diff options
| author | Jan Kara <jack@suse.cz> | 2010-08-18 15:56:56 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-09-10 12:35:39 +0200 |
| commit | f73bee49855fe968e87af18e44f2d17e1e675e74 (patch) | |
| tree | b8c4bc3ac8fcc6c2ef066bf641e70b7522392c12 | |
| parent | jbd: replace barriers with explicit flush / FUA usage (diff) | |
| download | linux-f73bee49855fe968e87af18e44f2d17e1e675e74.tar.xz linux-f73bee49855fe968e87af18e44f2d17e1e675e74.zip | |
jbd2: Modify ASYNC_COMMIT code to not rely on queue draining on barrier
Currently JBD2 relies blkdev_issue_flush() draining the queue when ASYNC_COMMIT
feature is set. This property is going away so make JBD2 wait for buffers it
needs on its own before submitting the cache flush.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
| -rw-r--r-- | fs/jbd2/commit.c | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index 7c068c189d80..d6aeb1f6cfe0 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -701,6 +701,16 @@ start_journal_io: } } + err = journal_finish_inode_data_buffers(journal, commit_transaction); + if (err) { + printk(KERN_WARNING + "JBD2: Detected IO errors while flushing file data " + "on %s\n", journal->j_devname); + if (journal->j_flags & JBD2_ABORT_ON_SYNCDATA_ERR) + jbd2_journal_abort(journal, err); + err = 0; + } + /* * If the journal is not located on the file system device, * then we must flush the file system device before we issue @@ -719,19 +729,6 @@ start_journal_io: &cbh, crc32_sum); if (err) __jbd2_journal_abort_hard(journal); - if (journal->j_flags & JBD2_BARRIER) - blkdev_issue_flush(journal->j_dev, GFP_KERNEL, NULL, - BLKDEV_IFL_WAIT); - } - - err = journal_finish_inode_data_buffers(journal, commit_transaction); - if (err) { - printk(KERN_WARNING - "JBD2: Detected IO errors while flushing file data " - "on %s\n", journal->j_devname); - if (journal->j_flags & JBD2_ABORT_ON_SYNCDATA_ERR) - jbd2_journal_abort(journal, err); - err = 0; } /* Lo and behold: we have just managed to send a transaction to @@ -845,6 +842,12 @@ wait_for_iobuf: } if (!err && !is_journal_aborted(journal)) err = journal_wait_on_commit_record(journal, cbh); + if (JBD2_HAS_INCOMPAT_FEATURE(journal, + JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT) && + journal->j_flags & JBD2_BARRIER) { + blkdev_issue_flush(journal->j_dev, GFP_KERNEL, NULL, + BLKDEV_IFL_WAIT); + } if (err) jbd2_journal_abort(journal, err); |