Jan Kara
2009-Sep-02 13:59 UTC
[Ocfs2-devel] [PATCH 05/16] ocfs2: Use __generic_file_aio_write instead of generic_file_aio_write_nolock
Use the new helper. We have to submit data pages ourselves in case of O_SYNC
write because __generic_file_aio_write does not do it for us. OCFS2 developpers
might think about moving the sync out of i_mutex which seems to be easily
possible but that's out of scope of this patch.
CC: ocfs2-devel at oss.oracle.com
Acked-by: Joel Becker <joel.becker at oracle.com>
Signed-off-by: Jan Kara <jack at suse.cz>
---
fs/ocfs2/file.c | 22 ++++++++++++----------
1 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index aa501d3..6002273 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1871,8 +1871,7 @@ relock:
goto out_dio;
}
} else {
- written = generic_file_aio_write_nolock(iocb, iov, nr_segs,
- *ppos);
+ written = __generic_file_aio_write(iocb, iov, nr_segs, ppos);
}
out_dio:
@@ -1880,18 +1879,21 @@ out_dio:
BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT));
if ((file->f_flags & O_SYNC && !direct_io) || IS_SYNC(inode)) {
- /*
- * The generic write paths have handled getting data
- * to disk, but since we don't make use of the dirty
- * inode list, a manual journal commit is necessary
- * here.
- */
- if (old_size != i_size_read(inode) ||
- old_clusters != OCFS2_I(inode)->ip_clusters) {
+ ret = filemap_fdatawrite_range(file->f_mapping, pos,
+ pos + count - 1);
+ if (ret < 0)
+ written = ret;
+
+ if (!ret && (old_size != i_size_read(inode) ||
+ old_clusters != OCFS2_I(inode)->ip_clusters)) {
ret = jbd2_journal_force_commit(osb->journal->j_journal);
if (ret < 0)
written = ret;
}
+
+ if (!ret)
+ ret = filemap_fdatawait_range(file->f_mapping, pos,
+ pos + count - 1);
}
/*
--
1.6.0.2