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-rw-r--r--src/basic/rm-rf.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/basic/rm-rf.c b/src/basic/rm-rf.c
index 43816fd1bb..baa70c2c8d 100644
--- a/src/basic/rm-rf.c
+++ b/src/basic/rm-rf.c
@@ -27,6 +27,7 @@
#include <unistd.h>
#include "btrfs-util.h"
+#include "cgroup-util.h"
#include "fd-util.h"
#include "log.h"
#include "macro.h"
@@ -36,9 +37,14 @@
#include "stat-util.h"
#include "string-util.h"
+static bool is_physical_fs(const struct statfs *sfs) {
+ return !is_temporary_fs(sfs) && !is_cgroup_fs(sfs);
+}
+
int rm_rf_children(int fd, RemoveFlags flags, struct stat *root_dev) {
_cleanup_closedir_ DIR *d = NULL;
int ret = 0, r;
+ struct statfs sfs;
assert(fd >= 0);
@@ -47,13 +53,13 @@ int rm_rf_children(int fd, RemoveFlags flags, struct stat *root_dev) {
if (!(flags & REMOVE_PHYSICAL)) {
- r = fd_is_temporary_fs(fd);
+ r = fstatfs(fd, &sfs);
if (r < 0) {
safe_close(fd);
- return r;
+ return -errno;
}
- if (!r) {
+ if (is_physical_fs(&sfs)) {
/* We refuse to clean physical file systems
* with this call, unless explicitly
* requested. This is extra paranoia just to
@@ -210,7 +216,7 @@ int rm_rf(const char *path, RemoveFlags flags) {
if (statfs(path, &s) < 0)
return -errno;
- if (!is_temporary_fs(&s)) {
+ if (is_physical_fs(&s)) {
log_error("Attempted to remove disk file system, and we can't allow that.");
return -EPERM;
}