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authorMark Fasheh <mark.fasheh@oracle.com>2007-10-18 15:23:46 -0700
committerMark Fasheh <mark.fasheh@oracle.com>2008-01-25 14:45:57 -0800
commitc934a92d05b549dd2f25db72c5fc3cb9dcf1b611 (patch)
tree57150c87d1d465db28fceaa14c9d5b220c7a3954 /fs/ocfs2/mmap.c
parentf1f540688eae66c274ff1c1133b5d9c687b28f58 (diff)
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 <mark.fasheh@oracle.com>
Diffstat (limited to 'fs/ocfs2/mmap.c')
-rw-r--r--fs/ocfs2/mmap.c9
1 files changed, 0 insertions, 9 deletions
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);