summaryrefslogtreecommitdiff
path: root/src/shared/machine-pool.c
diff options
context:
space:
mode:
authorLennart Poettering <lennart@poettering.net>2015-03-02 19:21:04 +0100
committerLennart Poettering <lennart@poettering.net>2015-03-02 19:36:21 +0100
commit4cee5eede280b7fd48c18a1942616c4ac896a554 (patch)
tree2cbf9dda7f441c39148dee0162a0ddd7e4df9fc8 /src/shared/machine-pool.c
parent65eae3b76243d2dfd869f8c43b787575f7b4b994 (diff)
machined: also set up /var/lib/machines as btrfs, if "machinectl set-limit" is called
Diffstat (limited to 'src/shared/machine-pool.c')
-rw-r--r--src/shared/machine-pool.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/shared/machine-pool.c b/src/shared/machine-pool.c
index 7b17395d21..b74252dbc8 100644
--- a/src/shared/machine-pool.c
+++ b/src/shared/machine-pool.c
@@ -47,7 +47,7 @@ static int check_btrfs(void) {
return F_TYPE_EQUAL(sfs.f_type, BTRFS_SUPER_MAGIC);
}
-static int setup_machine_raw(sd_bus_error *error) {
+static int setup_machine_raw(uint64_t size, sd_bus_error *error) {
_cleanup_free_ char *tmp = NULL;
_cleanup_close_ int fd = -1;
struct statvfs ss;
@@ -91,7 +91,7 @@ static int setup_machine_raw(sd_bus_error *error) {
goto fail;
}
- if (ftruncate(fd, VAR_LIB_MACHINES_SIZE_START) < 0) {
+ if (ftruncate(fd, size) < 0) {
r = sd_bus_error_set_errnof(error, errno, "Failed to enlarge /var/lib/machines.raw: %m");
goto fail;
}
@@ -160,7 +160,7 @@ fail:
return r;
}
-int setup_machine_directory(sd_bus_error *error) {
+int setup_machine_directory(uint64_t size, sd_bus_error *error) {
_cleanup_release_lock_file_ LockFile lock_file = LOCK_FILE_INIT;
struct loop_info64 info = {
.lo_flags = LO_FLAGS_AUTOCLEAR,
@@ -171,6 +171,12 @@ int setup_machine_directory(sd_bus_error *error) {
bool tmpdir_made = false, mntdir_made = false, mntdir_mounted = false;
int r, nr = -1;
+ /* btrfs cannot handle file systems < 16M, hence use this as minimum */
+ if (size == (uint64_t) -1)
+ size = VAR_LIB_MACHINES_SIZE_START;
+ else if (size < 16*1024*1024)
+ size = 16*1024*1024;
+
/* Make sure we only set the directory up once at a time */
r = make_lock_file("/run/systemd/machines.lock", LOCK_EX, &lock_file);
if (r < 0)
@@ -193,7 +199,7 @@ int setup_machine_directory(sd_bus_error *error) {
dir_is_empty("/var/lib/machines") == 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "/var/lib/machines is not a btrfs file system. Operation is not supported on legacy file systems.");
- fd = setup_machine_raw(error);
+ fd = setup_machine_raw(size, error);
if (fd < 0)
return fd;