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[PATCH 2/3] xfs: fix a few compiler warnings with CONFIG_XFS_QUOTA=n

To: xfs@xxxxxxxxxxx
Subject: [PATCH 2/3] xfs: fix a few compiler warnings with CONFIG_XFS_QUOTA=n
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sat, 6 Nov 2010 07:42:56 -0400
In-reply-to: <20101106114226.GA25395@xxxxxxxxxxxxx>
References: <20101106114226.GA25395@xxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
Andi Kleen reported that gcc-4.5 gives lots of warnings for him inside the
XFS code.  It turned out most of them are due to the quota stubs beeing
macros, and gcc now complaining about macros evaluating to 0 that are not
assigned to variables.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Index: xfs/fs/xfs/xfs_quota.h
===================================================================
--- xfs.orig/fs/xfs/xfs_quota.h 2010-11-02 13:59:34.388491017 -0400
+++ xfs/fs/xfs/xfs_quota.h      2010-11-02 14:06:14.308491018 -0400
@@ -346,8 +346,17 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip,
 #define xfs_trans_mod_dquot_byino(tp, ip, fields, delta)
 #define xfs_trans_apply_dquot_deltas(tp)
 #define xfs_trans_unreserve_and_mod_dquots(tp)
-#define xfs_trans_reserve_quota_nblks(tp, ip, nblks, ninos, flags)     (0)
-#define xfs_trans_reserve_quota_bydquots(tp, mp, u, g, nb, ni, fl)     (0)
+static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp,
+               struct xfs_inode *ip, long nblks, long ninos, uint flags)
+{
+       return 0;
+}
+static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
+               struct xfs_mount *mp, struct xfs_dquot *udqp,
+               struct xfs_dquot *gdqp, long nblks, long nions, uint flags)
+{
+       return 0;
+}
 #define xfs_qm_vop_create_dqattach(tp, ip, u, g)
 #define xfs_qm_vop_rename_dqattach(it)                                 (0)
 #define xfs_qm_vop_chown(tp, ip, old, new)                             (NULL)
@@ -357,11 +366,14 @@ xfs_qm_vop_dqalloc(struct xfs_inode *ip,
 #define xfs_qm_dqdetach(ip)
 #define xfs_qm_dqrele(d)
 #define xfs_qm_statvfs(ip, s)
-#define xfs_qm_sync(mp, fl)                                            (0)
+static inline int xfs_qm_sync(struct xfs_mount *mp, int flags)
+{
+       return 0;
+}
 #define xfs_qm_newmount(mp, a, b)                                      (0)
 #define xfs_qm_mount_quotas(mp)
 #define xfs_qm_unmount(mp)
-#define xfs_qm_unmount_quotas(mp)                                      (0)
+#define xfs_qm_unmount_quotas(mp)
 #endif /* CONFIG_XFS_QUOTA */
 
 #define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \

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