diff options
Diffstat (limited to 'props.c')
| -rw-r--r-- | props.c | 69 |
1 files changed, 25 insertions, 44 deletions
@@ -21,6 +21,8 @@ #include <fcntl.h> #include <unistd.h> +#include <btrfsutil.h> + #include "ctree.h" #include "commands.h" #include "utils.h" @@ -41,56 +43,35 @@ static int prop_read_only(enum prop_object_type type, const char *name, const char *value) { - int ret = 0; - int fd = -1; - u64 flags = 0; - - fd = open(object, O_RDONLY); - if (fd < 0) { - ret = -errno; - error("failed to open %s: %s", object, strerror(-ret)); - goto out; - } + enum btrfs_util_error err; + bool read_only; - ret = ioctl(fd, BTRFS_IOC_SUBVOL_GETFLAGS, &flags); - if (ret < 0) { - ret = -errno; - error("failed to get flags for %s: %s", object, - strerror(-ret)); - goto out; - } - - if (!value) { - if (flags & BTRFS_SUBVOL_RDONLY) - fprintf(stdout, "ro=true\n"); - else - fprintf(stdout, "ro=false\n"); - ret = 0; - goto out; - } + if (value) { + if (!strcmp(value, "true")) { + read_only = true; + } else if (!strcmp(value, "false")) { + read_only = false; + } else { + error("invalid value for property: %s", value); + return -EINVAL; + } - if (!strcmp(value, "true")) { - flags |= BTRFS_SUBVOL_RDONLY; - } else if (!strcmp(value, "false")) { - flags = flags & ~BTRFS_SUBVOL_RDONLY; + err = btrfs_util_set_subvolume_read_only(object, read_only); + if (err) { + error_btrfs_util(err); + return -errno; + } } else { - ret = -EINVAL; - error("invalid value for property: %s", value); - goto out; - } + err = btrfs_util_get_subvolume_read_only(object, &read_only); + if (err) { + error_btrfs_util(err); + return -errno; + } - ret = ioctl(fd, BTRFS_IOC_SUBVOL_SETFLAGS, &flags); - if (ret < 0) { - ret = -errno; - error("failed to set flags for %s: %s", object, - strerror(-ret)); - goto out; + printf("ro=%s\n", read_only ? "true" : "false"); } -out: - if (fd != -1) - close(fd); - return ret; + return 0; } static int prop_label(enum prop_object_type type, |