[PATCH 27/29] reiserfs: Convert to bdev_open_by_dev/path()

Jan Kara
2023-09-27T09:35:14Z

Convert reiserfs to use bdev_open_by_dev/path() and pass the handle
around.

CC: reiserfs-devel@vger.kernel.org
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
---
fs/reiserfs/journal.c | 56 +++++++++++++++++++-----------------------
fs/reiserfs/procfs.c | 2 +-
fs/reiserfs/reiserfs.h | 11 ++++++---
3 files changed, 33 insertions(+), 36 deletions(-)

diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 015bfe4e4524..171c912af50f 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -90,8 +90,7 @@ static int flush_commit_list(struct super_block *s,
static int can_dirty(struct reiserfs_journal_cnode *cn);
static int journal_join(struct reiserfs_transaction_handle *th,
struct super_block *sb);
-static void release_journal_dev(struct super_block *super,
- struct reiserfs_journal *journal);
+static void release_journal_dev(struct reiserfs_journal *journal);
static void dirty_one_transaction(struct super_block *s,
struct reiserfs_journal_list *jl);
static void flush_async_commits(struct work_struct *work);
@@ -1893,7 +1892,7 @@ static void free_journal_ram(struct super_block *sb)
* j_header_bh is on the journal dev, make sure
* not to release the journal dev until we brelse j_header_bh
*/
- release_journal_dev(sb, journal);
+ release_journal_dev(journal);
vfree(journal);
}

@@ -2387,7 +2386,7 @@ static int journal_read(struct super_block *sb)

cur_dblock = SB_ONDISK_JOURNAL_1st_BLOCK(sb);
reiserfs_info(sb, "checking transaction log (%pg)\n",
- journal->j_dev_bd);
+ journal->j_bdev_handle->bdev);
start = ktime_get_seconds();

/*
@@ -2448,7 +2447,7 @@ static int journal_read(struct super_block *sb)
* device and journal device to be the same
*/
d_bh =
- reiserfs_breada(journal->j_dev_bd, cur_dblock,
+ reiserfs_breada(journal->j_bdev_handle->bdev, cur_dblock,
sb->s_blocksize,
SB_ONDISK_JOURNAL_1st_BLOCK(sb) +
SB_ONDISK_JOURNAL_SIZE(sb));
@@ -2587,17 +2586,11 @@ static void journal_list_init(struct super_block *sb)
SB_JOURNAL(sb)->j_current_jl = alloc_journal_list(sb);
}

-static void release_journal_dev(struct super_block *super,
- struct reiserfs_journal *journal)
+static void release_journal_dev(struct reiserfs_journal *journal)
{
- if (journal->j_dev_bd != NULL) {
- void *holder = NULL;
-
- if (journal->j_dev_bd->bd_dev != super->s_dev)
- holder = journal;
-
- blkdev_put(journal->j_dev_bd, holder);
- journal->j_dev_bd = NULL;
+ if (journal->j_bdev_handle) {
+ bdev_release(journal->j_bdev_handle);
+ journal->j_bdev_handle = NULL;
}
}

@@ -2612,7 +2605,7 @@ static int journal_init_dev(struct super_block *super,

result = 0;

- journal->j_dev_bd = NULL;
+ journal->j_bdev_handle = NULL;
jdev = SB_ONDISK_JOURNAL_DEVICE(super) ?
new_decode_dev(SB_ONDISK_JOURNAL_DEVICE(super)) : super->s_dev;

@@ -2623,36 +2616,37 @@ static int journal_init_dev(struct super_block *super,
if ((!jdev_name || !jdev_name[0])) {
if (jdev == super->s_dev)
holder = NULL;
- journal->j_dev_bd = blkdev_get_by_dev(jdev, blkdev_mode, holder,
- NULL);
- if (IS_ERR(journal->j_dev_bd)) {
- result = PTR_ERR(journal->j_dev_bd);
- journal->j_dev_bd = NULL;
+ journal->j_bdev_handle = bdev_open_by_dev(jdev, blkdev_mode,
+ holder, NULL);
+ if (IS_ERR(journal->j_bdev_handle)) {
+ result = PTR_ERR(journal->j_bdev_handle);
+ journal->j_bdev_handle = NULL;
reiserfs_warning(super, "sh-458",
"cannot init journal device unknown-block(%u,%u): %i",
MAJOR(jdev), MINOR(jdev), result);
return result;
} else if (jdev != super->s_dev)
- set_blocksize(journal->j_dev_bd, super->s_blocksize);
+ set_blocksize(journal->j_bdev_handle->bdev,
+ super->s_blocksize);

