Re: [patch 0/7] Asynchronous Notification for ATAPI devices (resend)

[Jeff Garzik <jeff@garzik.org>]

Kristen Carlson Accardi wrote:
> Hi Jeff,
> Here are the AN patches again, they have not changed with the exception
> of patch #1, which does set the host flag in board_ahci and board_ahci_pi
> now (thanks Tejun).
>
> This patch series implements Asynchronous Notification (AN) for SATA
> ATAPI devices as defined in SATA 2.5 and AHCI 1.1 and higher.  Drives
> which support this feature will send a notification when new media is
> inserted and removed, preventing the need for user space to poll for
> new media.  This support is exposed to user space via a flag that will
> be set in /sys/block/sr*/capability_flags.  If the flag is set, user
> space can disable polling for the new media, and the genhd driver will
> send a KOBJ_CHANGE event with the envp set to MEDIA_CHANGE_EVENT=1.
>
> Note that this patch only implements support for directly attached
> drives - AN with drives attached to a port multiplier requires 
> additional changes.

Patches look OK to me...  it will take some coordination for the 
non-libata bits.  I think Andrew mentioned some of this.  And if the 
SCSI bits get stuck in the SCSI maintainer's bit bucket, let me know.

	Jeff



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