[PATCH] NFS: Make searching and waiting on busy writeback requests more efficient.

 Basically copies the VFS's method for tracking writebacks and applies
 it to the struct nfs_page.

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

1 files changed, 0 insertions, 3 deletions

diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index a0042fb58634..6f866b8aa2d5 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -173,7 +173,6 @@ static int nfs_readpage_async(struct nfs_open_context *ctx, struct inode *inode,
         if (len < PAGE_CACHE_SIZE)
                 memclear_highpage_flush(page, len, PAGE_CACHE_SIZE - len);
 
-        nfs_lock_request(new);
         nfs_list_add_request(new, &one_request);
         nfs_pagein_one(&one_request, inode);
         return 0;
@@ -185,7 +184,6 @@ static void nfs_readpage_release(struct nfs_page *req)
 
         nfs_clear_request(req);
         nfs_release_request(req);
-        nfs_unlock_request(req);
 
         dprintk("NFS: read done (%s/%Ld %d@%Ld)\n",
                         req->wb_context->dentry->d_inode->i_sb->s_id,
@@ -553,7 +551,6 @@ readpage_async_filler(void *data, struct page *page)
         }
         if (len < PAGE_CACHE_SIZE)
                 memclear_highpage_flush(page, len, PAGE_CACHE_SIZE - len);
-        nfs_lock_request(new);
         nfs_list_add_request(new, desc->head);
         return 0;
 }