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| author | Ingo Molnar <mingo@elte.hu> | 2009-01-10 12:04:41 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-10 12:04:41 +0100 |
| commit | b17304245f0db0ac69b795c411407808f3f2796d (patch) | |
| tree | 63ed3915d9295bd08f640bf25c322064ba787fad /fs/jbd/commit.c | |
| parent | 889c92d21db40be0b7d22a59395060237895bb85 (diff) | |
| parent | 9a100a4464917b5ffff3a8ce1c2758088fd9bb32 (diff) | |
| download | kernel-crypto-b17304245f0db0ac69b795c411407808f3f2796d.tar.gz kernel-crypto-b17304245f0db0ac69b795c411407808f3f2796d.tar.xz kernel-crypto-b17304245f0db0ac69b795c411407808f3f2796d.zip | |
Merge branch 'linus' into x86/setup-lzma
Conflicts:
init/do_mounts_rd.c
Diffstat (limited to 'fs/jbd/commit.c')
| -rw-r--r-- | fs/jbd/commit.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index 25719d902c5..3fbffb1ea71 100644 --- a/fs/jbd/commit.c +++ b/fs/jbd/commit.c @@ -306,6 +306,8 @@ void journal_commit_transaction(journal_t *journal) int flags; int err; unsigned long blocknr; + ktime_t start_time; + u64 commit_time; char *tagp = NULL; journal_header_t *header; journal_block_tag_t *tag = NULL; @@ -418,6 +420,7 @@ void journal_commit_transaction(journal_t *journal) commit_transaction->t_state = T_FLUSH; journal->j_committing_transaction = commit_transaction; journal->j_running_transaction = NULL; + start_time = ktime_get(); commit_transaction->t_log_start = journal->j_head; wake_up(&journal->j_wait_transaction_locked); spin_unlock(&journal->j_state_lock); @@ -913,6 +916,18 @@ restart_loop: J_ASSERT(commit_transaction == journal->j_committing_transaction); journal->j_commit_sequence = commit_transaction->t_tid; journal->j_committing_transaction = NULL; + commit_time = ktime_to_ns(ktime_sub(ktime_get(), start_time)); + + /* + * weight the commit time higher than the average time so we don't + * react too strongly to vast changes in commit time + */ + if (likely(journal->j_average_commit_time)) + journal->j_average_commit_time = (commit_time*3 + + journal->j_average_commit_time) / 4; + else + journal->j_average_commit_time = commit_time; + spin_unlock(&journal->j_state_lock); if (commit_transaction->t_checkpoint_list == NULL && |