Commit 1b33809e authored Apr 21, 2014 by Christoph Hellwig Committed by Trond Myklebust May 28, 2014

nfs: commit layouts in fdatasync

"fdatasync() is similar to fsync(), but does not flush modified metadata
unless that metadata is needed in order to allow a subsequent data
retrieval to be correctly handled."

We absolutely need to commit the layouts to be able to retrieve the data
in case either the client, the server or the storage subsystem go down.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

parent 7a9a7b77

fs/nfs/nfs4file.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -100,8 +100,7 @@ nfs4_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
		break;
		mutex_lock(&inode->i_mutex);
		ret = nfs_file_fsync_commit(file, start, end, datasync);
		if (!ret && !datasync)
		/* application has asked for meta-data sync */
		if (!ret)
		ret = pnfs_layoutcommit_inode(inode, true);
		mutex_unlock(&inode->i_mutex);
		/*

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