1: close potential race condition by at enclosure race condition
2,3,4: add enclosure id and device slot, so we can create symlink
in /dev/disk/by-slot:
# ls -d /dev/disk/by-slot/*
/dev/disk/by-slot/enclosure-0x5000ae41fc1310ff-slot0
5: add ability to power on/off device with power_status file in
sysfs.
Due to the complexity of SES standard, the module is not to replace implement \
all features of sg_ses (sg3_utils).
Patch 5 and existing features for device element and array device elements
control \
of HDDs. It is helpful to handle some HDD related fields in the kernel, as the \
kernel can generate mapping between a device to the SES device element (or
array \
device element):
/sys/block/sdc/device/enclosure_deviceXXX/
With patch 5, we can easily power off a running HDD by
echo off > /sys/block/sdc/device/enclosure_deviceXXX/power_status
This is very useful for systems like Cold Storage, where HDDs are being powered
\
on/off frequently
Dan Williams (4):
ses: close potential registration race
ses: generate KOBJ_CHANGE on enclosure attach
ses: add enclosure logical id
ses: add reliable slot attribute
Song Liu (1):
ses: Add power_status to SES device slot
drivers/misc/enclosure.c | 106 +++++++++++++++++++++++++++++----
drivers/scsi/ses.c | 148 +++++++++++++++++++++++++++++++++++++++-------
include/linux/enclosure.h | 13 +++-
3 files changed, 232 insertions(+), 35 deletions(-)
--
1.8.1
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