diff options
Diffstat (limited to 'fs/nfs/read.c')
-rw-r--r-- | fs/nfs/read.c | 46 |
1 files changed, 20 insertions, 26 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 75088f58183b..d2f53ddd8260 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -67,7 +67,7 @@ void nfs_readdata_free(struct nfs_read_data *p) mempool_free(p, nfs_rdata_mempool); } -static void nfs_readdata_release(struct nfs_read_data *rdata) +void nfs_readdata_release(struct nfs_read_data *rdata) { put_lseg(rdata->lseg); put_nfs_open_context(rdata->args.context); @@ -120,6 +120,12 @@ void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio, } EXPORT_SYMBOL_GPL(nfs_pageio_init_read_mds); +void nfs_pageio_reset_read_mds(struct nfs_pageio_descriptor *pgio) +{ + pgio->pg_ops = &nfs_pageio_read_ops; + pgio->pg_bsize = NFS_SERVER(pgio->pg_inode)->rsize; +} + static void nfs_pageio_init_read(struct nfs_pageio_descriptor *pgio, struct inode *inode) { @@ -235,26 +241,16 @@ static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data, } static int nfs_do_read(struct nfs_read_data *data, - const struct rpc_call_ops *call_ops, - struct pnfs_layout_segment *lseg) + const struct rpc_call_ops *call_ops) { struct inode *inode = data->args.context->path.dentry->d_inode; - if (lseg) { - data->lseg = get_lseg(lseg); - if (pnfs_try_to_read_data(data, call_ops) == PNFS_ATTEMPTED) - return 0; - put_lseg(data->lseg); - data->lseg = NULL; - } - return nfs_initiate_read(data, NFS_CLIENT(inode), call_ops); } static int nfs_do_multiple_reads(struct list_head *head, - const struct rpc_call_ops *call_ops, - struct pnfs_layout_segment *lseg) + const struct rpc_call_ops *call_ops) { struct nfs_read_data *data; int ret = 0; @@ -265,7 +261,7 @@ nfs_do_multiple_reads(struct list_head *head, data = list_entry(head->next, struct nfs_read_data, list); list_del_init(&data->list); - ret2 = nfs_do_read(data, call_ops, lseg); + ret2 = nfs_do_read(data, call_ops); if (ret == 0) ret = ret2; } @@ -373,25 +369,23 @@ out: return ret; } -int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc) +int nfs_generic_pagein(struct nfs_pageio_descriptor *desc, struct list_head *head) +{ + if (desc->pg_bsize < PAGE_CACHE_SIZE) + return nfs_pagein_multi(desc, head); + return nfs_pagein_one(desc, head); +} + +static int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc) { LIST_HEAD(head); int ret; - if (desc->pg_bsize < PAGE_CACHE_SIZE) - ret = nfs_pagein_multi(desc, &head); - else - ret = nfs_pagein_one(desc, &head); - + ret = nfs_generic_pagein(desc, &head); if (ret == 0) - ret = nfs_do_multiple_reads(&head, desc->pg_rpc_callops, - desc->pg_lseg); - put_lseg(desc->pg_lseg); - desc->pg_lseg = NULL; + ret = nfs_do_multiple_reads(&head, desc->pg_rpc_callops); return ret; } -EXPORT_SYMBOL_GPL(nfs_generic_pg_readpages); - static const struct nfs_pageio_ops nfs_pageio_read_ops = { .pg_test = nfs_generic_pg_test, |