give-einval-for-norecovery-and-rw-mount.patch
	f2fs-introduce-and-spread-verify_blkaddr.patch
	f2fs-introduce-get_checkpoint_version-for-cleanup.patch
	f2fs-move-sanity-checking-of-cp-into-get_valid_checkpoint.patch
	f2fs-not-allow-to-write-illegal-blkaddr.patch
	f2fs-put-directory-inodes-before-checkpoint-in-roll-forward-recovery.patch
	f2fs-remove-an-obsolete-variable.patch
	f2fs-return-error-during-fill_super.patch
	f2fs-sanity-check-on-sit-entry.patch
	f2fs-use-crc-and-cp-version-to-determine-roll-forward-recovery.patch