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SubjectRe: [PATCH] [fuse] alloc_page nofs avoid deadlock
On Fri, 10 Jun 2022 at 09:48, Ed Tsai <> wrote:

> Recently, we get this deadlock issue again. fuse_flush_time_update()
> use sync_inode_metadata() and it only write the metadata, so the
> writeback worker could still be blocked becaused of file data.
> I try to use write_inode_now() instead of sync_inode_metadata() and the
> writeback thread will not be blocked anymore. I don't think this is a
> good solution, but this confirm that there is still a potential
> deadlock because of file data. WDYT.

I'm not sure how that happens. Normally writeback doesn't block. Can
you provide the stack traces of all related tasks in the deadlock?


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