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authorTrond Myklebust <trond.myklebust@primarydata.com>2015-03-25 14:14:42 -0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-03-27 12:39:38 -0400
commit5bb89b4702e22981445ae01af733a57d1cae2018 (patch)
tree4c00a7c47fa2dab958f43a395e71067fe6ee6538 /fs/nfs/pnfs_nfs.c
parent7140171ea9be4143736c35acf6f31b6feb195ca0 (diff)
downloadop-kernel-dev-5bb89b4702e22981445ae01af733a57d1cae2018.zip
op-kernel-dev-5bb89b4702e22981445ae01af733a57d1cae2018.tar.gz
NFSv4.1/pnfs: Separate out metadata and data consistency for pNFS
The LAYOUTCOMMIT operation means different things to different layout types. For blocks and objects, it is both a data and metadata consistency operation. For files and flexfiles, it is only a metadata consistency operation. This patch separates out the 2 cases, allowing the files/flexfiles layout drivers to optimise away the data consistency calls to layoutcommit. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/pnfs_nfs.c')
-rw-r--r--fs/nfs/pnfs_nfs.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c
index 54e36b3..64d2a59 100644
--- a/fs/nfs/pnfs_nfs.c
+++ b/fs/nfs/pnfs_nfs.c
@@ -868,3 +868,13 @@ pnfs_layout_mark_request_commit(struct nfs_page *req,
nfs_request_add_commit_list(req, list, cinfo);
}
EXPORT_SYMBOL_GPL(pnfs_layout_mark_request_commit);
+
+int
+pnfs_nfs_generic_sync(struct inode *inode, bool datasync)
+{
+ if (datasync)
+ return 0;
+ return pnfs_layoutcommit_inode(inode, true);
+}
+EXPORT_SYMBOL_GPL(pnfs_nfs_generic_sync);
+
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