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| author | Peng Tao <tao.peng@primarydata.com> | 2014-08-07 06:15:02 +0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-09-10 23:47:00 +0400 |
| commit | 378520b837cf4da769600b83690d8e825f16a611 (patch) | |
| tree | b2561ec480dbfb3e5b481a64aa5ba031d86d04b1 /fs/nfs/write.c | |
| parent | 61beef75cc5bae119e500c9f25daad8596c7cbe4 (diff) | |
| download | linux-378520b837cf4da769600b83690d8e825f16a611.tar.xz | |
nfs41: add a helper function to set layoutcommit after commit
Track lwb in nfs_commit_data so that we can use it to setup
layoutcommit in commit_done callback.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/write.c')
| -rw-r--r-- | fs/nfs/write.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 175d5d073ccf..3c5638f381cd 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1538,6 +1538,18 @@ int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data, } EXPORT_SYMBOL_GPL(nfs_initiate_commit); +static loff_t nfs_get_lwb(struct list_head *head) +{ + loff_t lwb = 0; + struct nfs_page *req; + + list_for_each_entry(req, head, wb_list) + if (lwb < (req_offset(req) + req->wb_bytes)) + lwb = req_offset(req) + req->wb_bytes; + + return lwb; +} + /* * Set up the argument/result storage required for the RPC call. */ @@ -1557,6 +1569,9 @@ void nfs_init_commit(struct nfs_commit_data *data, data->inode = inode; data->cred = first->wb_context->cred; data->lseg = lseg; /* reference transferred */ + /* only set lwb for pnfs commit */ + if (lseg) + data->lwb = nfs_get_lwb(&data->pages); data->mds_ops = &nfs_commit_ops; data->completion_ops = cinfo->completion_ops; data->dreq = cinfo->dreq; |