path: root/drivers/ata/libata-core.c
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authorPaolo Bonzini <pbonzini@redhat.com>2012-07-05 14:18:21 +0200
committerJeff Garzik <jgarzik@redhat.com>2012-08-17 14:10:36 -0400
commit1b26d29ccd592ea585c7cc291384184c5568da92 (patch)
tree561574fb2d7d1901134044f5f4d4340ade3ce07e /drivers/ata/libata-core.c
parent6ca8e79466d34874c188906e775c8f1f8c89b67a (diff)
[libata] scsi: implement MODE SELECT command
The cache_type file in sysfs lets users configure the disk cache in write-through or write-back modes. However, ata disks do not support writing to the file because they do not implement the MODE SELECT command. This patch adds a translation from MODE SELECT (for the caching page only) to the ATA SET FEATURES command. The set of changeable parameters answered by MODE SENSE is also adjusted accordingly. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/libata-core.c')
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