Commit 2f387f84 authored by Jan Kara's avatar Jan Kara Committed by Theodore Ts'o
Browse files

jbd2: remove outdated comment 



The comment about credit estimates isn't true anymore. We do what the
comment describes now.

Reviewed-by: default avatarZheng Liu <wenqing.lz@taobao.com>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent b34090e5

fs/jbd2/transaction.c

+0 −10
Original line number Diff line number Diff line
@@ -283,16 +283,6 @@ static int start_this_handle(journal_t *journal, handle_t *handle, 
	 * reduce the free space arbitrarily.  Be careful to account for

	 * those buffers when checkpointing.

	 */



	/*

	 * @@@ AKPM: This seems rather over-defensive.  We're giving commit

	 * a _lot_ of headroom: 1/4 of the journal plus the size of

	 * the committing transaction.  Really, we only need to give it

	 * committing_transaction->t_outstanding_credits plus "enough" for

	 * the log control blocks.

	 * Also, this test is inconsistent with the matching one in

	 * jbd2_journal_extend().

	 */

	if (__jbd2_log_space_left(journal) < jbd_space_needed(journal)) {

		jbd_debug(2, "Handle %p waiting for checkpoint...\n", handle);

		atomic_sub(nblocks, &transaction->t_outstanding_credits);