[PATCH] xfs: fix non-quota build breakage

[Dave Chinner <david@fromorbit.com>]

From: Dave Chinner <dchinner@redhat.com>

Oops, I forgot that you can config out quotas because nobody
ever does that when they build XFS anymore.

Fixes: 018dc1667913 ("xfs: use direct calls for dquot IO completion")

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/xfs_dquot.h | 1 -
 fs/xfs/xfs_quota.h | 9 +++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_dquot.h b/fs/xfs/xfs_dquot.h
index fe9cc3e08ed6..71e36c85e20b 100644
--- a/fs/xfs/xfs_dquot.h
+++ b/fs/xfs/xfs_dquot.h
@@ -174,7 +174,6 @@ void		xfs_qm_dqput(struct xfs_dquot *dqp);
 void		xfs_dqlock2(struct xfs_dquot *, struct xfs_dquot *);
 
 void		xfs_dquot_set_prealloc_limits(struct xfs_dquot *);
-void		xfs_dquot_done(struct xfs_buf *);
 
 static inline struct xfs_dquot *xfs_qm_dqhold(struct xfs_dquot *dqp)
 {
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index aa8fc1f55fbd..c92ae5e02ce8 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -13,6 +13,7 @@
  */
 
 struct xfs_trans;
+struct xfs_buf;
 
 /*
  * This check is done typically without holding the inode lock;
@@ -107,6 +108,8 @@ extern void xfs_qm_mount_quotas(struct xfs_mount *);
 extern void xfs_qm_unmount(struct xfs_mount *);
 extern void xfs_qm_unmount_quotas(struct xfs_mount *);
 
+void		xfs_dquot_done(struct xfs_buf *);
+
 #else
 static inline int
 xfs_qm_vop_dqalloc(struct xfs_inode *ip, kuid_t kuid, kgid_t kgid,
@@ -148,6 +151,12 @@ static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
 #define xfs_qm_mount_quotas(mp)
 #define xfs_qm_unmount(mp)
 #define xfs_qm_unmount_quotas(mp)
+
+static inline void xfs_dquot_done(struct xfs_buf *bp)
+{
+	return;
+}
+
 #endif /* CONFIG_XFS_QUOTA */
 
 #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \