From c934a92d05b549dd2f25db72c5fc3cb9dcf1b611 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Thu, 18 Oct 2007 15:23:46 -0700 Subject: ocfs2: Remove data locks The meta lock now covers both meta data and data, so this just removes the now-redundant data lock. Combining locks saves us a round of lock mastery per inode and one less lock to ping between nodes during read/write. We don't lose much - since meta locks were always held before a data lock (and at the same level) ordered writeout mode (the default) ensured that flushing for the meta data lock also pushed out data anyways. Signed-off-by: Mark Fasheh --- fs/ocfs2/mmap.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'fs/ocfs2/mmap.c') diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c index 98756156d29..a7f0ccc6fdd 100644 --- a/fs/ocfs2/mmap.c +++ b/fs/ocfs2/mmap.c @@ -181,17 +181,8 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct page *page) */ down_write(&OCFS2_I(inode)->ip_alloc_sem); - ret = ocfs2_data_lock(inode, 1); - if (ret < 0) { - mlog_errno(ret); - goto out_meta_unlock; - } - ret = __ocfs2_page_mkwrite(inode, di_bh, page); - ocfs2_data_unlock(inode, 1); - -out_meta_unlock: up_write(&OCFS2_I(inode)->ip_alloc_sem); brelse(di_bh); -- cgit v1.2.3