[PATCH v3 3/5] btrfs: remove btrfsic_submit_bh()

Johannes Thumshirn
2020-01-27T15:59:42Z

Now that the last use of btrfsic_submit_bh() is gone, remove the function
as well.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
---
fs/btrfs/check-integrity.c | 57 --------------------------------------
fs/btrfs/check-integrity.h | 2 --
2 files changed, 59 deletions(-)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index a0ce69f2d27c..e7507985435e 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2730,63 +2730,6 @@ static struct btrfsic_dev_state *btrfsic_dev_state_lookup(dev_t dev)
&btrfsic_dev_state_hashtable);
}

-int btrfsic_submit_bh(int op, int op_flags, struct buffer_head *bh)
-{
- struct btrfsic_dev_state *dev_state;
-
- if (!btrfsic_is_initialized)
- return submit_bh(op, op_flags, bh);
-
- mutex_lock(&btrfsic_mutex);
- /* since btrfsic_submit_bh() might also be called before
- * btrfsic_mount(), this might return NULL */
- dev_state = btrfsic_dev_state_lookup(bh->b_bdev->bd_dev);
-
- /* Only called to write the superblock (incl. FLUSH/FUA) */
- if (NULL != dev_state &&
- (op == REQ_OP_WRITE) && bh->b_size > 0) {
- u64 dev_bytenr;
-
- dev_bytenr = BTRFS_BDEV_BLOCKSIZE * bh->b_blocknr;
- if (dev_state->state->print_mask &
- BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
- pr_info("submit_bh(op=0x%x,0x%x, blocknr=%llu (bytenr %llu), size=%zu, data=%p, bdev=%p)\n",
- op, op_flags, (unsigned long long)bh->b_blocknr,
- dev_bytenr, bh->b_size, bh->b_data, bh->b_bdev);
- btrfsic_process_written_block(dev_state, dev_bytenr,
- &bh->b_data, 1, NULL,
- NULL, bh, op_flags);
- } else if (NULL != dev_state && (op_flags & REQ_PREFLUSH)) {
- if (dev_state->state->print_mask &
- BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH)
- pr_info("submit_bh(op=0x%x,0x%x FLUSH, bdev=%p)\n",
- op, op_flags, bh->b_bdev);
- if (!dev_state->dummy_block_for_bio_bh_flush.is_iodone) {
- if ((dev_state->state->print_mask &
- (BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
- BTRFSIC_PRINT_MASK_VERBOSE)))
- pr_info("btrfsic_submit_bh(%s) with FLUSH but dummy block already in use (ignored)!\n",
- dev_state->name);
- } else {
- struct btrfsic_block *const block =
- &dev_state->dummy_block_for_bio_bh_flush;
-
- block->is_iodone = 0;
- block->never_written = 0;
- block->iodone_w_error = 0;
- block->flush_gen = dev_state->last_flush_gen + 1;
- block->submit_bio_bh_rw = op_flags;
- block->orig_bio_bh_private = bh->b_private;
- block->orig_bio_bh_end_io.bh = bh->b_end_io;
- block->next_in_same_bio = NULL;
- bh->b_private = block;
- bh->b_end_io = btrfsic_bh_end_io;
- }
- }
- mutex_unlock(&btrfsic_mutex);
- return submit_bh(op, op_flags, bh);
-}
-
static void __btrfsic_submit_bio(struct bio *bio)
{
struct btrfsic_dev_state *dev_state;
diff --git a/fs/btrfs/check-integrity.h b/fs/btrfs/check-integrity.h
index 9bf4359cc44c..bcc730a06cb5 100644
--- a/fs/btrfs/check-integrity.h
+++ b/fs/btrfs/check-integrity.h
@@ -7,11 +7,9 @@
#define BTRFS_CHECK_INTEGRITY_H

#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
-int btrfsic_submit_bh(int op, int op_flags, struct buffer_head *bh);
void btrfsic_submit_bio(struct bio *bio);
int btrfsic_submit_bio_wait(struct bio *bio);
#else
-#define btrfsic_submit_bh submit_bh
#define btrfsic_submit_bio submit_bio
#define btrfsic_submit_bio_wait submit_bio_wait
#endif
--
2.24.1