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| author | Naohiro Aota <naohiro.aota@wdc.com> | 2020-02-25 04:56:17 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:49 +0100 |
| commit | ea544149a49f3aad4b6f164507608e59c12bbc11 (patch) | |
| tree | e27c3f5ad3f5f564559a7e99bd3da9b92eed84b0 /fs/btrfs/extent-tree.c | |
| parent | btrfs: introduce extent allocation policy (diff) | |
| download | linux-ea544149a49f3aad4b6f164507608e59c12bbc11.tar.xz linux-ea544149a49f3aad4b6f164507608e59c12bbc11.zip | |
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>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index bd0d13661ea7..4f68291d03ea 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3483,6 +3483,9 @@ struct find_free_extent_ctl { /* Found result */ u64 found_offset; + /* Hint where to start looking for an empty space */ + u64 hint_byte; + /* Allocation policy */ enum btrfs_extent_allocation_policy policy; }; @@ -3797,7 +3800,7 @@ static int find_free_extent_update_loop(struct btrfs_fs_info *fs_info, */ static noinline int find_free_extent(struct btrfs_fs_info *fs_info, u64 ram_bytes, u64 num_bytes, u64 empty_size, - u64 hint_byte, struct btrfs_key *ins, + u64 hint_byte_orig, struct btrfs_key *ins, u64 flags, int delalloc) { int ret = 0; @@ -3822,6 +3825,7 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info, ffe_ctl.have_caching_bg = false; ffe_ctl.orig_have_caching_bg = false; ffe_ctl.found_offset = 0; + ffe_ctl.hint_byte = hint_byte_orig; ffe_ctl.policy = BTRFS_EXTENT_ALLOC_CLUSTERED; ins->type = BTRFS_EXTENT_ITEM_KEY; @@ -3864,14 +3868,14 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info, if (last_ptr) { spin_lock(&last_ptr->lock); if (last_ptr->block_group) - hint_byte = last_ptr->window_start; + ffe_ctl.hint_byte = last_ptr->window_start; if (last_ptr->fragmented) { /* * We still set window_start so we can keep track of the * last place we found an allocation to try and save * some time. */ - hint_byte = last_ptr->window_start; + ffe_ctl.hint_byte = last_ptr->window_start; use_cluster = false; } spin_unlock(&last_ptr->lock); @@ -3879,8 +3883,8 @@ static noinline int find_free_extent(struct btrfs_fs_info *fs_info, ffe_ctl.search_start = max(ffe_ctl.search_start, first_logical_byte(fs_info, 0)); - ffe_ctl.search_start = max(ffe_ctl.search_start, hint_byte); - if (ffe_ctl.search_start == hint_byte) { + ffe_ctl.search_start = max(ffe_ctl.search_start, ffe_ctl.hint_byte); + if (ffe_ctl.search_start == ffe_ctl.hint_byte) { block_group = btrfs_lookup_block_group(fs_info, ffe_ctl.search_start); /* |