NFS: Use an atomic_long_t to count the number of requests
Rather than forcing us to take the inode->i_lock just in order to bump
the number.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index d7df5e6..606dd38 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -1089,7 +1089,7 @@ bool nfs4_delegation_flush_on_close(const struct inode *inode)
delegation = rcu_dereference(nfsi->delegation);
if (delegation == NULL || !(delegation->type & FMODE_WRITE))
goto out;
- if (nfsi->nrequests < delegation->pagemod_limit)
+ if (atomic_long_read(&nfsi->nrequests) < delegation->pagemod_limit)
ret = false;
out:
rcu_read_unlock();