NFS: Replace NFS_I(inode)->req_lock with inode->i_lock
There is no justification for keeping a special spinlock for the exclusive
use of the NFS writeback code.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 8d2642f..f56dae5 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -126,12 +126,13 @@
*/
void nfs_clear_page_tag_locked(struct nfs_page *req)
{
- struct nfs_inode *nfsi = NFS_I(req->wb_context->path.dentry->d_inode);
+ struct inode *inode = req->wb_context->path.dentry->d_inode;
+ struct nfs_inode *nfsi = NFS_I(inode);
if (req->wb_page != NULL) {
- spin_lock(&nfsi->req_lock);
+ spin_lock(&inode->i_lock);
radix_tree_tag_clear(&nfsi->nfs_page_tree, req->wb_index, NFS_PAGE_TAG_LOCKED);
- spin_unlock(&nfsi->req_lock);
+ spin_unlock(&inode->i_lock);
}
nfs_unlock_request(req);
}
@@ -390,7 +391,7 @@
* If the number of requests is set to 0, the entire address_space
* starting at index idx_start, is scanned.
* The requests are *not* checked to ensure that they form a contiguous set.
- * You must be holding the inode's req_lock when calling this function
+ * You must be holding the inode's i_lock when calling this function
*/
int nfs_scan_list(struct nfs_inode *nfsi,
struct list_head *dst, pgoff_t idx_start,
@@ -430,7 +431,7 @@
}
}
/* for latency reduction */
- cond_resched_lock(&nfsi->req_lock);
+ cond_resched_lock(&nfsi->vfs_inode.i_lock);
}
out:
return res;