On 07/15/2014 05:31 PM, Theodore Ts'o wrote: > On Tue, Jul 15, 2014 at 09:05:29AM +0800, Chen Gang wrote: >> When SMP is disabled, 'struct percpu_counter' has no 'counters' member, >> so need skip it when in !SMP. >> >> The related git commit: >> >> "feab139 ext4: rearrange initialization to fix EXT4FS_DEBUG". >> >> The related error (with allmodconfig under score): >> >> CC [M] fs/ext4/super.o >> fs/ext4/super.c: In function 'ext4_commit_super': >> fs/ext4/super.c:4546:41: error: 'struct percpu_counter' has no member named 'counters' >> if (EXT4_SB(sb)->s_freeclusters_counter.counters) >> ^ >> fs/ext4/super.c:4550:39: error: 'struct percpu_counter' has no member named 'counters' >> if (EXT4_SB(sb)->s_freeinodes_counter.counters) > > Thanks for the pointing out the problem. I though think the right way > of fixing this problem, though, instead of using the #ifdef > CONFIG_SMP, is to do this: > > if (percpu_counter_initialized(&EXT4_SB(sb)->s_freeclusters_counter)) > ... > That sounds fine to me (unlike my ugly fix, your fix is common and standard), thanks. > I'll respin the "ext4: rearrange initialization to fix EXT4FS_DEBUG" > commit to include this fix and give you credit in the commit logs for > pointing out this issue. > Thank you for your work. Thanks. -- Chen Gang Open, share, and attitude like air, water, and life which God blessed -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html