Merge remote-tracking branch 'remotes/origin/tmp-5030b0ac' into msm-5.4

* remotes/origin/tmp-5030b0ac: (48 commits)
  exfat: Avoid allocating upcase table using kcalloc()
  exfat: remove useless check in exfat_move_file()
  exfat: remove 'rwoffset' in exfat_inode_info
  exfat: replace memcpy with structure assignment
  exfat: remove useless directory scan in exfat_add_entry()
  exfat: eliminate dead code in exfat_find()
  exfat: use i_blocksize() to get blocksize
  exfat: fix misspellings using codespell tool
  exfat: fix use of uninitialized spinlock on error path
  exfat: fix pointer error checking
  exfat: retain 'VolumeFlags' properly
  exfat: optimize exfat_zeroed_cluster()
  exfat: add error check when updating dir-entries
  exfat: write multiple sectors at once
  exfat: remove EXFAT_SB_DIRTY flag
  exfat: fix name_hash computation on big endian systems
  exfat: fix wrong size update of stream entry by typo
  exfat: fix wrong hint_stat initialization in exfat_find_dir_entry()
  exfat: fix overflow issue in exfat_cluster_to_sector()
  exfat: flush dirty metadata in fsync
  exfat: move setting VOL_DIRTY over exfat_remove_entries()
  exfat: call sync_filesystem for read-only remount
  exfat: add missing brelse() calls on error paths
  exfat: Set the unused characters of FileName field to the value 0000h
  exfat: Fix potential use after free in exfat_load_upcase_table()
  exfat: fix range validation error in alloc and free cluster
  exfat: fix incorrect update of stream entry in __exfat_truncate()
  exfat: fix memory leak in exfat_parse_param()
  exfat: remove unnecessary reassignment of p_uniname->name_len
  exfat: standardize checksum calculation
  exfat: add boot region verification
  exfat: separate the boot sector analysis
  exfat: redefine PBR as boot_sector
  exfat: optimize dir-cache
  exfat: replace 'time_ms' with 'time_cs'
  exfat: remove the assignment of 0 to bool variable
  exfat: Remove unused functions exfat_high_surrogate() and exfat_low_surrogate()
  exfat: Simplify exfat_utf8_d_hash() for code points above U+FFFF
  exfat: Use a more common logging style
  exfat: Simplify exfat_utf8_d_cmp() for code points above U+FFFF
  exfat: fix possible memory leak in exfat_find()
  exfat: use iter_file_splice_write
  exfat: truncate atimes to 2s granularity
  exfat: properly set s_time_gran
  exfat: remove 'bps' mount-option
  exfat: Unify access to the boot sector
  exfat: add missing MODULE_ALIAS_FS()
  exfat: Fix discard support

Change-Id: Ib7942188437aec61c0f26d56976fcf0a025d2ec3
Signed-off-by: lixiang <lixiang@codeaurora.org>