On Tue, Mar 16 2010, Alan Stern wrote: > Jens and Al: > > Simple testing seems to show that when a program closes a file > descriptor for a block device file, the release method in the device > driver's block_device_operations structure doesn't get called (and the > close(2) system call doesn't return) until all the dirty pages for that > device have been written out. > > Can anyone confirm that this always happens? Where in the kernel > source is this handled? Alan, see fs/block_dev.c:__blkdev_put(). The last put of the device will sync the device before calling fops->release(). -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
