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btrfs: don't try to delete RAID stripe-extents if we don't need to

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Even if the RAID stripe-tree is not enabled in the filesystem,
do_free_extent_accounting() still calls into btrfs_delete_raid_extent().

Check if the extent in question is on a block-group that has a profile
which is used by RAID stripe-tree before attempting to delete a stripe
extent. Return early if it doesn't, otherwise we're doing a unnecessary
search.

Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2025-01-13 20:31:43 +01:00 committed by David Sterba
parent c221a9a29d
commit 9257d8632a
1 changed files with 14 additions and 1 deletions
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15
fs/btrfs/raid-stripe-tree.c
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@ -59,9 +59,22 @@ int btrfs_delete_raid_extent(struct btrfs_trans_handle *trans, u64 start, u64 le
int slot;
int ret;
if (!stripe_root)
if (!btrfs_fs_incompat(fs_info, RAID_STRIPE_TREE) || !stripe_root)
return 0;
if (!btrfs_is_testing(fs_info)) {
struct btrfs_chunk_map *map;
bool use_rst;
map = btrfs_find_chunk_map(fs_info, start, length);
if (!map)
return -EINVAL;
use_rst = btrfs_need_stripe_tree_update(fs_info, map->type);
btrfs_free_chunk_map(map);
if (!use_rst)
return 0;
}
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;