At btrfs_mark_buffer_dirty(), having a transaction id mismatch is never
expected to happen and it usually means there's a bug or some memory
corruption due to a bitflip for example. So mark the condition as unlikely
to optimize code generation as well as to make it obvious for human
readers that it is a very unexpected condition.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
/* This is an active transaction (its state < TRANS_STATE_UNBLOCKED). */
ASSERT(trans->transid == fs_info->generation);
btrfs_assert_tree_write_locked(buf);
- if (transid != fs_info->generation) {
+ if (unlikely(transid != fs_info->generation)) {
btrfs_abort_transaction(trans, -EUCLEAN);
btrfs_crit(fs_info,
"dirty buffer transid mismatch, logical %llu found transid %llu running transid %llu",