From: Yu Kuai <yukuai3@xxxxxxxxxx>
Which is more efficiency, and also prepare to remove the field
'bd_inode' from block_device.
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
fs/ext4/dir.c | 2 +-
fs/ext4/ext4_jbd2.c | 2 +-
fs/ext4/super.c | 8 ++++----
3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index 3985f8c33f95..6e9fe408642b 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -192,7 +192,7 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
(PAGE_SHIFT - inode->i_blkbits);
if (!ra_has_index(&file->f_ra, index))
page_cache_sync_readahead(
- sb->s_bdev->bd_inode->i_mapping,
+ bdev_inode(sb->s_bdev)->i_mapping,
&file->f_ra, file,
index, 1);
file->f_ra.prev_pos = (loff_t)index << PAGE_SHIFT;
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index d1a2e6624401..e0e7f71d022d 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -206,7 +206,7 @@ static void ext4_journal_abort_handle(const char *caller, unsigned int line,
static void ext4_check_bdev_write_error(struct super_block *sb)
{
- struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping;
+ struct address_space *mapping = bdev_inode(sb->s_bdev)->i_mapping;
struct ext4_sb_info *sbi = EXT4_SB(sb);
int err;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c5fcf377ab1f..da6af2205e55 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -244,7 +244,7 @@ static struct buffer_head *__ext4_sb_bread_gfp(struct super_block *sb,
struct buffer_head *ext4_sb_bread(struct super_block *sb, sector_t block,
blk_opf_t op_flags)
{
- gfp_t gfp = mapping_gfp_constraint(sb->s_bdev->bd_inode->i_mapping,
+ gfp_t gfp = mapping_gfp_constraint(bdev_inode(sb->s_bdev)->i_mapping,
~__GFP_FS) | __GFP_MOVABLE;
return __ext4_sb_bread_gfp(sb, block, op_flags, gfp);
@@ -253,7 +253,7 @@ struct buffer_head *ext4_sb_bread(struct super_block *sb, sector_t block,
struct buffer_head *ext4_sb_bread_unmovable(struct super_block *sb,
sector_t block)
{
- gfp_t gfp = mapping_gfp_constraint(sb->s_bdev->bd_inode->i_mapping,
+ gfp_t gfp = mapping_gfp_constraint(bdev_inode(sb->s_bdev)->i_mapping,
~__GFP_FS);
return __ext4_sb_bread_gfp(sb, block, 0, gfp);
@@ -502,7 +502,7 @@ static void ext4_maybe_update_superblock(struct super_block *sb)
*/
static int block_device_ejected(struct super_block *sb)
{
- struct inode *bd_inode = sb->s_bdev->bd_inode;
+ struct inode *bd_inode = bdev_inode(sb->s_bdev);
struct backing_dev_info *bdi = inode_to_bdi(bd_inode);
return bdi->dev == NULL;
@@ -5585,7 +5585,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
* used to detect the metadata async write error.
*/
spin_lock_init(&sbi->s_bdev_wb_lock);
- errseq_check_and_advance(&sb->s_bdev->bd_inode->i_mapping->wb_err,
+ errseq_check_and_advance(&bdev_inode(sb->s_bdev)->i_mapping->wb_err,
&sbi->s_bdev_wb_err);
EXT4_SB(sb)->s_mount_state |= EXT4_ORPHAN_FS;
ext4_orphan_cleanup(sb, es);
--
2.39.2
