From: Yu Kuai <yukuai3@xxxxxxxxxx> Changes in v2: - remove some bdev apis that is not necessary; - pass in offset for bdev_read_folio() and __bdev_get_folio(); - remove bdev_gfp_constraint() and add a new helper in fs/buffer.c to prevent access bd_indoe() directly from mapping_gfp_constraint() in ext4.(patch 15, 16); - remove block_device_ejected() from ext4. Noted that following is not changed yet since v1: - Chirstoph suggested to remove invalidate_inode_pages2() from xen_update_blkif_status(), however, this sync_bdev() + invalidate_bdev() is used from many modules, and I'll leave this for later if we want to kill all of them. - Matthew suggested that pass in valid file_ra_state for cramfs, however, I don't see an easy way to do this for cramfs_lookup() and cramfs_read_super(). Patch 1 add some bdev apis, then follow up patches will use these apis to avoid access bd_inode directly, and hopefully the field bd_inode can be removed eventually(after figure out a way for fs/buffer.c). Yu Kuai (18): block: add some bdev apis xen/blkback: use bdev api in xen_update_blkif_status() bcache: use bdev api in read_super() mtd: block2mtd: use bdev apis s390/dasd: use bdev api in dasd_format() scsicam: use bdev api in scsi_bios_ptable() bcachefs: remove dead function bdev_sectors() bio: export bio_add_folio_nofail() btrfs: use bdev apis cramfs: use bdev apis in cramfs_blkdev_read() erofs: use bdev api gfs2: use bdev api nilfs2: use bdev api in nilfs_attach_log_writer() jbd2: use bdev apis buffer: add a new helper to read sb block ext4: use new helper to read sb block ext4: remove block_device_ejected() ext4: use bdev apis block/bdev.c | 70 ++++++++++++++++++++++++++ block/bio.c | 1 + block/blk.h | 2 - drivers/block/xen-blkback/xenbus.c | 3 +- drivers/md/bcache/super.c | 11 ++-- drivers/mtd/devices/block2mtd.c | 81 +++++++++++++----------------- drivers/s390/block/dasd_ioctl.c | 5 +- drivers/scsi/scsicam.c | 4 +- fs/bcachefs/util.h | 5 -- fs/btrfs/disk-io.c | 71 ++++++++++++-------------- fs/btrfs/volumes.c | 17 +++---- fs/btrfs/zoned.c | 15 +++--- fs/buffer.c | 68 +++++++++++++++++-------- fs/cramfs/inode.c | 36 +++++-------- fs/erofs/data.c | 18 ++++--- fs/erofs/internal.h | 2 + fs/ext4/dir.c | 6 +-- fs/ext4/ext4.h | 13 ----- fs/ext4/ext4_jbd2.c | 6 +-- fs/ext4/inode.c | 8 +-- fs/ext4/super.c | 66 ++++-------------------- fs/ext4/symlink.c | 2 +- fs/gfs2/glock.c | 2 +- fs/gfs2/ops_fstype.c | 2 +- fs/jbd2/journal.c | 3 +- fs/jbd2/recovery.c | 6 +-- fs/nilfs2/segment.c | 2 +- include/linux/blkdev.h | 17 +++++++ include/linux/buffer_head.h | 18 ++++++- 29 files changed, 301 insertions(+), 259 deletions(-) -- 2.39.2
