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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-12 17:42:02 (GMT) |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-12 17:42:02 (GMT) |
commit | 6e4efd568574221840ee8dd86f176dc977c1330c (patch) | |
tree | b43afc1ae5400bbadbc122d2bfb5a69b3a26e7f8 /fs/nfs/write.c | |
parent | 87ed5eb44ad9338b1617a0e78dea81d681325298 (diff) | |
download | linux-fsl-qoriq-6e4efd568574221840ee8dd86f176dc977c1330c.tar.xz |
NFS: Clean up nfs_read_rpcsetup and nfs_write_rpcsetup
Split them up into two parts: one which sets up the struct nfs_read/write_data,
the other which sets up the actual RPC call or pNFS call.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r-- | fs/nfs/write.c | 41 |
1 files changed, 26 insertions, 15 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 1af4d82..0aeb09b 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -845,11 +845,9 @@ EXPORT_SYMBOL_GPL(nfs_initiate_write); /* * Set up the argument/result storage required for the RPC call. */ -static int nfs_write_rpcsetup(struct nfs_page *req, +static void nfs_write_rpcsetup(struct nfs_page *req, struct nfs_write_data *data, - const struct rpc_call_ops *call_ops, unsigned int count, unsigned int offset, - struct pnfs_layout_segment *lseg, int how) { struct inode *inode = req->wb_context->path.dentry->d_inode; @@ -860,7 +858,6 @@ static int nfs_write_rpcsetup(struct nfs_page *req, data->req = req; data->inode = inode = req->wb_context->path.dentry->d_inode; data->cred = req->wb_context->cred; - data->lseg = get_lseg(lseg); data->args.fh = NFS_FH(inode); data->args.offset = req_offset(req) + offset; @@ -886,10 +883,22 @@ static int nfs_write_rpcsetup(struct nfs_page *req, data->res.count = count; data->res.verf = &data->verf; nfs_fattr_init(&data->fattr); +} - if (data->lseg && - (pnfs_try_to_write_data(data, call_ops, how) == PNFS_ATTEMPTED)) - return 0; +static int nfs_do_write(struct nfs_write_data *data, + const struct rpc_call_ops *call_ops, + struct pnfs_layout_segment *lseg, + int how) +{ + struct inode *inode = data->args.context->path.dentry->d_inode; + + if (lseg != NULL) { + data->lseg = get_lseg(lseg); + if (pnfs_try_to_write_data(data, call_ops, how) == PNFS_ATTEMPTED) + return 0; + put_lseg(data->lseg); + data->lseg = NULL; + } return nfs_initiate_write(data, NFS_CLIENT(inode), call_ops, how); } @@ -938,7 +947,7 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) data = nfs_writedata_alloc(1); if (!data) goto out_bad; - list_add(&data->pages, &list); + list_add(&data->list, &list); requests++; nbytes -= len; } while (nbytes != 0); @@ -950,15 +959,16 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) do { int ret2; - data = list_entry(list.next, struct nfs_write_data, pages); - list_del_init(&data->pages); + data = list_entry(list.next, struct nfs_write_data, list); + list_del_init(&data->list); data->pagevec[0] = page; if (nbytes < wsize) wsize = nbytes; - ret2 = nfs_write_rpcsetup(req, data, &nfs_write_partial_ops, - wsize, offset, lseg, desc->pg_ioflags); + nfs_write_rpcsetup(req, data, wsize, offset, desc->pg_ioflags); + ret2 = nfs_do_write(data, &nfs_write_partial_ops, lseg, + desc->pg_ioflags); if (ret == 0) ret = ret2; offset += wsize; @@ -971,8 +981,8 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc) out_bad: while (!list_empty(&list)) { - data = list_entry(list.next, struct nfs_write_data, pages); - list_del(&data->pages); + data = list_entry(list.next, struct nfs_write_data, list); + list_del(&data->list); nfs_writedata_free(data); } nfs_redirty_request(req); @@ -1024,7 +1034,8 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc) desc->pg_ioflags &= ~FLUSH_COND_STABLE; /* Set up the argument struct */ - ret = nfs_write_rpcsetup(req, data, &nfs_write_full_ops, desc->pg_count, 0, lseg, desc->pg_ioflags); + nfs_write_rpcsetup(req, data, desc->pg_count, 0, desc->pg_ioflags); + ret = nfs_do_write(data, &nfs_write_full_ops, lseg, desc->pg_ioflags); out: put_lseg(lseg); /* Cleans any gotten in ->pg_test */ desc->pg_lseg = NULL; |