From: Filipe Manana Date: Wed, 26 Jul 2023 15:56:58 +0000 (+0100) Subject: btrfs: update comment for btrfs_join_transaction_nostart() X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=19288951ffa8c67c9f40d2eed72ebc53071227c0;p=tomoyo%2Ftomoyo-test1.git btrfs: update comment for btrfs_join_transaction_nostart() Update the comment for btrfs_join_transaction_nostart() to be more clear about how it works and how it's different from btrfs_attach_transaction(). Signed-off-by: Filipe Manana Signed-off-by: David Sterba --- diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 6a2a12593183..ab09542f2170 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -799,7 +799,10 @@ struct btrfs_trans_handle *btrfs_join_transaction_spacecache(struct btrfs_root * /* * Similar to regular join but it never starts a transaction when none is - * running or after waiting for the current one to finish. + * running or when there's a running one at a state >= TRANS_STATE_UNBLOCKED. + * This is similar to btrfs_attach_transaction() but it allows the join to + * happen if the transaction commit already started but it's not yet in the + * "doing" phase (the state is < TRANS_STATE_COMMIT_DOING). */ struct btrfs_trans_handle *btrfs_join_transaction_nostart(struct btrfs_root *root) {