diff options
| author | Naohiro Aota <naohiro.aota@wdc.com> | 2020-02-25 12:56:22 +0900 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-03-23 17:01:50 +0100 |
| commit | 0ab9724bf5f320f79d6f7e214f4fd1f95449a917 (patch) | |
| tree | 19c3b3fceaac3d4104bcee0da67371fe051bdc26 /fs/btrfs/extent-tree.c | |
| parent | baba50624fe57320837cf2aa566769385872d2af (diff) | |
btrfs: factor out found_extent() for extent allocation
Factor out found_extent() from find_free_extent_update_loop(). This
function is called when a proper extent is found and before returning
from find_free_extent(). Hook functions like found_extent_clustered()
should save information for a next allocation.
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 | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 6d4f53e92833..dfa88a795c3f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -3711,6 +3711,30 @@ static void release_block_group(struct btrfs_block_group *block_group, btrfs_release_block_group(block_group, delalloc); } +static void found_extent_clustered(struct find_free_extent_ctl *ffe_ctl, + struct btrfs_key *ins) +{ + struct btrfs_free_cluster *last_ptr = ffe_ctl->last_ptr; + + if (!ffe_ctl->use_cluster && last_ptr) { + spin_lock(&last_ptr->lock); + last_ptr->window_start = ins->objectid; + spin_unlock(&last_ptr->lock); + } +} + +static void found_extent(struct find_free_extent_ctl *ffe_ctl, + struct btrfs_key *ins) +{ + switch (ffe_ctl->policy) { + case BTRFS_EXTENT_ALLOC_CLUSTERED: + found_extent_clustered(ffe_ctl, ins); + break; + default: + BUG(); + } +} + /* * Return >0 means caller needs to re-search for free extent * Return 0 means we have the needed free extent. @@ -3737,11 +3761,7 @@ static int find_free_extent_update_loop(struct btrfs_fs_info *fs_info, return 1; if (ins->objectid) { - if (!use_cluster && last_ptr) { - spin_lock(&last_ptr->lock); - last_ptr->window_start = ins->objectid; - spin_unlock(&last_ptr->lock); - } + found_extent(ffe_ctl, ins); return 0; } |