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NFSv4: Add attribute update barriers to delegreturn and pNFS layoutcommit

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Ensure that other operations that race with delegreturn and layoutcommit
cannot revert the attribute updates that were made on the server.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Tested-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Trond Myklebust 2015-02-26 17:54:58 -05:00
parent a08a8cd375
commit 8f8ba1d739
1 changed files with 1 additions and 0 deletions
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fs/nfs/inode.c
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@ -1555,6 +1555,7 @@ int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fa
int status;
spin_lock(&inode->i_lock);
nfs_fattr_set_barrier(fattr);
status = nfs_post_op_update_inode_force_wcc_locked(inode, fattr);
spin_unlock(&inode->i_lock);
return status;