[XFS] fix jiffies (lbolt) compare

SGI Modid: 2.5.x-xfs:slinx:130589a

fs/xfs/linux/xfs_linux.h

@@ -153,7 +153,6 @@ typedef struct xfs_dirent {		/* data from readdir() */
 #define EFSCORRUPTED	990		/* Filesystem is corrupted */
 
 #define SYNCHRONIZE()	barrier()
-#define lbolt		jiffies
 #define rootdev		ROOT_DEV
 #define __return_address __builtin_return_address(0)
 #define LONGLONG_MAX	9223372036854775807LL	/* max "long long int" */

fs/xfs/xfs_buf_item.c

@@ -1029,12 +1029,12 @@ xfs_buf_iodone_callbacks(
 		}
 
 		if ((XFS_BUF_TARGET_DEV(bp) != lastdev) ||
-		    ((lbolt - lasttime) > 500)) {
+		    (time_after(jiffies, (lasttime + 5*HZ)))) {
+			lasttime = jiffies;
 			prdev("XFS write error in file system meta-data "
 			      "block 0x%Lx in %s",
 			      XFS_BUF_TARGET_DEV(bp),
 			      XFS_BUF_ADDR(bp), mp->m_fsname);
-			lasttime = lbolt;
 		}
 		lastdev = XFS_BUF_TARGET_DEV(bp);