From: Andy Adamson Date: Tue, 22 May 2012 12:09:27 +0000 (-0400) Subject: NFSv4.1 skip rpc_call_done only on disconnected DS slot_table_waitq tasks X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bd4aeffb5b89070ae93c579f1d5a0758f7123e8b;p=linux-beck.git NFSv4.1 skip rpc_call_done only on disconnected DS slot_table_waitq tasks We reset all I/O on a disconnected data server through the pgio layer indicated by the NFS_IOHDR_REDO flag. Differentiate between on-the-wire tasks returning with an error which must call rpc_call_done and tasks woken from the data server slot_table_waitq waiting for a session slot with a status of zero which call rpc_exit in rpc_prepare and need to skip rpc_call_done. Signed-off-by: Andy Adamson Signed-off-by: Trond Myklebust --- diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index 466284793119..56aa0ec1b169 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -302,7 +302,8 @@ static void filelayout_read_call_done(struct rpc_task *task, void *data) dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status); - if (test_bit(NFS_IOHDR_REDO, &rdata->header->flags)) + if (test_bit(NFS_IOHDR_REDO, &rdata->header->flags) && + task->tk_status == 0) return; /* Note this may cause RPC to be resent */ @@ -399,7 +400,8 @@ static void filelayout_write_call_done(struct rpc_task *task, void *data) { struct nfs_write_data *wdata = data; - if (test_bit(NFS_IOHDR_REDO, &wdata->header->flags)) + if (test_bit(NFS_IOHDR_REDO, &wdata->header->flags) && + task->tk_status == 0) return; /* Note this may cause RPC to be resent */