Re: handling ENOMEM in usb sg handling
Oliver Neukum <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Am Montag, 18. Juni 2007 schrieb Alan Stern: > On Mon, 18 Jun 2007, Oliver Neukum wrote: > > > Hi, > > > > I am looking at usb_sg_init(). > > > In essence this leaves handling a persistent failure to the generic > > scsi layer, which will timeout and abort the request. Is there any objection > > to report the URB where it failed to the immediate user and let him > > retry the remainder or handle the error any other way? > > I dimly remember discussing this routine in the past. > > You could make usb_sg_wait just wait until the part already submitted > was finished, then go back and retry the remainder. I think that would > be simpler. It does retry continously, so it'll retry when the earlier URBs are completed. Maybe you are right and at some place we must trust the mm to keep a sufficient reserve. Regards Oliver ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel