diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/sd-device/sd-device.c index d31526fc222..7a346257dfb 100644 --- a/src/libsystemd/sd-device/sd-device.c +++ b/src/libsystemd/sd-device/sd-device.c @@ -2281,7 +2281,7 @@ _public_ int sd_device_trigger_with_uuid( _public_ int sd_device_open(sd_device *device, int flags) { _cleanup_close_ int fd = -1, fd2 = -1; - const char *devname, *subsystem = NULL; + const char *devname, *subsystem = NULL, *val = NULL; uint64_t q, diskseq = 0; struct stat st; dev_t devnum; @@ -2306,10 +2306,6 @@ _public_ int sd_device_open(sd_device *device, int flags) { if (r < 0 && r != -ENOENT) return r; - r = sd_device_get_diskseq(device, &diskseq); - if (r < 0 && r != -ENOENT) - return r; - fd = open(devname, FLAGS_SET(flags, O_PATH) ? flags : O_CLOEXEC|O_NOFOLLOW|O_PATH); if (fd < 0) return -errno; @@ -2327,6 +2323,16 @@ _public_ int sd_device_open(sd_device *device, int flags) { if (FLAGS_SET(flags, O_PATH)) return TAKE_FD(fd); + r = sd_device_get_property_value(device, "ID_IGNORE_DISKSEQ", &val); + if (r < 0 && r != -ENOENT) + return r; + + if (!val || parse_boolean(val) <= 0) { + r = sd_device_get_diskseq(device, &diskseq); + if (r < 0 && r != -ENOENT) + return r; + } + fd2 = open(FORMAT_PROC_FD_PATH(fd), flags); if (fd2 < 0) return -errno;