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jbd2: don't unplug after writing revoke records 

During commit process, keep the block device plugged after we are done
writing the revoke records, until we are finished writing the rest of
the commit records in the journal.  This will allow most of the
journal blocks to be written in a single I/O operation, instead of
separating the the revoke blocks from the rest of the journal blocks.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2014-03-08 18:13:52 -05:00
parent 10542c229a
commit df3c1e9a05
1 changed files with 0 additions and 2 deletions
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2
fs/jbd2/commit.c
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@ -555,7 +555,6 @@ void jbd2_journal_commit_transaction(journal_t *journal)
blk_start_plug(&plug);
jbd2_journal_write_revoke_records(journal, commit_transaction,
&log_bufs, WRITE_SYNC);
blk_finish_plug(&plug);
jbd_debug(3, "JBD2: commit phase 2b\n");
@ -582,7 +581,6 @@ void jbd2_journal_commit_transaction(journal_t *journal)
err = 0;
bufs = 0;
descriptor = NULL;
blk_start_plug(&plug);
while (commit_transaction->t_buffers) {
/* Find the next buffer to be journaled... */