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ext4: rename journal_dev to s_journal_dev inside ext4_sb_info 

Rename journal_dev to s_journal_dev inside ext4_sb_info, keep
the naming rules consistent with other variables, which is
convenient for code reading and writing.

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/1600916623-544-1-git-send-email-brookxu@tencent.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Chunguang Xu 2020-09-24 11:03:42 +08:00 committed by Theodore Ts'o
parent 15a119e093
commit ee7ed3aa0f
3 changed files with 12 additions and 12 deletions
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2
fs/ext4/ext4.h
View File

@ -1480,7 +1480,7 @@ struct ext4_sb_info {
unsigned long s_commit_interval;
u32 s_max_batch_time;
u32 s_min_batch_time;
struct block_device *journal_bdev;
struct block_device *s_journal_bdev;
#ifdef CONFIG_QUOTA
/* Names of quota files with journalled quota */
char __rcu *s_qf_names[EXT4_MAXQUOTAS];

8
fs/ext4/fsmap.c
View File

@ -571,8 +571,8 @@ static bool ext4_getfsmap_is_valid_device(struct super_block *sb,
if (fm->fmr_device == 0 || fm->fmr_device == UINT_MAX ||
fm->fmr_device == new_encode_dev(sb->s_bdev->bd_dev))
return true;
if (EXT4_SB(sb)->journal_bdev &&
fm->fmr_device == new_encode_dev(EXT4_SB(sb)->journal_bdev->bd_dev))
if (EXT4_SB(sb)->s_journal_bdev &&
fm->fmr_device == new_encode_dev(EXT4_SB(sb)->s_journal_bdev->bd_dev))
return true;
return false;
}
@ -642,9 +642,9 @@ int ext4_getfsmap(struct super_block *sb, struct ext4_fsmap_head *head,
memset(handlers, 0, sizeof(handlers));
handlers[0].gfd_dev = new_encode_dev(sb->s_bdev->bd_dev);
handlers[0].gfd_fn = ext4_getfsmap_datadev;
if (EXT4_SB(sb)->journal_bdev) {
if (EXT4_SB(sb)->s_journal_bdev) {
handlers[1].gfd_dev = new_encode_dev(
EXT4_SB(sb)->journal_bdev->bd_dev);
EXT4_SB(sb)->s_journal_bdev->bd_dev);
handlers[1].gfd_fn = ext4_getfsmap_logdev;
}

14
fs/ext4/super.c
View File

@ -950,10 +950,10 @@ static void ext4_blkdev_put(struct block_device *bdev)
static void ext4_blkdev_remove(struct ext4_sb_info *sbi)
{
struct block_device *bdev;
bdev = sbi->journal_bdev;
bdev = sbi->s_journal_bdev;
if (bdev) {
ext4_blkdev_put(bdev);
sbi->journal_bdev = NULL;
sbi->s_journal_bdev = NULL;
}
}
@ -1084,14 +1084,14 @@ static void ext4_put_super(struct super_block *sb)
sync_blockdev(sb->s_bdev);
invalidate_bdev(sb->s_bdev);
if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) {
if (sbi->s_journal_bdev && sbi->s_journal_bdev != sb->s_bdev) {
/*
* Invalidate the journal device's buffers. We don't want them
* floating about in memory - the physical journal device may
* hotswapped, and it breaks the `ro-after' testing code.
*/
sync_blockdev(sbi->journal_bdev);
invalidate_bdev(sbi->journal_bdev);
sync_blockdev(sbi->s_journal_bdev);
invalidate_bdev(sbi->s_journal_bdev);
ext4_blkdev_remove(sbi);
}
@ -3765,7 +3765,7 @@ int ext4_calculate_overhead(struct super_block *sb)
* Add the internal journal blocks whether the journal has been
* loaded or not
*/
if (sbi->s_journal && !sbi->journal_bdev)
if (sbi->s_journal && !sbi->s_journal_bdev)
overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_maxlen);
else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) {
/* j_inum for internal journal is non-zero */
@ -5126,7 +5126,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb,
be32_to_cpu(journal->j_superblock->s_nr_users));
goto out_journal;
}
EXT4_SB(sb)->journal_bdev = bdev;
EXT4_SB(sb)->s_journal_bdev = bdev;
ext4_init_journal_params(sb, journal);
return journal;