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zed: Look for NVMe DEVPATH if no ID_BUS #13646

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Jul 14, 2022
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zed: Look for NVMe DEVPATH if no ID_BUS #13646

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13 changes: 11 additions & 2 deletions cmd/zed/zed_disk_event.c
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Original file line number Diff line number Diff line change
Expand Up @@ -169,7 +169,7 @@ zed_udev_monitor(void *arg)
while (1) {
struct udev_device *dev;
const char *action, *type, *part, *sectors;
const char *bus, *uuid;
const char *bus, *uuid, *devpath;
const char *class, *subclass;
nvlist_t *nvl;
boolean_t is_zfs = B_FALSE;
Expand Down Expand Up @@ -248,10 +248,19 @@ zed_udev_monitor(void *arg)
* device id string is required in the message schema
* for matching with vdevs. Preflight here for expected
* udev information.
*
* Special case:
* NVMe devices don't have ID_BUS set (at least on RHEL 7-8),
* but they are valid for autoreplace. Add a special case for
* them by searching for "/nvme/" in the udev DEVPATH:
*
* DEVPATH=/devices/pci0000:00/0000:00:1e.0/nvme/nvme2/nvme2n1
*/
bus = udev_device_get_property_value(dev, "ID_BUS");
uuid = udev_device_get_property_value(dev, "DM_UUID");
if (!is_zfs && (bus == NULL && uuid == NULL)) {
devpath = udev_device_get_devpath(dev);
if (!is_zfs && (bus == NULL && uuid == NULL &&
strstr(devpath, "/nvme/") == NULL)) {
zed_log_msg(LOG_INFO, "zed_udev_monitor: %s no devid "
"source", udev_device_get_devnode(dev));
udev_device_unref(dev);
Expand Down