Messages in this thread | | | Subject | Re: Wrong DIF guard tag on ext2 write | From | "Martin K. Petersen" <> | Date | Tue, 01 Jun 2010 09:17:36 -0400 |
| |
>>>>> "Nick" == Nick Piggin <npiggin@suse.de> writes:
>> Yep, known bug. Page writeback locking is messed up for buffer_head >> users. The extNfs folks volunteered to look into this a while back >> but I don't think they have found the time yet.
Nick> What do you mean by messed up? Allowing modifications to the page Nick> while it is under writeback? This is deliberate of course and not Nick> limited to buffer_head users either.
Messed up in the sense that (at least last I looked) very few buffer_head users were aware of the existence of the page writeback bit.
-- Martin K. Petersen Oracle Linux Engineering
| |