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btrfs: drop extent_io_ops::tree_fs_info callback 

All implementations of the callback are trivial and do the same and
there's only one user. Merge everything together.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
hifive-unleashed-5.1
David Sterba 2018-07-18 19:23:45 +02:00
parent e288c080dd
commit 05912a3c04
4 changed files with 4 additions and 25 deletions
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7
fs/btrfs/disk-io.c
View File

@ -4523,12 +4523,6 @@ static int btrfs_cleanup_transaction(struct btrfs_fs_info *fs_info)
return 0;
}
static struct btrfs_fs_info *btree_fs_info(void *private_data)
{
struct inode *inode = private_data;
return btrfs_sb(inode->i_sb);
}
static const struct extent_io_ops btree_extent_io_ops = {
/* mandatory callbacks */
.submit_bio_hook = btree_submit_bio_hook,
@ -4537,7 +4531,6 @@ static const struct extent_io_ops btree_extent_io_ops = {
.merge_bio_hook = btrfs_merge_bio_hook,
.readpage_io_failed_hook = btree_io_failed_hook,
.set_range_writeback = btrfs_set_range_writeback,
.tree_fs_info = btree_fs_info,
/* optional callbacks */
};

14
fs/btrfs/extent_io.c
View File

@ -140,14 +140,6 @@ static int add_extent_changeset(struct extent_state *state, unsigned bits,
static void flush_write_bio(struct extent_page_data *epd);
static inline struct btrfs_fs_info *
tree_fs_info(struct extent_io_tree *tree)
{
if (tree->ops)
return tree->ops->tree_fs_info(tree->private_data);
return NULL;
}
int __init extent_io_init(void)
{
extent_state_cache = kmem_cache_create("btrfs_extent_state",
@ -564,8 +556,10 @@ alloc_extent_state_atomic(struct extent_state *prealloc)
static void extent_io_tree_panic(struct extent_io_tree *tree, int err)
{
btrfs_panic(tree_fs_info(tree), err,
"Locking error: Extent tree was modified by another thread while locked.");
struct inode *inode = tree->private_data;
btrfs_panic(btrfs_sb(inode->i_sb), err,
"locking error: extent tree was modified by another thread while locked");
}
/*

1
fs/btrfs/extent_io.h
View File

@ -105,7 +105,6 @@ struct extent_io_ops {
size_t size, struct bio *bio,
unsigned long bio_flags);
int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
struct btrfs_fs_info *(*tree_fs_info)(void *private_data);
void (*set_range_writeback)(void *private_data, u64 start, u64 end);
/*

7
fs/btrfs/inode.c
View File

@ -10473,12 +10473,6 @@ static int btrfs_readpage_io_failed_hook(struct page *page, int failed_mirror)
return -EAGAIN;
}
static struct btrfs_fs_info *iotree_fs_info(void *private_data)
{
struct inode *inode = private_data;
return btrfs_sb(inode->i_sb);
}
static void btrfs_check_extent_io_range(void *private_data, const char *caller,
u64 start, u64 end)
{
@ -10553,7 +10547,6 @@ static const struct extent_io_ops btrfs_extent_io_ops = {
.readpage_end_io_hook = btrfs_readpage_end_io_hook,
.merge_bio_hook = btrfs_merge_bio_hook,
.readpage_io_failed_hook = btrfs_readpage_io_failed_hook,
.tree_fs_info = iotree_fs_info,
.set_range_writeback = btrfs_set_range_writeback,
/* optional callbacks */