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| author |   Josef Bacik <josef@toxicpanda.com> | 2018-12-03 10:20:36 -0500 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2018-12-17 14:51:47 +0100 |
| commit | 64403612b73a94bc7b02cf8ca126e3b8ced6e921 (patch) | |
| tree | d087aac04cf78fa73239a790a211e1419eeba58f /fs/btrfs/transaction.c | |
| parent | btrfs: add new flushing states for the delayed refs rsv (diff) | |
| download | linux-dev-64403612b73a94bc7b02cf8ca126e3b8ced6e921.tar.xz linux-dev-64403612b73a94bc7b02cf8ca126e3b8ced6e921.zip | |
btrfs: rework btrfs_check_space_for_delayed_refs
Now with the delayed_refs_rsv we can now know exactly how much pending
delayed refs space we need. This means we can drastically simplify
btrfs_check_space_for_delayed_refs by simply checking how much space we
have reserved for the global rsv (which acts as a spill over buffer) and
the delayed refs rsv. If our total size is beyond that amount then we
know it's time to commit the transaction and stop any more delayed refs
from being generated.
With the introduction of dealyed_refs_rsv infrastructure, namely
btrfs_update_delayed_refs_rsv we now know exactly how much pending
delayed refs space is required.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index e18eb75e6fa3..8154b64cc4de 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -789,7 +789,7 @@ static int should_end_transaction(struct btrfs_trans_handle *trans) { struct btrfs_fs_info *fs_info = trans->fs_info; - if (btrfs_check_space_for_delayed_refs(trans)) + if (btrfs_check_space_for_delayed_refs(fs_info)) return 1; return !!btrfs_block_rsv_check(&fs_info->global_block_rsv, 5); |