Re: [PATCH 3/3] Add timeout feature

Olaf Frączyk
2008-07-09T12:59:26Z

On Wed, 2008-07-09 at 08:24 -0400, Theodore Tso wrote:
> On Wed, Jul 09, 2008 at 09:49:58PM +1000, Dave Chinner wrote:
> > (e) none of the above. The kernel compilation will appear to pause
> > until the filesystem is unfrozen. No other visible effect should
> > occur. It will get blocked in a write or filesystem transaction
> > because the fs is frozen.
>
> So if the process which froze the filesystem accidentally tries
> writing to a log file (or database file containing the backup
> information, or whatever) that happens to be on the filesystem that is
> frozen, that process will get blocked and you end up in a deadlock;
> did I get that right?
Where do you see the deadlock?
The process doesn't have a lock on filesystem or something. You can
always unfreeze from another process.

Regards,

Olaf
--
Olaf Frączyk <olaf@cbk.poznan.pl>