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authorTrond Myklebust <Trond.Myklebust@netapp.com>2011-11-10 19:30:37 (GMT)
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-11-10 19:50:26 (GMT)
commit62e4a76987eab2b7fa952546614bc83e5bfc9d3e (patch)
tree433ab5bde90a8d2dbeeabc29a6aa0c25deae5732 /fs/nfs/pnfs.c
parent2aa13531bbbc6582874bedfcd853e1058b0fb4f9 (diff)
downloadlinux-62e4a76987eab2b7fa952546614bc83e5bfc9d3e.tar.xz
NFS: Revert pnfs ugliness from the generic NFS read code path
pNFS-specific code belongs in the pnfs layer. It should not be hijacking generic NFS read or write code paths. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.c')
-rw-r--r--fs/nfs/pnfs.c26
1 files changed, 21 insertions, 5 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index a2478bc..e40a3ca 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1259,6 +1259,25 @@ pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_writepages);
+static void pnfs_ld_handle_read_error(struct nfs_read_data *data)
+{
+ struct nfs_pageio_descriptor pgio;
+
+ put_lseg(data->lseg);
+ data->lseg = NULL;
+ dprintk("pnfs write error = %d\n", data->pnfs_error);
+
+ nfs_pageio_init_read_mds(&pgio, data->inode);
+
+ while (!list_empty(&data->pages)) {
+ struct nfs_page *req = nfs_list_entry(data->pages.next);
+
+ nfs_list_remove_request(req);
+ nfs_pageio_add_request(&pgio, req);
+ }
+ nfs_pageio_complete(&pgio);
+}
+
/*
* Called by non rpc-based layout drivers
*/
@@ -1267,11 +1286,8 @@ void pnfs_ld_read_done(struct nfs_read_data *data)
if (likely(!data->pnfs_error)) {
__nfs4_read_done_cb(data);
data->mds_ops->rpc_call_done(&data->task, data);
- } else {
- put_lseg(data->lseg);
- data->lseg = NULL;
- dprintk("pnfs write error = %d\n", data->pnfs_error);
- }
+ } else
+ pnfs_ld_handle_read_error(data);
data->mds_ops->rpc_release(data);
}
EXPORT_SYMBOL_GPL(pnfs_ld_read_done);