diff options
Diffstat (limited to 'fs/block_dev.c')
| -rw-r--r-- | fs/block_dev.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/block_dev.c b/fs/block_dev.c index c3fa19bd64d..4eeb69a8873 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -852,6 +852,27 @@ struct block_device *open_by_devnum(dev_t dev, unsigned mode) EXPORT_SYMBOL(open_by_devnum); +/** + * revalidate_disk - wrapper for lower-level driver's revalidate_disk + * call-back + * + * @disk: struct gendisk to be revalidated + * + * This routine is a wrapper for lower-level driver's revalidate_disk + * call-backs. It is used to do common pre and post operations needed + * for all revalidate_disk operations. + */ +int revalidate_disk(struct gendisk *disk) +{ + int ret = 0; + + if (disk->fops->revalidate_disk) + ret = disk->fops->revalidate_disk(disk); + + return ret; +} +EXPORT_SYMBOL(revalidate_disk); + /* * This routine checks whether a removable media has been changed, * and invalidates all buffer-cache-entries in that case. This |