Dell - Internal Use - Confidential Thanks, The issue is that we run a single threaded process (we maintain our own threads) and use eventfd to driver both networking and AIO, so blocking on BLKDISCARD will block all IO done by the process. Menny -----Original Message----- From: Martin K. Petersen [mailto:martin.petersen@xxxxxxxxxx] Sent: Wednesday, October 23, 2013 11:43 AM To: Hamburger, Menny Cc: linux-scsi@xxxxxxxxxxxxxxx Subject: Re: BLKDISCARD and AIO >>>>> "Menny" == Menny Hamburger <Menny_Hamburger@xxxxxxxx> writes: Menny> I have a question regarding the use of BLKDISCARD ioctl in Menny> userland code: Is there currently a way to hook up with an Menny> asyncronous event that can be polled by userland when the Menny> operation completes? Not at this time, no. However, you can fork a child process to execute the ioctl and wait for that to complete. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
