From: Andy Adamson Date: Fri, 27 Apr 2012 21:53:44 +0000 (-0400) Subject: NFSv4.1 set RPC_TASK_SOFTCONN for filelayout DS RPC calls X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9f0ec176b3071e0472582c07ae1e68055b28184d;p=openwrt%2Fstaging%2Fblogic.git NFSv4.1 set RPC_TASK_SOFTCONN for filelayout DS RPC calls RPC_TASK_SOFTCONN returns connection errors to the caller which allows the pNFS file layout to quickly try the MDS or perhaps another DS. Signed-off-by: Andy Adamson Signed-off-by: Trond Myklebust --- diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index bf64095f850d..6ed96c7ffcb2 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -299,7 +299,7 @@ extern void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, const struct nfs_pgio_completion_ops *compl_ops); extern int nfs_initiate_read(struct rpc_clnt *clnt, struct nfs_read_data *data, - const struct rpc_call_ops *call_ops); + const struct rpc_call_ops *call_ops, int flags); extern void nfs_read_prepare(struct rpc_task *task, void *calldata); extern int nfs_generic_pagein(struct nfs_pageio_descriptor *desc, struct nfs_pgio_header *hdr); @@ -326,13 +326,13 @@ extern void nfs_commit_free(struct nfs_commit_data *p); extern int nfs_initiate_write(struct rpc_clnt *clnt, struct nfs_write_data *data, const struct rpc_call_ops *call_ops, - int how); + int how, int flags); extern void nfs_write_prepare(struct rpc_task *task, void *calldata); extern void nfs_commit_prepare(struct rpc_task *task, void *calldata); extern int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data, const struct rpc_call_ops *call_ops, - int how); + int how, int flags); extern void nfs_init_commit(struct nfs_commit_data *data, struct list_head *head, struct pnfs_layout_segment *lseg, diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c index b9edc8870561..0db8c0783039 100644 --- a/fs/nfs/nfs4filelayout.c +++ b/fs/nfs/nfs4filelayout.c @@ -401,7 +401,7 @@ filelayout_read_pagelist(struct nfs_read_data *data) /* Perform an asynchronous read to ds */ status = nfs_initiate_read(ds->ds_clp->cl_rpcclient, data, - &filelayout_read_call_ops); + &filelayout_read_call_ops, RPC_TASK_SOFTCONN); BUG_ON(status != 0); return PNFS_ATTEMPTED; } @@ -441,7 +441,8 @@ filelayout_write_pagelist(struct nfs_write_data *data, int sync) /* Perform an asynchronous write */ status = nfs_initiate_write(ds->ds_clp->cl_rpcclient, data, - &filelayout_write_call_ops, sync); + &filelayout_write_call_ops, sync, + RPC_TASK_SOFTCONN); BUG_ON(status != 0); return PNFS_ATTEMPTED; } @@ -966,7 +967,8 @@ static int filelayout_initiate_commit(struct nfs_commit_data *data, int how) if (fh) data->args.fh = fh; return nfs_initiate_commit(ds->ds_clp->cl_rpcclient, data, - &filelayout_commit_call_ops, how); + &filelayout_commit_call_ops, how, + RPC_TASK_SOFTCONN); } static int @@ -1120,7 +1122,7 @@ filelayout_commit_pagelist(struct inode *inode, struct list_head *mds_pages, if (!data->lseg) { nfs_init_commit(data, mds_pages, NULL, cinfo); nfs_initiate_commit(NFS_CLIENT(inode), data, - data->mds_ops, how); + data->mds_ops, how, 0); } else { struct pnfs_commit_bucket *buckets; diff --git a/fs/nfs/read.c b/fs/nfs/read.c index f23cf255bd39..2cfdd7785411 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -206,7 +206,7 @@ out: int nfs_initiate_read(struct rpc_clnt *clnt, struct nfs_read_data *data, - const struct rpc_call_ops *call_ops) + const struct rpc_call_ops *call_ops, int flags) { struct inode *inode = data->header->inode; int swap_flags = IS_SWAPFILE(inode) ? NFS_RPC_SWAPFLAGS : 0; @@ -223,7 +223,7 @@ int nfs_initiate_read(struct rpc_clnt *clnt, .callback_ops = call_ops, .callback_data = data, .workqueue = nfsiod_workqueue, - .flags = RPC_TASK_ASYNC | swap_flags, + .flags = RPC_TASK_ASYNC | swap_flags | flags, }; /* Set up the initial task struct. */ @@ -272,7 +272,7 @@ static int nfs_do_read(struct nfs_read_data *data, { struct inode *inode = data->header->inode; - return nfs_initiate_read(NFS_CLIENT(inode), data, call_ops); + return nfs_initiate_read(NFS_CLIENT(inode), data, call_ops, 0); } static int diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 8ffd7d5ed58b..e6fe3d69d14c 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -916,7 +916,7 @@ static int flush_task_priority(int how) int nfs_initiate_write(struct rpc_clnt *clnt, struct nfs_write_data *data, const struct rpc_call_ops *call_ops, - int how) + int how, int flags) { struct inode *inode = data->header->inode; int priority = flush_task_priority(how); @@ -933,7 +933,7 @@ int nfs_initiate_write(struct rpc_clnt *clnt, .callback_ops = call_ops, .callback_data = data, .workqueue = nfsiod_workqueue, - .flags = RPC_TASK_ASYNC, + .flags = RPC_TASK_ASYNC | flags, .priority = priority, }; int ret = 0; @@ -1009,7 +1009,7 @@ static int nfs_do_write(struct nfs_write_data *data, { struct inode *inode = data->header->inode; - return nfs_initiate_write(NFS_CLIENT(inode), data, call_ops, how); + return nfs_initiate_write(NFS_CLIENT(inode), data, call_ops, how, 0); } static int nfs_do_multiple_writes(struct list_head *head, @@ -1394,7 +1394,7 @@ EXPORT_SYMBOL_GPL(nfs_commitdata_release); int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data, const struct rpc_call_ops *call_ops, - int how) + int how, int flags) { struct rpc_task *task; int priority = flush_task_priority(how); @@ -1410,7 +1410,7 @@ int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data, .callback_ops = call_ops, .callback_data = data, .workqueue = nfsiod_workqueue, - .flags = RPC_TASK_ASYNC, + .flags = RPC_TASK_ASYNC | flags, .priority = priority, }; /* Set up the initial task struct. */ @@ -1499,7 +1499,8 @@ nfs_commit_list(struct inode *inode, struct list_head *head, int how, /* Set up the argument struct */ nfs_init_commit(data, head, NULL, cinfo); atomic_inc(&cinfo->mds->rpcs_out); - return nfs_initiate_commit(NFS_CLIENT(inode), data, data->mds_ops, how); + return nfs_initiate_commit(NFS_CLIENT(inode), data, data->mds_ops, + how, 0); out_bad: nfs_retry_commit(head, NULL, cinfo); cinfo->completion_ops->error_cleanup(NFS_I(inode));