[PATCH 24/29] jfs: Convert to bdev_open_by_dev()

Jan Kara
2023-08-23T10:50:57Z

Convert jfs to use bdev_open_by_dev() and pass the handle around.

CC: Dave Kleikamp <shaggy@kernel.org>
CC: jfs-discussion@lists.sourceforge.net
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
fs/jfs/jfs_logmgr.c | 29 +++++++++++++++--------------
fs/jfs/jfs_logmgr.h | 2 +-
fs/jfs/jfs_mount.c | 3 ++-
3 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index e855b8fde76c..c911d838b8ec 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1058,7 +1058,7 @@ void jfs_syncpt(struct jfs_log *log, int hard_sync)
int lmLogOpen(struct super_block *sb)
{
int rc;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
struct jfs_log *log;
struct jfs_sb_info *sbi = JFS_SBI(sb);

@@ -1070,7 +1070,7 @@ int lmLogOpen(struct super_block *sb)

mutex_lock(&jfs_log_mutex);
list_for_each_entry(log, &jfs_external_logs, journal_list) {
- if (log->bdev->bd_dev == sbi->logdev) {
+ if (log->bdev_handle->bdev->bd_dev == sbi->logdev) {
if (!uuid_equal(&log->uuid, &sbi->loguuid)) {
jfs_warn("wrong uuid on JFS journal");
mutex_unlock(&jfs_log_mutex);
@@ -1100,14 +1100,14 @@ int lmLogOpen(struct super_block *sb)
* file systems to log may have n-to-1 relationship;
*/

- bdev = blkdev_get_by_dev(sbi->logdev, BLK_OPEN_READ | BLK_OPEN_WRITE,
- log, NULL);
- if (IS_ERR(bdev)) {
- rc = PTR_ERR(bdev);
+ bdev_handle = bdev_open_by_dev(sbi->logdev,
+ BLK_OPEN_READ | BLK_OPEN_WRITE, log, NULL);
+ if (IS_ERR(bdev_handle)) {
+ rc = PTR_ERR(bdev_handle);
goto free;
}

- log->bdev = bdev;
+ log->bdev_handle = bdev_handle;
uuid_copy(&log->uuid, &sbi->loguuid);

/*
@@ -1141,7 +1141,7 @@ int lmLogOpen(struct super_block *sb)
lbmLogShutdown(log);

close: /* close external log device */
- blkdev_put(bdev, log);
+ bdev_release(bdev_handle);

free: /* free log descriptor */
mutex_unlock(&jfs_log_mutex);
@@ -1162,7 +1162,7 @@ static int open_inline_log(struct super_block *sb)
init_waitqueue_head(&log->syncwait);

set_bit(log_INLINELOG, &log->flag);
- log->bdev = sb->s_bdev;
+ log->bdev_handle = sb->s_bdev_handle;
log->base = addressPXD(&JFS_SBI(sb)->logpxd);
log->size = lengthPXD(&JFS_SBI(sb)->logpxd) >>
(L2LOGPSIZE - sb->s_blocksize_bits);
@@ -1436,7 +1436,7 @@ int lmLogClose(struct super_block *sb)
{
struct jfs_sb_info *sbi = JFS_SBI(sb);
struct jfs_log *log = sbi->log;
- struct block_device *bdev;
+ struct bdev_handle *bdev_handle;
int rc = 0;

jfs_info("lmLogClose: log:0x%p", log);
@@ -1482,10 +1482,10 @@ int lmLogClose(struct super_block *sb)
* external log as separate logical volume
*/
list_del(&log->journal_list);
- bdev = log->bdev;
+ bdev_handle = log->bdev_handle;
rc = lmLogShutdown(log);

- blkdev_put(bdev, log);
+ bdev_release(bdev_handle);

kfree(log);

@@ -1972,7 +1972,7 @@ static int lbmRead(struct jfs_log * log, int pn, struct lbuf ** bpp)

bp->l_flag |= lbmREAD;

- bio = bio_alloc(log->bdev, 1, REQ_OP_READ, GFP_NOFS);
+ bio = bio_alloc(log->bdev_handle->bdev, 1, REQ_OP_READ, GFP_NOFS);
bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
__bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset);
BUG_ON(bio->bi_iter.bi_size != LOGPSIZE);
@@ -2113,7 +2113,8 @@ static void lbmStartIO(struct lbuf * bp)

jfs_info("lbmStartIO");

- bio = bio_alloc(log->bdev, 1, REQ_OP_WRITE | REQ_SYNC, GFP_NOFS);
+ bio = bio_alloc(log->bdev_handle->bdev, 1, REQ_OP_WRITE | REQ_SYNC,
+ GFP_NOFS);
bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
__bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset);
BUG_ON(bio->bi_iter.bi_size != LOGPSIZE);
diff --git a/fs/jfs/jfs_logmgr.h b/fs/jfs/jfs_logmgr.h
index 805877ce5020..84aa2d253907 100644
--- a/fs/jfs/jfs_logmgr.h
+++ b/fs/jfs/jfs_logmgr.h
@@ -356,7 +356,7 @@ struct jfs_log {
* before writing syncpt.
*/
struct list_head journal_list; /* Global list */
- struct block_device *bdev; /* 4: log lv pointer */
+ struct bdev_handle *bdev_handle; /* 4: log lv pointer */
int serial; /* 4: log mount serial number */

s64 base; /* @8: log extent address (inline log ) */
diff --git a/fs/jfs/jfs_mount.c b/fs/jfs/jfs_mount.c
index b83aae56a1f2..415eb65a36ff 100644
--- a/fs/jfs/jfs_mount.c
+++ b/fs/jfs/jfs_mount.c
@@ -430,7 +430,8 @@ int updateSuper(struct super_block *sb, uint state)

if (state == FM_MOUNT) {
/* record log's dev_t and mount serial number */
- j_sb->s_logdev = cpu_to_le32(new_encode_dev(sbi->log->bdev->bd_dev));
+ j_sb->s_logdev = cpu_to_le32(
+ new_encode_dev(sbi->log->bdev_handle->bdev->bd_dev));
j_sb->s_logserial = cpu_to_le32(sbi->log->serial);
} else if (state == FM_CLEAN) {
/*
--
2.35.3