On 08/31/2016 07:46 AM, Wang Xiaoguang wrote:
If can_overcommit() in btrfs_calc_reclaim_metadata_size() returns true,
btrfs_async_reclaim_metadata_space() will not reclaim metadata space, just
return directly and also forget to wake up process which are waiting for
their tickets, so these processes will wait endlessly.
Fstests case generic/172 with mount option "-o compress=lzo" have revealed
this bug in my test machine. Here if we have tickets to handle, we must
handle them first.
Signed-off-by: Wang Xiaoguang <wangxg.f...@cn.fujitsu.com>
Yup good catch, you can add
Reviewed-by: Josef Bacik <jba...@fb.com>
Thanks,
Josef
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