From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 15 Jan 2021 22:54:24 +0000 (-0800)
Subject: Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git... 
X-Git-Tag: v5.15~1977
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0bc9bc1d8b2fa0d5a7e2132e89c540099ea63172;p=platform%2Fkernel%2Flinux-starfive.git

Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "A number of bug fixes for ext4:

   - Fix for the new fast_commit feature

   - Fix some error handling codepaths in whiteout handling and
     mountpoint sampling

   - Fix how we write ext4_error information so it goes through the
     journal when journalling is active, to avoid races that can lead to
     lost error information, superblock checksum failures, or DIF/DIX
     features"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: remove expensive flush on fast commit
  ext4: fix bug for rename with RENAME_WHITEOUT
  ext4: fix wrong list_splice in ext4_fc_cleanup
  ext4: use IS_ERR instead of IS_ERR_OR_NULL and set inode null when IS_ERR
  ext4: don't leak old mountpoint samples
  ext4: drop ext4_handle_dirty_super()
  ext4: fix superblock checksum failure when setting password salt
  ext4: use sbi instead of EXT4_SB(sb) in ext4_update_super()
  ext4: save error info to sb through journal if available
  ext4: protect superblock modifications with a buffer lock
  ext4: drop sync argument of ext4_commit_super()
  ext4: combine ext4_handle_error() and save_error_info()
---

0bc9bc1d8b2fa0d5a7e2132e89c540099ea63172
diff --cc fs/ext4/super.c
index 2112178,0f0db49..9a6f987
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@@ -5450,18 -5494,22 +5488,18 @@@ static void ext4_update_super(struct su
  	 */
  	if (!(sb->s_flags & SB_RDONLY))
  		ext4_update_tstamp(es, s_wtime);
 -	if (sb->s_bdev->bd_part)
 -		es->s_kbytes_written =
 -			cpu_to_le64(sbi->s_kbytes_written +
 -			    ((part_stat_read(sb->s_bdev->bd_part,
 -					     sectors[STAT_WRITE]) -
 -			      sbi->s_sectors_written_start) >> 1));
 -	else
 -		es->s_kbytes_written = cpu_to_le64(sbi->s_kbytes_written);
 +	es->s_kbytes_written =
- 		cpu_to_le64(EXT4_SB(sb)->s_kbytes_written +
++		cpu_to_le64(sbi->s_kbytes_written +
 +		    ((part_stat_read(sb->s_bdev, sectors[STAT_WRITE]) -
- 		      EXT4_SB(sb)->s_sectors_written_start) >> 1));
- 	if (percpu_counter_initialized(&EXT4_SB(sb)->s_freeclusters_counter))
++		      sbi->s_sectors_written_start) >> 1));
+ 	if (percpu_counter_initialized(&sbi->s_freeclusters_counter))
  		ext4_free_blocks_count_set(es,
- 			EXT4_C2B(EXT4_SB(sb), percpu_counter_sum_positive(
- 				&EXT4_SB(sb)->s_freeclusters_counter)));
- 	if (percpu_counter_initialized(&EXT4_SB(sb)->s_freeinodes_counter))
+ 			EXT4_C2B(sbi, percpu_counter_sum_positive(
+ 				&sbi->s_freeclusters_counter)));
+ 	if (percpu_counter_initialized(&sbi->s_freeinodes_counter))
  		es->s_free_inodes_count =
  			cpu_to_le32(percpu_counter_sum_positive(
- 				&EXT4_SB(sb)->s_freeinodes_counter));
+ 				&sbi->s_freeinodes_counter));
  	/* Copy error information to the on-disk superblock */
  	spin_lock(&sbi->s_error_lock);
  	if (sbi->s_add_error_count > 0) {