nfs: Convert to separately allocated bdi

Allocate struct backing_dev_info separately instead of embedding it
inside the superblock. This unifies handling of bdi among users.

CC: Anna Schumaker <anna.schumaker@netapp.com>
CC: linux-nfs@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

1 files changed, 0 insertions, 10 deletions

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 390ada8741bc..04d15a0045e3 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -761,9 +761,6 @@ static void nfs_server_set_fsinfo(struct nfs_server *server,
                 server->rsize = NFS_MAX_FILE_IO_SIZE;
         server->rpages = (server->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT;
 
-        server->backing_dev_info.name = "nfs";
-        server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD;
-
         if (server->wsize > max_rpc_payload)
                 server->wsize = max_rpc_payload;
         if (server->wsize > NFS_MAX_FILE_IO_SIZE)
@@ -917,12 +914,6 @@ struct nfs_server *nfs_alloc_server(void)
                 return NULL;
         }
 
-        if (bdi_init(&server->backing_dev_info)) {
-                nfs_free_iostats(server->io_stats);
-                kfree(server);
-                return NULL;
-        }
-
         ida_init(&server->openowner_id);
         ida_init(&server->lockowner_id);
         pnfs_init_server(server);
@@ -953,7 +944,6 @@ void nfs_free_server(struct nfs_server *server)
         ida_destroy(&server->lockowner_id);
         ida_destroy(&server->openowner_id);
         nfs_free_iostats(server->io_stats);
-        bdi_destroy(&server->backing_dev_info);
         kfree(server);
         nfs_release_automount_timer();
         dprintk("<-- nfs_free_server()\n");