From c57d1bc5e043dbb5ba82ded07003d71a8033d899 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 6 May 2012 19:34:17 -0400 Subject: [PATCH] NFS: nfs_inode_return_delegation() should always flush dirty data The assumption is that if you are in a situation where you need to return the delegation, then you should probably stop caching the data anyway. Signed-off-by: Trond Myklebust --- fs/nfs/delegation.c | 6 +++++- fs/nfs/delegation.h | 1 + 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index 89af1d269274..a19cb5ad6b13 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -380,6 +380,10 @@ void nfs_inode_return_delegation_noreclaim(struct inode *inode) * nfs_inode_return_delegation - synchronously return a delegation * @inode: inode to process * + * This routine will always flush any dirty data to disk on the + * assumption that if we need to return the delegation, then + * we should stop caching. + * * Returns zero on success, or a negative errno value. */ int nfs_inode_return_delegation(struct inode *inode) @@ -389,10 +393,10 @@ int nfs_inode_return_delegation(struct inode *inode) struct nfs_delegation *delegation; int err = 0; + nfs_wb_all(inode); if (rcu_access_pointer(nfsi->delegation) != NULL) { delegation = nfs_detach_delegation(nfsi, server); if (delegation != NULL) { - nfs_wb_all(inode); err = __nfs_inode_return_delegation(inode, delegation, 1); } } diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h index cd6a7a8dadae..72709c4193fa 100644 --- a/fs/nfs/delegation.h +++ b/fs/nfs/delegation.h @@ -66,6 +66,7 @@ static inline int nfs_have_delegation(struct inode *inode, fmode_t flags) static inline int nfs_inode_return_delegation(struct inode *inode) { + nfs_wb_all(inode); return 0; } #endif -- 2.20.1