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.karbst...@gmail.com>
---
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
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