diff options
Diffstat (limited to 'fs/ext4/super.c')
| -rw-r--r-- | fs/ext4/super.c | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index dbebd8b3127e..d43f8324242a 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1351,14 +1351,14 @@ static void ext4_put_super(struct super_block *sb) sync_blockdev(sb->s_bdev); invalidate_bdev(sb->s_bdev); - if (sbi->s_journal_bdev) { + if (sbi->s_journal_bdev_handle) { /* * 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->s_journal_bdev); - invalidate_bdev(sbi->s_journal_bdev); + sync_blockdev(sbi->s_journal_bdev_handle->bdev); + invalidate_bdev(sbi->s_journal_bdev_handle->bdev); } ext4_xattr_destroy_cache(sbi->s_ea_inode_cache); @@ -4233,7 +4233,7 @@ 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->s_journal_bdev) + if (sbi->s_journal && !sbi->s_journal_bdev_handle) overhead += EXT4_NUM_B2C(sbi, sbi->s_journal->j_total_len); else if (ext4_has_feature_journal(sb) && !sbi->s_journal && j_inum) { /* j_inum for internal journal is non-zero */ @@ -5670,9 +5670,9 @@ failed_mount: #endif fscrypt_free_dummy_policy(&sbi->s_dummy_enc_policy); brelse(sbi->s_sbh); - if (sbi->s_journal_bdev) { - invalidate_bdev(sbi->s_journal_bdev); - blkdev_put(sbi->s_journal_bdev, sb); + if (sbi->s_journal_bdev_handle) { + invalidate_bdev(sbi->s_journal_bdev_handle->bdev); + bdev_release(sbi->s_journal_bdev_handle); } out_fail: invalidate_bdev(sb->s_bdev); @@ -5842,12 +5842,13 @@ static journal_t *ext4_open_inode_journal(struct super_block *sb, return journal; } -static struct block_device *ext4_get_journal_blkdev(struct super_block *sb, +static struct bdev_handle *ext4_get_journal_blkdev(struct super_block *sb, dev_t j_dev, ext4_fsblk_t *j_start, ext4_fsblk_t *j_len) { struct buffer_head *bh; struct block_device *bdev; + struct bdev_handle *bdev_handle; int hblock, blocksize; ext4_fsblk_t sb_block; unsigned long offset; @@ -5856,16 +5857,17 @@ static struct block_device *ext4_get_journal_blkdev(struct super_block *sb, /* see get_tree_bdev why this is needed and safe */ up_write(&sb->s_umount); - bdev = blkdev_get_by_dev(j_dev, BLK_OPEN_READ | BLK_OPEN_WRITE, sb, - &fs_holder_ops); + bdev_handle = bdev_open_by_dev(j_dev, BLK_OPEN_READ | BLK_OPEN_WRITE, + sb, &fs_holder_ops); down_write(&sb->s_umount); - if (IS_ERR(bdev)) { + if (IS_ERR(bdev_handle)) { ext4_msg(sb, KERN_ERR, "failed to open journal device unknown-block(%u,%u) %ld", - MAJOR(j_dev), MINOR(j_dev), PTR_ERR(bdev)); - return ERR_CAST(bdev); + MAJOR(j_dev), MINOR(j_dev), PTR_ERR(bdev_handle)); + return bdev_handle; } + bdev = bdev_handle->bdev; blocksize = sb->s_blocksize; hblock = bdev_logical_block_size(bdev); if (blocksize < hblock) { @@ -5912,12 +5914,12 @@ static struct block_device *ext4_get_journal_blkdev(struct super_block *sb, *j_start = sb_block + 1; *j_len = ext4_blocks_count(es); brelse(bh); - return bdev; + return bdev_handle; out_bh: brelse(bh); out_bdev: - blkdev_put(bdev, sb); + bdev_release(bdev_handle); return ERR_PTR(errno); } @@ -5927,14 +5929,14 @@ static journal_t *ext4_open_dev_journal(struct super_block *sb, journal_t *journal; ext4_fsblk_t j_start; ext4_fsblk_t j_len; - struct block_device *journal_bdev; + struct bdev_handle *bdev_handle; int errno = 0; - journal_bdev = ext4_get_journal_blkdev(sb, j_dev, &j_start, &j_len); - if (IS_ERR(journal_bdev)) - return ERR_CAST(journal_bdev); + bdev_handle = ext4_get_journal_blkdev(sb, j_dev, &j_start, &j_len); + if (IS_ERR(bdev_handle)) + return ERR_CAST(bdev_handle); - journal = jbd2_journal_init_dev(journal_bdev, sb->s_bdev, j_start, + journal = jbd2_journal_init_dev(bdev_handle->bdev, sb->s_bdev, j_start, j_len, sb->s_blocksize); if (IS_ERR(journal)) { ext4_msg(sb, KERN_ERR, "failed to create device journal"); @@ -5949,14 +5951,14 @@ static journal_t *ext4_open_dev_journal(struct super_block *sb, goto out_journal; } journal->j_private = sb; - EXT4_SB(sb)->s_journal_bdev = journal_bdev; + EXT4_SB(sb)->s_journal_bdev_handle = bdev_handle; ext4_init_journal_params(sb, journal); return journal; out_journal: jbd2_journal_destroy(journal); out_bdev: - blkdev_put(journal_bdev, sb); + bdev_release(bdev_handle); return ERR_PTR(errno); } @@ -7300,12 +7302,12 @@ static inline int ext3_feature_set_ok(struct super_block *sb) static void ext4_kill_sb(struct super_block *sb) { struct ext4_sb_info *sbi = EXT4_SB(sb); - struct block_device *journal_bdev = sbi ? sbi->s_journal_bdev : NULL; + struct bdev_handle *handle = sbi ? sbi->s_journal_bdev_handle : NULL; kill_block_super(sb); - if (journal_bdev) - blkdev_put(journal_bdev, sb); + if (handle) + bdev_release(handle); } static struct file_system_type ext4_fs_type = { |