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jbd2: remove outdated comment

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

Reviewed-by: Zheng Liu <[email protected]>
Signed-off-by: Jan Kara <[email protected]>
Signed-off-by: "Theodore Ts'o" <[email protected]>
This commit is contained in:
Jan Kara 2013-06-04 12:10:11 -04:00 • committed by Theodore Ts'o
commit 2f387f849b
1 changed files with 0 additions and 10 deletions
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10
fs/jbd2/transaction.c
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@ -283,16 +283,6 @@ repeat:
* 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);