[PATCH 2/4] btrfs: export dev_item.type in /sys/fs/btrfs/<uuid>/devinfo/<devid>/type
From: Goffredo Baroncelli <hidden>
Date: 2021-10-24 15:39:39
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
From: Goffredo Baroncelli <redacted> Signed-off-by: Goffredo Baroncelli <redacted> --- fs/btrfs/sysfs.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
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);
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2.33.0