From a36bb5f9a90c9bab05b7084d21718450e8067fb0 Mon Sep 17 00:00:00 2001 From: Nikolay Borisov Date: Thu, 1 Nov 2018 14:09:51 +0200 Subject: [PATCH] btrfs: Remove extent_io_ops::clear_bit_hook callback This is the counterpart to ex-set_bit_hook (now btrfs_set_delalloc_extent), similar to what was done before remove clear_bit_hook and rename the function. No functional changes. Reviewed-by: Josef Bacik Signed-off-by: Nikolay Borisov Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/ctree.h | 2 ++ fs/btrfs/extent_io.c | 12 ++++-------- fs/btrfs/extent_io.h | 3 --- fs/btrfs/inode.c | 13 ++++++------- 4 files changed, 12 insertions(+), 18 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9a0e4e1..18ed464 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -3152,6 +3152,8 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans, u64 new_dirid); void btrfs_set_delalloc_extent(struct inode *inode, struct extent_state *state, unsigned *bits); +void btrfs_clear_delalloc_extent(struct inode *inode, + struct extent_state *state, unsigned *bits); int btrfs_merge_bio_hook(struct page *page, unsigned long offset, size_t size, struct bio *bio, unsigned long bio_flags); diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 1678ada..b9aadbf 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -404,13 +404,6 @@ static void merge_state(struct extent_io_tree *tree, } } -static void clear_state_cb(struct extent_io_tree *tree, - struct extent_state *state, unsigned *bits) -{ - if (tree->ops && tree->ops->clear_bit_hook) - tree->ops->clear_bit_hook(tree->private_data, state, bits); -} - static void set_state_bits(struct extent_io_tree *tree, struct extent_state *state, unsigned *bits, struct extent_changeset *changeset); @@ -525,7 +518,10 @@ static struct extent_state *clear_state_bit(struct extent_io_tree *tree, WARN_ON(range > tree->dirty_bytes); tree->dirty_bytes -= range; } - clear_state_cb(tree, state, bits); + + if (tree->private_data && is_data_inode(tree->private_data)) + btrfs_clear_delalloc_extent(tree->private_data, state, bits); + ret = add_extent_changeset(state, bits_to_clear, changeset, 0); BUG_ON(ret < 0); state->state &= ~bits_to_clear; diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index b3235d4..a3a3302 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -106,9 +106,6 @@ struct extent_io_ops { /* * Optional hooks, called if the pointer is not NULL */ - void (*clear_bit_hook)(void *private_data, - struct extent_state *state, - unsigned *bits); void (*merge_extent_hook)(void *private_data, struct extent_state *new, struct extent_state *other); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index f95733f..79a900d 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1806,14 +1806,14 @@ void btrfs_set_delalloc_extent(struct inode *inode, struct extent_state *state, } /* - * extent_io.c clear_bit_hook, see set_bit_hook for why + * Once a range is no longer delalloc this function ensures that proper + * accounting happens. */ -static void btrfs_clear_bit_hook(void *private_data, - struct extent_state *state, - unsigned *bits) +void btrfs_clear_delalloc_extent(struct inode *vfs_inode, + struct extent_state *state, unsigned *bits) { - struct btrfs_inode *inode = BTRFS_I((struct inode *)private_data); - struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb); + struct btrfs_inode *inode = BTRFS_I(vfs_inode); + struct btrfs_fs_info *fs_info = btrfs_sb(vfs_inode->i_sb); u64 len = state->end + 1 - state->start; u32 num_extents = count_max_extents(len); @@ -10509,7 +10509,6 @@ static const struct extent_io_ops btrfs_extent_io_ops = { .readpage_io_failed_hook = btrfs_readpage_io_failed_hook, /* optional callbacks */ - .clear_bit_hook = btrfs_clear_bit_hook, .merge_extent_hook = btrfs_merge_extent_hook, .split_extent_hook = btrfs_split_extent_hook, }; -- 2.7.4