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SubjectRe: [SCSI] fix media change events for polled devices
James Bottomley wrote:
> On Fri, 2008-03-21 at 10:31 -0700, Linus Torvalds wrote:
>> On Fri, 21 Mar 2008, Jeff Garzik wrote:
>>> And that is the fix -- initialize supported_events according to sr/sd's needs,
>>> and revert this change (4d1566ed2100d074ccc654e5cf2e44cdea3a01d0) as obviously
>>> broken.
>> Patches, please? I can do the revert, but the patch to supported_events
>> and the testing, please?
> I tested this and discussed it with Kristen before it went in. The
> current fix you sucked in with scsi-rc-fixes basically makes the whole
> lot work for 2.6.25 (both AN media change events and traditional polled
> ones). The thing that doesn't work is the ability to turn off AN events
> from user space, but that feature never worked anyway.

Not true. Change the perm with chmod...

But furthermore, change 4d1566ed renders the userspace interface
/inconsistent/ even for the read-only case that we all acknowledge
_does_ work.

IOW, after your "fix", the userspace interface gives an incorrect
picture of what events are/are not masked.

If you don't have the time to complete work on

commit 285e9670d91cdeb6b6693729950339cb45410fdc
Author: Kay Sievers <>
Date: Tue Aug 14 14:10:39 2007 +0200

[SCSI] sr,sd: send media state change modification events

then revert _that_.

Don't break my patch, just because yours (which came _after_ mine)
doesn't work.


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