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Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c52
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 = {