Tejun Heo wrote:
Implement ata_all_ports list. All active ata_ports are linked on this
list. This will be used to dynamically modify libata-wide
configurations.
Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
---
drivers/scsi/libata-core.c | 13 +++++++++++++
include/linux/libata.h | 2 ++
2 files changed, 15 insertions(+), 0 deletions(-)
a962488760934f639dd202793694339afd2db1cf
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 61db4f5..1477d32 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -70,6 +70,9 @@ static unsigned int ata_dev_init_params(
static unsigned int ata_dev_set_xfermode(struct ata_device *dev);
static void ata_dev_xfermask(struct ata_device *dev);
+static DEFINE_MUTEX(ata_all_ports_mutex);
+static LIST_HEAD(ata_all_ports);
NAK. I'm pretty strongly against things that cross the controller
boundary. Any information or data structure shared across multiple
controllers often winds up unnecessary limiting future implementations,
and become locking/serialization nightmares.
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