The patch titled
cciss: kick off logical drive topology rescan through sysfs
has been added to the -mm tree. Its filename is
cciss-kick-off-logical-drive-topology-rescan-through-sysfs.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: cciss: kick off logical drive topology rescan through sysfs
From: Andrew Patterson <andrew.patterson@xxxxxx>
Added /sys/bus/pci/devices/<dev>/ccissX/rescan sysfs entry used
to kick off a rescan that discovers logical drive topology changes.
Acked-by: Mike Miller <mike.miller@xxxxxx>
Signed-off-by: Andrew Patterson <andrew.patterson@xxxxxx>
Cc: Jens Axboe <jens.axboe@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/ABI/testing/sysfs-bus-pci-devices-cciss | 7 ++
drivers/block/cciss.c | 35 +++++++++-
2 files changed, 39 insertions(+), 3 deletions(-)
diff -puN Documentation/ABI/testing/sysfs-bus-pci-devices-cciss~cciss-kick-off-logical-drive-topology-rescan-through-sysfs Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
--- a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss~cciss-kick-off-logical-drive-topology-rescan-through-sysfs
+++ a/Documentation/ABI/testing/sysfs-bus-pci-devices-cciss
@@ -31,3 +31,10 @@ Date: March 2009
Kernel Version: 2.6.30
Contact: iss_storagedev@xxxxxx
Description: A symbolic link to /sys/block/cciss!cXdY
+
+Where: /sys/bus/pci/devices/<dev>/ccissX/rescan
+Date: July 2009
+Kernel Version: 2.6.31
+Contact: iss_storagedev@xxxxxx
+Description: Kicks of a rescan of the controller to discovery logical
+ drive topology changes.
diff -puN drivers/block/cciss.c~cciss-kick-off-logical-drive-topology-rescan-through-sysfs drivers/block/cciss.c
--- a/drivers/block/cciss.c~cciss-kick-off-logical-drive-topology-rescan-through-sysfs
+++ a/drivers/block/cciss.c
@@ -461,9 +461,19 @@ static void __devinit cciss_procinit(int
#define to_hba(n) container_of(n, struct ctlr_info, dev)
#define to_drv(n) container_of(n, drive_info_struct, dev)
-static struct device_type cciss_host_type = {
- .name = "cciss_host",
-};
+static ssize_t host_store_rescan(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ctlr_info *h = to_hba(dev);
+
+ add_to_scan_list(h);
+ wake_up_process(cciss_scan_thread);
+ wait_for_completion_interruptible(&h->scan_wait);
+
+ return count;
+}
+DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan);
static ssize_t dev_show_unique_id(struct device *dev,
struct device_attribute *attr,
@@ -567,6 +577,25 @@ static ssize_t dev_show_rev(struct devic
}
DEVICE_ATTR(rev, S_IRUGO, dev_show_rev, NULL);
+static struct attribute *cciss_host_attrs[] = {
+ &dev_attr_rescan.attr,
+ NULL
+};
+
+static struct attribute_group cciss_host_attr_group = {
+ .attrs = cciss_host_attrs,
+};
+
+static struct attribute_group *cciss_host_attr_groups[] = {
+ &cciss_host_attr_group,
+ NULL
+};
+
+static struct device_type cciss_host_type = {
+ .name = "cciss_host",
+ .groups = cciss_host_attr_groups,
+};
+
static struct attribute *cciss_dev_attrs[] = {
&dev_attr_unique_id.attr,
&dev_attr_model.attr,
_
Patches currently in -mm which might be from andrew.patterson@xxxxxx are
cciss-remove-logical-drive-sysfs-entries-during-driver-cleanup.patch
cciss-use-only-one-scan-thread.patch
cciss-kick-off-logical-drive-topology-rescan-through-sysfs.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
