15 messages in org.freebsd.freebsd-fsRe: umount -f implementation | From | Sent On | Attachments |
|---|---|---|
| Rick Macklem | Jun 28, 2009 4:59 pm | |
| Nathanael Hoyle | Jun 28, 2009 5:31 pm | |
| David G Lawrence | Jun 28, 2009 9:52 pm | |
| Attilio Rao | Jun 29, 2009 2:55 am | |
| Rick Macklem | Jun 29, 2009 7:38 am | |
| Rick Macklem | Jun 29, 2009 8:16 am | |
| Bruce Evans | Jun 29, 2009 10:52 am | |
| Rick C. Petty | Jun 29, 2009 4:26 pm | |
| Rick Macklem | Jun 30, 2009 9:00 am | |
| Attilio Rao | Jun 30, 2009 9:07 am | |
| Kostik Belousov | Jun 30, 2009 12:32 pm | |
| Rick Macklem | Jun 30, 2009 1:03 pm | |
| Kirk McKusick | Jun 30, 2009 2:58 pm | |
| Julian H. Stacey | Jun 30, 2009 5:48 pm | |
| Rick Macklem | Jul 1, 2009 10:26 am |
| Subject: | Re: umount -f implementation | |
|---|---|---|
| From: | Rick Macklem (rmac...@uoguelph.ca) | |
| Date: | Jul 1, 2009 10:26:51 am | |
| List: | org.freebsd.freebsd-fs | |
On Wed, 1 Jul 2009, Julian H. Stacey wrote:
Kirk McKusick wrote:
forced unmounts. The gentle force (-f) and the brute force (-F) unmount.
-F Would also be nice for devd.conf detach, for when people forget & pull a USB stick without unmounting first. Better a corrupt stick than a crashed OS.
All I'll add is, for the experimental nfs client, if both semantics are desired (and, imho they are), there will need to be separate flags to indicate whether or not to terminate RPCs in progress.
So, it seems that there is interest in a separate "umount -F" to handle the case of failed storage (disk subsystem, NAS server down,...). Is there anyone who is opposed to my pursuing this after FreeBSD-CURRENT branches from 8? (I can do the experimental nfs client + some testing. Hopefully others can help with the generic VFS issues and other file systems.)
rick, who obviously doesn't have as good a memory as Kirk's:-) ps: Unfortunately Solaris uses "-F" for something entirely different, so feel free to suggest other flag values if you think that is a concern.
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