Cross Reference: /systemd/src/basic/btrfs-util.c

Lines Matching refs:subvolume
92 static int extract_subvolume_name(const char *path, const char **subvolume) {
97         assert(subvolume);
105         *subvolume = fn;
151         const char *subvolume;
156         r = extract_subvolume_name(path, &subvolume);
164         strncpy(args.name, subvolume, sizeof(args.name)-1);
471                 /* Look precisely for the subvolume items */
691          * subvolume. This only works for subvolumes that have been
753          * subvolume. This is useful for determining the quota data
754          * for entire subvolume subtrees, as long as the subtrees have
1183 static int subvol_remove_children(int fd, const char *subvolume, uint64_t subvol_id, BtrfsRemoveFlags flags) {
1204         assert(subvolume);
1212         subvol_fd = openat(fd, subvolume, O_RDONLY|O_NOCTTY|O_CLOEXEC|O_DIRECTORY);
1222         /* First, try to remove the subvolume. If it happens to be
1224         strncpy(vol_args.name, subvolume, sizeof(vol_args.name)-1);
1232         /* OK, the subvolume is not empty, let's look for child
1283                                  * directory of the subvolume. */
1308          * again to remove the subvolume */
1318         const char *subvolume;
1323         r = extract_subvolume_name(path, &subvolume);
1331         return subvol_remove_children(fd, subvolume, 0, flags);
1334 int btrfs_subvol_remove_fd(int fd, const char *subvolume, BtrfsRemoveFlags flags) {
1335         return subvol_remove_children(fd, subvolume, 0, flags);
1447          * the new subvolume. */
1474                         /* The old subvolume was member of a qgroup
1484                                 /* The old subvolume shared a common
1486                                  * subvolume. Let's set up something
1529 static int subvol_snapshot_children(int old_fd, int new_fd, const char *subvolume, uint64_t old_subvol_id, BtrfsSnapshotFlags flags) {
1554         assert(subvolume);
1556         strncpy(vol_args.name, subvolume, sizeof(vol_args.name)-1);
1610                         /* Avoid finding the source subvolume a second
1616                          * subvolume is below the old one. */
1633                          * subvolume is in the top-level directory,
1645                         np = strjoin(subvolume, "/", ino_args.name, NULL);
1660                                         subvolume_fd = openat(new_fd, subvolume, O_RDONLY|O_NOCTTY|O_CLOEXEC|O_DIRECTORY);
1711         const char *subvolume;
1745         r = extract_subvolume_name(new_path, &subvolume);
1753         return subvol_snapshot_children(old_fd, new_fd, subvolume, 0, flags);
1866          * Sets up the specified subvolume's qgroup automatically in
1869          * If insert_intermediary_qgroup is false, the subvolume's
1871          * the subvolume's parent subvolume.
1875          * but reusing the id of the subvolume. The level number is
1877          * parent subvolume is a member of. If the parent subvolume's
1881          * qgroup, and the subvolume itself is assigned to it.
1883          * If the subvolume is already assigned to a higher level
1888          * function is invoked the subvolume will be accounted within
1891          * turn be used by subvolumes created beneath this subvolume
1896          * created subvolume: each subvolume is always accounting
1940                  * subvolume is assigned to. */
1991                 /* Assign our subvolume to all the same qgroups as the parent */
2021                 /* Look precisely for the subvolume items */