Qu Wenruo
2014-May-06 06:33 UTC
[RFC PATCH 1/2] btrfs-progs: Follow kernel changes to add new member of btrfs_ioctl_dev_info_args.
Follow the kernel header changes to add new member of
btrfs_ioctl_dev_info_args.
This change will use special bit to keep backward compatibility, so even
on old kernels this will not screw anything up.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
---
ioctl.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/ioctl.h b/ioctl.h
index 9627e8d..672a3a3 100644
--- a/ioctl.h
+++ b/ioctl.h
@@ -156,12 +156,15 @@ struct btrfs_ioctl_dev_replace_args {
__u64 spare[64];
};
+#define BTRFS_IOCTL_DEV_INFO_MISSING (1ULL<<0)
+#define BTRFS_IOCTL_DEV_INFO_FLAG_SET (1ULL<<63)
struct btrfs_ioctl_dev_info_args {
__u64 devid; /* in/out */
__u8 uuid[BTRFS_UUID_SIZE]; /* in/out */
__u64 bytes_used; /* out */
__u64 total_bytes; /* out */
- __u64 unused[379]; /* pad to 4k */
+ __u64 flags; /* out */
+ __u64 unused[378]; /* pad to 4k */
__u8 path[BTRFS_DEVICE_PATH_NAME_MAX]; /* out */
};
--
1.9.2
--
To unsubscribe from this list: send the line "unsubscribe linux-btrfs"
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html