[XFS] kill INDUCE_IO_ERROR

All the error injection is already enabled through ifdef DEBUG, so kill
the never set second cpp symbol to activate it without the rest of the
debugging infrastructure.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31771a

Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>

fs/xfs/xfs_error.c

@@ -58,9 +58,6 @@ xfs_error_trap(int e)
 	}
 	return e;
 }
-#endif
-
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
 
 int	xfs_etest[XFS_NUM_INJECT_ERROR];
 int64_t	xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
@@ -154,7 +151,7 @@ xfs_errortag_clearall(xfs_mount_t *mp, int loud)
 
 	return 0;
 }
-#endif /* DEBUG || INDUCE_IO_ERROR */
+#endif /* DEBUG */
 
 static void
 xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)

fs/xfs/xfs_error.h

@@ -125,30 +125,22 @@ extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
 #define XFS_RANDOM_DIOWRITE_IOERR			(XFS_RANDOM_DEFAULT/10)
 #define	XFS_RANDOM_BMAPIFORMAT				XFS_RANDOM_DEFAULT
 
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
+#ifdef DEBUG
 extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
 
 #define	XFS_NUM_INJECT_ERROR				10
-
-#ifdef __ANSI_CPP__
-#define XFS_TEST_ERROR(expr, mp, tag, rf)		\
-	((expr) || \
-	 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
-			 (rf)))
-#else
 #define XFS_TEST_ERROR(expr, mp, tag, rf)		\
 	((expr) || \
 	 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
 			(rf)))
-#endif /* __ANSI_CPP__ */
 
 extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
 extern int xfs_errortag_clearall(xfs_mount_t *mp, int loud);
 #else
 #define XFS_TEST_ERROR(expr, mp, tag, rf)	(expr)
 #define xfs_errortag_add(tag, mp)		(ENOSYS)
 #define xfs_errortag_clearall(mp, loud)		(ENOSYS)
-#endif /* (DEBUG || INDUCE_IO_ERROR) */
+#endif /* DEBUG */
 
 /*
  * XFS panic tags -- allow a call to xfs_cmn_err() be turned into

fs/xfs/xfs_mount.c

@@ -1315,7 +1315,7 @@ xfs_unmountfs(xfs_mount_t *mp)
 	if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0)
 		uuid_table_remove(&mp->m_sb.sb_uuid);
 
-#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
+#if defined(DEBUG)
 	xfs_errortag_clearall(mp, 0);
 #endif
 	xfs_mount_free(mp);