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| author | Tejun Heo <htejun@gmail.com> | 2007-09-23 13:14:12 +0900 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-12 14:55:41 -0400 |
| commit | da917d69d0ea63f5390716cba6e77f490ce96df9 (patch) | |
| tree | 214670f42be4c140bbd05226adc8f86db51ee725 /Documentation/stable_api_nonsense.txt | |
| parent | 31cc23b34913bc173680bdc87af79e551bf8cc0d (diff) | |
libata-pmp-prep: implement qc_defer helpers
Implement ap->nr_active_links (the number of links with active qcs),
ap->excl_link (pointer to link which can be used by ->qc_defer and is
cleared when a qc with ATA_QCFLAG_CLEAR_EXCL completes), and
ata_link_active().
These can be used by ->qc_defer() to implement proper command
exclusion. This set of helpers seem enough for both sil24 (ATAPI
exclusion needed) and cmd-switching PMP.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'Documentation/stable_api_nonsense.txt')
0 files changed, 0 insertions, 0 deletions