Hello, On 11/24/2016 04:12 PM, Jan Kara wrote:
Hello, this patch set changes quota code to use s_umount semaphore for serialization of quota on/off operations among each other and with other quotactl and quota writeback operations. So far we have used dedicated dqonoff_mutex but that triggered lockdep warnings during fs freezing and also unnecessarily serialized some quotactl operations. Al, any objections to patch 1/7 exporting functionality to get superblock with s_umount in exclusive mode? Alternatively I could add a wrapper around get_super_thawed() in quota code to drop s_umount & get it in exclusive mode and recheck that superblock didn't get unmounted / frozen but what I did here looked cleaner to me. OCFS2 guys, it would be good if you could test ocfs2 quotas with this patch set in some multi-node setup (I have tested just with a single node), especially whether quota file recovery for other nodes still works as expected. Thanks.
With this patch set, the quota file recovery works well for ocfs2 on multiple nodes. Tested-by: Eric Ren <zren@xxxxxxxx> Thanks, Eric
If nobody objects, I'll push these changes through my tree to Linus. Honza -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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