diff options
Diffstat (limited to 'namedev.c')
| -rw-r--r-- | namedev.c | 48 |
1 files changed, 45 insertions, 3 deletions
@@ -602,6 +602,43 @@ static int match_place(struct config_device *dev, struct sysfs_class_device *cla return 0; } +static int whitelist_search(struct sysfs_class_device *class_dev) +{ + int i; + int list_size = 17; + int sysblock = 10; + + static char *list[] = { + "nb", + "ram", + "loop", + "fd", + "md", + "dos_cd", + "double", + "flash", + "msd", + "rflash", + "rom", + "rrom", + "sbpcd", + "pcd", + "pf", + "scd", + "ubd", + }; + + if (!strncmp(class_dev->path, "/sys/block", sysblock)) { + for (i=0; i < list_size; i++) { + if (!strncmp(class_dev->name, list[i], strlen(list[i]))) { + return 1; + } + } + } + + return 0; +} + static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_dev) { struct sysfs_device *sysfs_device; @@ -615,8 +652,8 @@ static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_de * all partitions have the symlink in its parent directory. * But we need to watch out for block devices that do not have parents, yet * look like a partition (fd0, loop0, etc.) They all do not have a device - * symlink yet. We do sit and spin on waiting for them right now, we should - * possibly have a whitelist for these devices here... + * symlink yet. We do sit and spin on waiting for them right now unless + * they happen to be in the whitelist in which case we exit. */ class_dev_parent = sysfs_get_classdev_parent(class_dev); if (class_dev_parent != NULL) @@ -626,8 +663,13 @@ static struct sysfs_device *get_sysfs_device(struct sysfs_class_device *class_de tspec.tv_nsec = 10000000; /* sleep 10 millisec */ loop = 10; while (loop--) { - if (udev_sleep) + if (udev_sleep) { + if (whitelist_search(class_dev)) { + sysfs_device = NULL; + goto exit; + } nanosleep(&tspec, NULL); + } if (class_dev_parent) sysfs_device = sysfs_get_classdev_device(class_dev_parent); |