Messages in this thread | | | Subject | Re: deadlocks caused by ext3/reiser dirty_inode calls during do_mmap_pgoff | From | Chris Mason <> | Date | Tue, 22 Jun 2004 16:32:34 -0400 |
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On Tue, 2004-06-22 at 14:57, Andrew Morton wrote: > Chris Mason <mason@suse.com> wrote: > > > > Hmmm, reiserfs_file_write does fault_in_pages_readable after the > > transaction is started. > > That nests down_read(mmap_sem) inside transaction start, vastly increasing > the deadlock probability.
Yup
> > > I can at least make the window smaller for now > > by moving that before the transaction is started. > > Much smaller. > > We need to decide what the ranking is and stick with it. I think that's > "transaction start nests inside mmap_sem", agree?
Agreed.
-chris
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