> -----Original Message----- > From: Jens Axboe [mailto:axboe@xxxxxxxxx] > Sent: Tuesday, May 12, 2015 10:33 AM > To: Elliott, Robert (Server Storage); fio@xxxxxxxxxxxxxxx > Cc: Sitsofe Wheeler; Jon Tango > Subject: Re: linux /dev and normal files > > On 04/03/2015 02:24 PM, Jens Axboe wrote: > > On 04/03/2015 12:13 PM, Elliott, Robert (Server Storage) wrote: > >> > >> > >>> -----Original Message----- > >>> From: fio-owner@xxxxxxxxxxxxxxx [mailto:fio-owner@xxxxxxxxxxxxxxx] On > >>> Behalf Of Jens Axboe > >>> Sent: Thursday, October 2, 2014 1:32 PM > >>> To: Elliott, Robert (Server Storage); fio@xxxxxxxxxxxxxxx > >>> Cc: Sitsofe Wheeler; Jon Tango > >>> Subject: Re: linux /dev and normal files > >>> > >>> On 10/02/2014 12:21 PM, Elliott, Robert (Server Storage) wrote: > >>>>>>> It might be better to continue to attempt to run the > >>>>>>> other jobs. > >>>>>> > >>>>>> We should just go for the simpler create/nocreate solution, I > prefer > >>>>>> that. This is too involved, and it's hard to get all the cases > right > >>>>>> since there are a bunch of different ways that files are added. > Which > >>>>>> was why this patch only focused on filename=, since that is the one > >>> that > >>>>>> is the most interesting. But it still isn't pretty. If we add the > >>>>>> allow_file_create option, it's basically a two-liner change in a > few > >>>>>> places to not use O_CREAT. > >>>>> > >>>>> That took roughly 4 minutes... Does this work? Set > allow_file_create=0 > >>>>> to disallow creating new files. > >> ... > >>> > >>> OK, let me test that, will spin a new one. > >> > >> I don't think this ever got added. > > > > It didn't... Did you re-test? No reason we can't get it added, I'll look > > into it start next week. > > Robert, I added this. Can you check current -git and see if it behaves > as expected for you? > Looks good. Adding allow_file_create=0 prevents it from creating files in /dev when the specified path does not exist and size= is specified. Starting 80 threads drive_0: Laying out IO file(s) (1 file(s) / 10MB) fio: file creation disallowed by allow_file_create=0 drive_0: Laying out IO file(s) (1 file(s) / 10MB) fio: file creation disallowed by allow_file_create=0 drive_0: Laying out IO file(s) (1 file(s) / 10MB) fio: file creation disallowed by allow_file_create=0 ... --- Robert Elliott, HP Server Storage ��.n��������+%������w��{.n�������^n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�
