Hi all, This is a collection of several quota related deadlock fixes for problems that have been reported to the list recently. Patch 1 fixes the low memory quotacheck problem reported by Martin[1]. Dave is CC'd as he had comments on this particular thread that started a discussion, but I hadn't heard anything back since my last response. Patch 2 fixes a separate problem I ran into while attempting to reproduce Eryu's xfs/305 hang report[2]. Patches 3-5 fix the actual problem reported by Eryu, which is a quotaoff deadlock reproduced by xfs/305. Further details are included in the individual commit log descriptions. Thoughts, reviews, flames appreciated. Eryu, I've run several hundred iterations of this on your reproducer system without reproducing the hang. I have reproduced a reset overnight but still haven't been able to grab a stack trace from that occurrence (I'll try again today/tonight with better console logging). I suspect this is a separate problem (possibly just an ASSERT() failure as this is a DEBUG kernel), but I'd appreciate any testing you can run against these patches to verify. Brian [1] http://www.spinics.net/lists/linux-xfs/msg01901.html [2] http://www.spinics.net/lists/linux-xfs/msg03835.html Brian Foster (5): xfs: bypass dquot reclaim to avoid quotacheck deadlock xfs: allocate quotaoff transactions up front to avoid log deadlock xfs: support ability to wait on new inodes xfs: update ag iterator to support wait on new inodes xfs: wait on new inodes during quotaoff dquot release fs/xfs/xfs_icache.c | 58 ++++++++++++++++++++++++++++++++++++++++-------- fs/xfs/xfs_icache.h | 8 +++++++ fs/xfs/xfs_inode.h | 4 +++- fs/xfs/xfs_qm.c | 11 +++++++++ fs/xfs/xfs_qm.h | 1 + fs/xfs/xfs_qm_syscalls.c | 45 +++++++++++++++++++++---------------- 6 files changed, 98 insertions(+), 29 deletions(-) -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
