The command btrfs subvolume set-default 0 /path/to/fs changed the default subvolume to whatever subvolume was currently mounted on /path/to/fs. This patch changes this behaviour to set the default subvolume to BTRFS_FS_TREE_OBJECTID in case the user asks for subvolid=0 Signed-off-by: Alexander Karbstein <alexander.karbstein@xxxxxxxxx> --- cmds-subvolume.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/cmds-subvolume.c b/cmds-subvolume.c index 3508ce6..8f8c918 100644 --- a/cmds-subvolume.c +++ b/cmds-subvolume.c @@ -25,6 +25,7 @@ #include <limits.h> #include "kerncompat.h" +#include "ctree.h" #include "ioctl.h" #include "commands.h" @@ -464,6 +465,9 @@ static int cmd_subvol_set_default(int argc, char **argv) fprintf(stderr, "ERROR: invalid tree id (%s)\n",subvolid); return 30; } + /* Using the original root fs tree */ + if (objectid == 0ULL) + objectid = BTRFS_FS_TREE_OBJECTID; ret = ioctl(fd, BTRFS_IOC_DEFAULT_SUBVOL, &objectid); e = errno; close(fd); -- 1.7.2.5 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
