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| author |   Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-25 14:14:42 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-03-27 12:39:38 -0400 |
| commit | 5bb89b4702e22981445ae01af733a57d1cae2018 (patch) | |
| tree | 4c00a7c47fa2dab958f43a395e71067fe6ee6538 /fs/nfs/pnfs_nfs.c | |
| parent | NFSv4.1/pnfs: Ensure we send layoutcommit before return-on-close (diff) | |
| download | linux-dev-5bb89b4702e22981445ae01af733a57d1cae2018.tar.xz linux-dev-5bb89b4702e22981445ae01af733a57d1cae2018.zip | |
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.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nfs/pnfs_nfs.c b/fs/nfs/pnfs_nfs.c index 54e36b38fb5f..64d2a5932f7b 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); + |