diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 1fe9a553c37b..f0025d1c3d5a 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -101,6 +101,16 @@ Description: devices that support receiving integrity metadata. +What: /sys/block//partscan +Date: May 2024 +Contact: Christoph Hellwig +Description: + The /sys/block//partscan files reports if partition + scanning is enabled for the disk. It returns "1" if partition + scanning is enabled, or "0" if not. The value type is a 32-bit + unsigned integer, but only "0" and "1" are valid values. + + What: /sys/block///alignment_offset Date: April 2009 Contact: Martin K. Petersen diff --git a/block/genhd.c b/block/genhd.c index 4b85963d09db..dec2ee338fb4 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1044,6 +1044,12 @@ static ssize_t diskseq_show(struct device *dev, return sprintf(buf, "%llu\n", disk->diskseq); } +static ssize_t partscan_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%u\n", disk_has_partscan(dev_to_disk(dev))); +} + static DEVICE_ATTR(range, 0444, disk_range_show, NULL); static DEVICE_ATTR(ext_range, 0444, disk_ext_range_show, NULL); static DEVICE_ATTR(removable, 0444, disk_removable_show, NULL); @@ -1057,6 +1063,7 @@ static DEVICE_ATTR(stat, 0444, part_stat_show, NULL); static DEVICE_ATTR(inflight, 0444, part_inflight_show, NULL); static DEVICE_ATTR(badblocks, 0644, disk_badblocks_show, disk_badblocks_store); static DEVICE_ATTR(diskseq, 0444, diskseq_show, NULL); +static DEVICE_ATTR(partscan, 0444, partscan_show, NULL); #ifdef CONFIG_FAIL_MAKE_REQUEST ssize_t part_fail_show(struct device *dev, @@ -1103,6 +1110,7 @@ static struct attribute *disk_attrs[] = { &dev_attr_events_async.attr, &dev_attr_events_poll_msecs.attr, &dev_attr_diskseq.attr, + &dev_attr_partscan.attr, #ifdef CONFIG_FAIL_MAKE_REQUEST &dev_attr_fail.attr, #endif