btrfs_calc_trunc_metadata_size differs from trans_metadata_size in that it doesn't take into account any splitting at the levels, because truncate will never split nodes. However truncate _and_ changing will never split nodes, so rename btrfs_calc_trunc_metadata_size to btrfs_calc_metadata_size. Also btrfs_calc_trans_metadata_size is purely for inserting items, so rename this to btrfs_calc_insert_metadata_size. Making these clearer will help when I start using them differently in upcoming patches.
Signed-off-by: Josef Bacik <[email protected]> Reviewed-by: Nikolay Borisov <[email protected]> --- fs/btrfs/block-group.c | 4 ++-- fs/btrfs/ctree.h | 14 +++++++++----- fs/btrfs/delalloc-space.c | 8 ++++---- fs/btrfs/delayed-inode.c | 4 ++-- fs/btrfs/delayed-ref.c | 8 ++++---- fs/btrfs/file.c | 4 ++-- fs/btrfs/free-space-cache.c | 4 ++-- fs/btrfs/inode-map.c | 2 +- fs/btrfs/inode.c | 6 +++--- fs/btrfs/props.c | 2 +- fs/btrfs/root-tree.c | 2 +- fs/btrfs/space-info.c | 2 +- fs/btrfs/transaction.c | 4 ++-- 13 files changed, 34 insertions(+), 30 deletions(-) diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index afae5c731904..3147e840f839 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -3014,8 +3014,8 @@ void check_system_chunk(struct btrfs_trans_handle *trans, u64 type) num_devs = get_profile_num_devs(fs_info, type); /* num_devs device items to update and 1 chunk item to add or remove */ - thresh = btrfs_calc_trunc_metadata_size(fs_info, num_devs) + - btrfs_calc_trans_metadata_size(fs_info, 1); + thresh = btrfs_calc_metadata_size(fs_info, num_devs) + + btrfs_calc_insert_metadata_size(fs_info, 1); if (left < thresh && btrfs_test_opt(fs_info, ENOSPC_DEBUG)) { btrfs_info(fs_info, "left=%llu, need=%llu, flags=%llu", diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index b161224b5a0b..66fb41cadbfa 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2450,17 +2450,21 @@ int btrfs_get_extent_inline_ref_type(const struct extent_buffer *eb, u64 btrfs_csum_bytes_to_leaves(struct btrfs_fs_info *fs_info, u64 csum_bytes); -static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_fs_info *fs_info, - unsigned num_items) +/* + * Use this if we would be adding new items, as we could split nodes as we cow + * down the tree. + */ +static inline u64 btrfs_calc_insert_metadata_size(struct btrfs_fs_info *fs_info, + unsigned num_items) { return (u64)fs_info->nodesize * BTRFS_MAX_LEVEL * 2 * num_items; } /* - * Doing a truncate won't result in new nodes or leaves, just what we need for - * COW. + * Doing a truncate or a modification won't result in new nodes or leaves, just + * what we need for COW. */ -static inline u64 btrfs_calc_trunc_metadata_size(struct btrfs_fs_info *fs_info, +static inline u64 btrfs_calc_metadata_size(struct btrfs_fs_info *fs_info, unsigned num_items) { return (u64)fs_info->nodesize * BTRFS_MAX_LEVEL * num_items; diff --git a/fs/btrfs/delalloc-space.c b/fs/btrfs/delalloc-space.c index 1fc6bef3ccdf..2412be4a3de2 100644 --- a/fs/btrfs/delalloc-space.c +++ b/fs/btrfs/delalloc-space.c @@ -252,12 +252,12 @@ static void btrfs_calculate_inode_block_rsv_size(struct btrfs_fs_info *fs_info, lockdep_assert_held(&inode->lock); outstanding_extents = inode->outstanding_extents; if (outstanding_extents) - reserve_size = btrfs_calc_trans_metadata_size(fs_info, + reserve_size = btrfs_calc_insert_metadata_size(fs_info, outstanding_extents + 1); csum_leaves = btrfs_csum_bytes_to_leaves(fs_info, inode->csum_bytes); - reserve_size += btrfs_calc_trans_metadata_size(fs_info, - csum_leaves); + reserve_size += btrfs_calc_insert_metadata_size(fs_info, + csum_leaves); /* * For qgroup rsv, the calculation is very simple: * account one nodesize for each outstanding extent @@ -280,7 +280,7 @@ static void calc_inode_reservations(struct btrfs_fs_info *fs_info, u64 csum_leaves = btrfs_csum_bytes_to_leaves(fs_info, num_bytes); /* We add one for the inode update at finish ordered time */ - *meta_reserve = btrfs_calc_trans_metadata_size(fs_info, + *meta_reserve = btrfs_calc_insert_metadata_size(fs_info, nr_extents + csum_leaves + 1); *qgroup_reserve = nr_extents * fs_info->nodesize; } diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 6858a05606dd..de87ea7ce84d 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -558,7 +558,7 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans, src_rsv = trans->block_rsv; dst_rsv = &fs_info->delayed_block_rsv; - num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, 1); /* * Here we migrate space rsv from transaction rsv, since have already @@ -612,7 +612,7 @@ static int btrfs_delayed_inode_reserve_metadata( src_rsv = trans->block_rsv; dst_rsv = &fs_info->delayed_block_rsv; - num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, 1); /* * btrfs_dirty_inode will update the inode under btrfs_join_transaction diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c index 3822edbf54a7..df3bd880061d 100644 --- a/fs/btrfs/delayed-ref.c +++ b/fs/btrfs/delayed-ref.c @@ -79,7 +79,7 @@ int btrfs_should_throttle_delayed_refs(struct btrfs_trans_handle *trans) void btrfs_delayed_refs_rsv_release(struct btrfs_fs_info *fs_info, int nr) { struct btrfs_block_rsv *block_rsv = &fs_info->delayed_refs_rsv; - u64 num_bytes = btrfs_calc_trans_metadata_size(fs_info, nr); + u64 num_bytes = btrfs_calc_insert_metadata_size(fs_info, nr); u64 released = 0; released = __btrfs_block_rsv_release(fs_info, block_rsv, num_bytes, @@ -105,8 +105,8 @@ void btrfs_update_delayed_refs_rsv(struct btrfs_trans_handle *trans) if (!trans->delayed_ref_updates) return; - num_bytes = btrfs_calc_trans_metadata_size(fs_info, - trans->delayed_ref_updates); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, + trans->delayed_ref_updates); spin_lock(&delayed_rsv->lock); delayed_rsv->size += num_bytes; delayed_rsv->full = 0; @@ -174,7 +174,7 @@ int btrfs_delayed_refs_rsv_refill(struct btrfs_fs_info *fs_info, enum btrfs_reserve_flush_enum flush) { struct btrfs_block_rsv *block_rsv = &fs_info->delayed_refs_rsv; - u64 limit = btrfs_calc_trans_metadata_size(fs_info, 1); + u64 limit = btrfs_calc_insert_metadata_size(fs_info, 1); u64 num_bytes = 0; int ret = -ENOSPC; diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index b31991f0f440..1cb694c96500 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -2511,7 +2511,7 @@ int btrfs_punch_hole_range(struct inode *inode, struct btrfs_path *path, struct btrfs_trans_handle **trans_out) { struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); - u64 min_size = btrfs_calc_trans_metadata_size(fs_info, 1); + u64 min_size = btrfs_calc_insert_metadata_size(fs_info, 1); u64 ino_size = round_up(inode->i_size, fs_info->sectorsize); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans = NULL; @@ -2530,7 +2530,7 @@ int btrfs_punch_hole_range(struct inode *inode, struct btrfs_path *path, ret = -ENOMEM; goto out; } - rsv->size = btrfs_calc_trans_metadata_size(fs_info, 1); + rsv->size = btrfs_calc_insert_metadata_size(fs_info, 1); rsv->failfast = 1; /* diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index faaf57a7c289..265dc75f7a7a 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -211,8 +211,8 @@ int btrfs_check_trunc_cache_free_space(struct btrfs_fs_info *fs_info, int ret; /* 1 for slack space, 1 for updating the inode */ - needed_bytes = btrfs_calc_trunc_metadata_size(fs_info, 1) + - btrfs_calc_trans_metadata_size(fs_info, 1); + needed_bytes = btrfs_calc_insert_metadata_size(fs_info, 1) + + btrfs_calc_metadata_size(fs_info, 1); spin_lock(&rsv->lock); if (rsv->reserved < needed_bytes) diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index 86031cdfc356..63cad7865d75 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -436,7 +436,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root, * 1 item for free space object * 3 items for pre-allocation */ - trans->bytes_reserved = btrfs_calc_trans_metadata_size(fs_info, 10); + trans->bytes_reserved = btrfs_calc_insert_metadata_size(fs_info, 10); ret = btrfs_block_rsv_add(root, trans->block_rsv, trans->bytes_reserved, BTRFS_RESERVE_NO_FLUSH); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e12fcd3adcc8..aece5dd0e7a8 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5373,7 +5373,7 @@ static struct btrfs_trans_handle *evict_refill_and_join(struct btrfs_root *root, struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv; struct btrfs_trans_handle *trans; - u64 delayed_refs_extra = btrfs_calc_trans_metadata_size(fs_info, 1); + u64 delayed_refs_extra = btrfs_calc_insert_metadata_size(fs_info, 1); int ret; /* @@ -5462,7 +5462,7 @@ void btrfs_evict_inode(struct inode *inode) rsv = btrfs_alloc_block_rsv(fs_info, BTRFS_BLOCK_RSV_TEMP); if (!rsv) goto no_delete; - rsv->size = btrfs_calc_trunc_metadata_size(fs_info, 1); + rsv->size = btrfs_calc_metadata_size(fs_info, 1); rsv->failfast = 1; btrfs_i_size_write(BTRFS_I(inode), 0); @@ -9076,7 +9076,7 @@ static int btrfs_truncate(struct inode *inode, bool skip_writeback) int ret; struct btrfs_trans_handle *trans; u64 mask = fs_info->sectorsize - 1; - u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1); + u64 min_size = btrfs_calc_metadata_size(fs_info, 1); if (!skip_writeback) { ret = btrfs_wait_ordered_range(inode, inode->i_size & (~mask), diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c index e0469816c678..1e664e0b59b8 100644 --- a/fs/btrfs/props.c +++ b/fs/btrfs/props.c @@ -362,7 +362,7 @@ static int inherit_props(struct btrfs_trans_handle *trans, * reservations if we do add more properties in the future. */ if (need_reserve) { - num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, 1); ret = btrfs_block_rsv_add(root, trans->block_rsv, num_bytes, BTRFS_RESERVE_NO_FLUSH); if (ret) diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index 47733fb55df7..3b17b647d002 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -533,7 +533,7 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, return ret; } - num_bytes = btrfs_calc_trans_metadata_size(fs_info, items); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, items); rsv->space_info = btrfs_find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA); ret = btrfs_block_rsv_add(root, rsv, num_bytes, diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index c5939c24c963..a43f6287074b 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -348,7 +348,7 @@ static inline u64 calc_reclaim_items_nr(struct btrfs_fs_info *fs_info, u64 bytes; u64 nr; - bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + bytes = btrfs_calc_insert_metadata_size(fs_info, 1); nr = div64_u64(to_reclaim, bytes); if (!nr) nr = 1; diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 2e3f6778bfa3..f21416d68c2c 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -485,7 +485,7 @@ start_transaction(struct btrfs_root *root, unsigned int num_items, * worth of delayed refs updates in this trans handle, and * refill that amount for whatever is missing in the reserve. */ - num_bytes = btrfs_calc_trans_metadata_size(fs_info, num_items); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, num_items); if (delayed_refs_rsv->full == 0) { delayed_refs_bytes = num_bytes; num_bytes <<= 1; @@ -636,7 +636,7 @@ struct btrfs_trans_handle *btrfs_start_transaction_fallback_global_rsv( if (IS_ERR(trans)) return trans; - num_bytes = btrfs_calc_trans_metadata_size(fs_info, num_items); + num_bytes = btrfs_calc_insert_metadata_size(fs_info, num_items); ret = btrfs_cond_migrate_bytes(fs_info, &fs_info->trans_block_rsv, num_bytes, min_factor); if (ret) { -- 2.21.0
