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btrfs: move hint_byte into find_free_extent_ctl
This commit moves hint_byte into find_free_extent_ctl, so that we can modify the hint_byte in the other functions. This will help us split find_free_extent further. This commit also renames the function argument "hint_byte" to "hint_byte_orig" to avoid misuse. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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parent
cb2f96f8ab
commit
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1 changed files with 9 additions and 5 deletions
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@ -3483,6 +3483,9 @@ struct find_free_extent_ctl {
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/* Found result */
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u64 found_offset;
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/* Hint where to start looking for an empty space */
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u64 hint_byte;
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/* Allocation policy */
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enum btrfs_extent_allocation_policy policy;
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};
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@ -3797,7 +3800,7 @@ static int find_free_extent_update_loop(struct btrfs_fs_info *fs_info,
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*/
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static noinline int find_free_extent(struct btrfs_fs_info *fs_info,
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u64 ram_bytes, u64 num_bytes, u64 empty_size,
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u64 hint_byte, struct btrfs_key *ins,
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u64 hint_byte_orig, struct btrfs_key *ins,
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u64 flags, int delalloc)
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{
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int ret = 0;
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@ -3822,6 +3825,7 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info,
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ffe_ctl.have_caching_bg = false;
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ffe_ctl.orig_have_caching_bg = false;
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ffe_ctl.found_offset = 0;
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ffe_ctl.hint_byte = hint_byte_orig;
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ffe_ctl.policy = BTRFS_EXTENT_ALLOC_CLUSTERED;
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ins->type = BTRFS_EXTENT_ITEM_KEY;
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@ -3864,14 +3868,14 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info,
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if (last_ptr) {
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spin_lock(&last_ptr->lock);
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if (last_ptr->block_group)
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hint_byte = last_ptr->window_start;
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ffe_ctl.hint_byte = last_ptr->window_start;
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if (last_ptr->fragmented) {
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/*
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* We still set window_start so we can keep track of the
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* last place we found an allocation to try and save
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* some time.
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*/
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hint_byte = last_ptr->window_start;
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ffe_ctl.hint_byte = last_ptr->window_start;
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use_cluster = false;
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}
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spin_unlock(&last_ptr->lock);
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@ -3879,8 +3883,8 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info,
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ffe_ctl.search_start = max(ffe_ctl.search_start,
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first_logical_byte(fs_info, 0));
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ffe_ctl.search_start = max(ffe_ctl.search_start, hint_byte);
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if (ffe_ctl.search_start == hint_byte) {
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ffe_ctl.search_start = max(ffe_ctl.search_start, ffe_ctl.hint_byte);
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if (ffe_ctl.search_start == ffe_ctl.hint_byte) {
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block_group = btrfs_lookup_block_group(fs_info,
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ffe_ctl.search_start);
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/*
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