diff mbox series

[2/4] btrfs: export dev_item.type in /sys/fs/btrfs/<uuid>/devinfo/<devid>/type

Message ID e63991b3d283801802c1e2100e0a15a81a161fba.1635089352.git.kreijack@inwind.it (mailing list archive)
State New, archived
Headers show
Series btrfs: allocation_hint mode | expand

Commit Message

Goffredo Baroncelli Oct. 24, 2021, 3:31 p.m. UTC 
From: Goffredo Baroncelli <kreijack@inwind.it>

Signed-off-by: Goffredo Baroncelli <kreijack@inwind.it>
---
 fs/btrfs/sysfs.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index 9d1d140118ff..402b98acf2aa 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -1510,6 +1510,16 @@  static ssize_t btrfs_devinfo_error_stats_show(struct kobject *kobj,
 }
 BTRFS_ATTR(devid, error_stats, btrfs_devinfo_error_stats_show);
 
+static ssize_t btrfs_devinfo_type_show(struct kobject *kobj,
+					    struct kobj_attribute *a, char *buf)
+{
+	struct btrfs_device *device = container_of(kobj, struct btrfs_device,
+						   devid_kobj);
+
+	return scnprintf(buf, PAGE_SIZE, "0x%08llx\n", device->type);
+}
+BTRFS_ATTR(devid, type, btrfs_devinfo_type_show);
+
 static struct attribute *devid_attrs[] = {
 	BTRFS_ATTR_PTR(devid, error_stats),
 	BTRFS_ATTR_PTR(devid, in_fs_metadata),
@@ -1517,6 +1527,7 @@  static struct attribute *devid_attrs[] = {
 	BTRFS_ATTR_PTR(devid, replace_target),
 	BTRFS_ATTR_PTR(devid, scrub_speed_max),
 	BTRFS_ATTR_PTR(devid, writeable),
+	BTRFS_ATTR_PTR(devid, type),
 	NULL
 };
 ATTRIBUTE_GROUPS(devid);