return 0;
}

- journal->j_dev_bd = blkdev_get_by_path(jdev_name, blkdev_mode, holder,
- NULL);
- if (IS_ERR(journal->j_dev_bd)) {
- result = PTR_ERR(journal->j_dev_bd);
- journal->j_dev_bd = NULL;
+ journal->j_bdev_handle = bdev_open_by_path(jdev_name, blkdev_mode,
+ holder, NULL);
+ if (IS_ERR(journal->j_bdev_handle)) {
+ result = PTR_ERR(journal->j_bdev_handle);
+ journal->j_bdev_handle = NULL;
reiserfs_warning(super, "sh-457",
"journal_init_dev: Cannot open '%s': %i",
jdev_name, result);
return result;
}

- set_blocksize(journal->j_dev_bd, super->s_blocksize);
+ set_blocksize(journal->j_bdev_handle->bdev, super->s_blocksize);
reiserfs_info(super,
"journal_init_dev: journal device: %pg\n",
- journal->j_dev_bd);
+ journal->j_bdev_handle->bdev);
return 0;
}

@@ -2810,7 +2804,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
"journal header magic %x (device %pg) does "
"not match to magic found in super block %x",
jh->jh_journal.jp_journal_magic,
- journal->j_dev_bd,
+ journal->j_bdev_handle->bdev,
sb_jp_journal_magic(rs));
brelse(bhjh);
goto free_and_return;
@@ -2834,7 +2828,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
reiserfs_info(sb, "journal params: device %pg, size %u, "
"journal first block %u, max trans len %u, max batch %u, "
"max commit age %u, max trans age %u\n",
- journal->j_dev_bd,
+ journal->j_bdev_handle->bdev,
SB_ONDISK_JOURNAL_SIZE(sb),
SB_ONDISK_JOURNAL_1st_BLOCK(sb),
journal->j_trans_max,
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index 3dba8acf4e83..83cb9402e0f9 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -354,7 +354,7 @@ static int show_journal(struct seq_file *m, void *unused)
"prepare: \t%12lu\n"
"prepare_retry: \t%12lu\n",
DJP(jp_journal_1st_block),
- SB_JOURNAL(sb)->j_dev_bd,
+ SB_JOURNAL(sb)->j_bdev_handle->bdev,
DJP(jp_journal_dev),
DJP(jp_journal_size),
DJP(jp_journal_trans_max),
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index 7d12b8c5b2fa..8ad41271c256 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -299,7 +299,7 @@ struct reiserfs_journal {
/* oldest journal block. start here for traverse */
struct reiserfs_journal_cnode *j_first;

- struct block_device *j_dev_bd;
+ struct bdev_handle *j_bdev_handle;

/* first block on s_dev of reserved area journal */
int j_1st_reserved_block;
@@ -2809,9 +2809,12 @@ struct reiserfs_journal_header {
#define journal_hash(t,sb,block) ((t)[_jhashfn((sb),(block)) & JBH_HASH_MASK])

/* We need these to make journal.c code more readable */
-#define journal_find_get_block(s, block) __find_get_block(SB_JOURNAL(s)->j_dev_bd, block, s->s_blocksize)
-#define journal_getblk(s, block) __getblk(SB_JOURNAL(s)->j_dev_bd, block, s->s_blocksize)
-#define journal_bread(s, block) __bread(SB_JOURNAL(s)->j_dev_bd, block, s->s_blocksize)
+#define journal_find_get_block(s, block) __find_get_block(\
+ SB_JOURNAL(s)->j_bdev_handle->bdev, block, s->s_blocksize)
+#define journal_getblk(s, block) __getblk(SB_JOURNAL(s)->j_bdev_handle->bdev,\
+ block, s->s_blocksize)
+#define journal_bread(s, block) __bread(SB_JOURNAL(s)->j_bdev_handle->bdev,\
+ block, s->s_blocksize)

enum reiserfs_bh_state_bits {
BH_JDirty = BH_PrivateStart, /* buffer is in current transaction */
--
2.35.3