NFS: Clean up - simplify nfs_lock_request()
We only have two places where we need to grab a reference when trying
to lock the nfs_page. We're better off making that explicit.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Fred Isaman <iisaman@netapp.com>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 8382329..553f7ef 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -260,10 +260,10 @@
req = nfs_page_find_request_locked(page);
if (req == NULL)
break;
- if (nfs_lock_request_dontget(req))
+ if (nfs_lock_request(req))
break;
/* Note: If we hold the page lock, as is the case in nfs_writepage,
- * then the call to nfs_lock_request_dontget() will always
+ * then the call to nfs_lock_request() will always
* succeed provided that someone hasn't already marked the
* request as dirty (in which case we don't care).
*/
@@ -406,7 +406,7 @@
struct nfs_inode *nfsi = NFS_I(inode);
/* Lock the request! */
- nfs_lock_request_dontget(req);
+ nfs_lock_request(req);
spin_lock(&inode->i_lock);
if (!nfsi->npages && nfs_have_delegation(inode, FMODE_WRITE))
@@ -651,6 +651,7 @@
list_for_each_entry_safe(req, tmp, src, wb_list) {
if (!nfs_lock_request(req))
continue;
+ kref_get(&req->wb_kref);
if (cond_resched_lock(cinfo->lock))
list_safe_reset_next(req, tmp, wb_list);
nfs_request_remove_commit_list(req, cinfo);
@@ -741,7 +742,7 @@
|| end < req->wb_offset)
goto out_flushme;
- if (nfs_lock_request_dontget(req))
+ if (nfs_lock_request(req))
break;
/* The request is locked, so wait and then retry */
@@ -1717,7 +1718,7 @@
req = nfs_page_find_request(page);
if (req == NULL)
break;
- if (nfs_lock_request_dontget(req)) {
+ if (nfs_lock_request(req)) {
nfs_clear_request_commit(req);
nfs_inode_remove_request(req);
/*