[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20150820165537.GA2044@mtj.duckdns.org>
Date: Thu, 20 Aug 2015 09:55:37 -0700
From: Tejun Heo <tj@...nel.org>
To: Eryu Guan <eguan@...hat.com>
Cc: Dave Chinner <david@...morbit.com>, Jens Axboe <axboe@...nel.dk>,
Jan Kara <jack@...e.cz>, linux-kernel@...r.kernel.org,
xfs@....sgi.com, axboe@...com, Jan Kara <jack@...e.com>,
linux-fsdevel@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH block/for-linus] writeback: fix syncing of I_DIRTY_TIME
inodes
Hello, Eryu. Thanks a lot for the trace.
So, this is from the end of the trace from the failed test.
...
kworker/u8:1-1563 [002] 22016.987530: xfs_writepage: dev 253:6 ino 0xef64fe pgoff 0x9ff000 size 0xa00000 offset 0 length 0 delalloc 1 unwritten 0
kworker/2:1-49 [002] 22017.373595: xfs_setfilesize: dev 253:6 ino 0xef6504 isize 0xa00000 disize 0x0 offset 0x0 count 10481664
...
Maybe I'm misunderstanding the code but all xfs_writepage() calls are
from unbound workqueues - the writeback workers - while
xfs_setfilesize() are from bound workqueues, so I wondered why that
was and looked at the code and the setsize functions are run off of a
separate work item which is queued from the end_bio callback and I
can't tell who would be waiting for them. Dave, what am I missing?
Thanks.
--
tejun
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists