From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dong Fang <yp.fangdong@gmail.com>
Subject: Re: [PATCH RFC 1/2] Skiplist: rcu range index
Date: Sun, 14 Jul 2013 10:06:40 -0400
Message-ID: <51E2B070.3000003@gmail.com>
References: <20130616145612.4914.3009@localhost.localdomain> <20130616145725.4914.62425@localhost.localdomain>
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Cc: Chris Mason <clmason@fusionio.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	Linux FS Devel <linux-fsdevel@vger.kernel.org>,
	David Woodhouse <David.Woodhouse@intel.com>,
	"dchinner@redhat.com" <dchinner@redhat.com>,
	"bo.li.liu@oracle.com" <bo.li.liu@oracle.com>,
	"rp@svcs.cs.pdx.edu" <rp@svcs.cs.pdx.edu>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	Lai Jiangshan <laijs@cn.fujitsu.com>,
	Stephen Hemminger <shemminger@vyatta.com>,
	Alan Stern <stern@rowland.harvard.edu>
To: Chris Mason <chris.mason@fusionio.com>
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On 06/16/2013 10:57 AM, Chris Mason wrote:
 > Signed-off-by: Chris Mason <chris.mason@fusionio.com>
 > ---
 >   include/linux/skiplist.h |  235 ++++++
 >   init/main.c              |    5 +
 >   lib/Kconfig              |   14 +
 >   lib/Makefile             |    3 +
 >   lib/skiplist.c           | 2106 
++++++++++++++++++++++++++++++++++++++++++++++
 >   lib/skiplist_test.c      |  882 +++++++++++++++++++
 >   6 files changed, 3245 insertions(+)
 >   create mode 100644 include/linux/skiplist.h
 >   create mode 100644 lib/skiplist.c
 >   create mode 100644 lib/skiplist_test.c
 >
...
 > +
 > +static void pretty_time(struct timespec *ts, unsigned long long 
*seconds, unsigned long long *ms)
 > +{
 > +    unsigned long long m;
 > +
 > +    *seconds = ts->tv_sec;
 > +
 > +    m = ts->tv_nsec / 1000000ULL;
Linux: centos 6.4 32bit 3.10
Gcc version: gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-3)

compiler error:

   CC [M]  lib/skiplist_test.o
   Building modules, stage 2.
   MODPOST 12 modules
ERROR: "__udivdi3" [lib/skiplist_test.ko] undefined!

 > +    *ms = m;
 > +}
 > +
...