diff options
| -rw-r--r-- | tools/hv/hv_vss_daemon.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c index 7ba54195934c..b2b4ebffab8c 100644 --- a/tools/hv/hv_vss_daemon.c +++ b/tools/hv/hv_vss_daemon.c @@ -21,6 +21,7 @@ #include <sys/types.h> #include <sys/poll.h> #include <sys/ioctl.h> +#include <sys/stat.h> #include <fcntl.h> #include <stdio.h> #include <mntent.h> @@ -30,6 +31,7 @@ #include <ctype.h> #include <errno.h> #include <linux/fs.h> +#include <linux/major.h> #include <linux/hyperv.h> #include <syslog.h> #include <getopt.h> @@ -70,6 +72,7 @@ static int vss_operate(int operation) char match[] = "/dev/"; FILE *mounts; struct mntent *ent; + struct stat sb; char errdir[1024] = {0}; unsigned int cmd; int error = 0, root_seen = 0, save_errno = 0; @@ -92,6 +95,10 @@ static int vss_operate(int operation) while ((ent = getmntent(mounts))) { if (strncmp(ent->mnt_fsname, match, strlen(match))) continue; + if (stat(ent->mnt_fsname, &sb) == -1) + continue; + if (S_ISBLK(sb.st_mode) && major(sb.st_rdev) == LOOP_MAJOR) + continue; if (hasmntopt(ent, MNTOPT_RO) != NULL) continue; if (strcmp(ent->mnt_type, "vfat") == 0) |