NFS cleanup: speed up nfs_scan_commit using radix tree tags

Add a tag for requests that are waiting for a COMMIT

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 042434c39b7e..481a42105d69 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -22,6 +22,7 @@
  * Valid flags for the radix tree
  */
 #define NFS_PAGE_TAG_LOCKED     0
+#define NFS_PAGE_TAG_COMMIT     1
 
 /*
  * Valid flags for a dirty buffer
@@ -71,8 +72,8 @@ extern	void nfs_clear_request(struct nfs_page *req);
 extern  void nfs_release_request(struct nfs_page *req);
 
 
-extern  int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *head, struct list_head *dst,
-                          pgoff_t idx_start, unsigned int npages);
+extern  int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst,
+                          pgoff_t idx_start, unsigned int npages, int tag);
 extern  void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
                              struct inode *inode,
                              int (*doio)(struct inode *, struct list_head *, unsigned int, size_t, int),