Linux-Block Archive on lore.kernel.org
 help / color / Atom feed
* [PATCHSET v2] io_uring: support fileset add/remove/modify
@ 2019-10-04 16:22 Jens Axboe
  2019-10-04 16:22 ` [PATCH 1/2] io_uring: allow sparse fixed file sets Jens Axboe
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Jens Axboe @ 2019-10-04 16:22 UTC (permalink / raw)
  To: linux-block; +Cc: jmoyer

Currently we only support registrering a fixed file set. If changes need
to be made to that set, the application must unregister the existing set
first, then register a new one.

This patchset adds support for sparse file sets (patch 1), which means
the application can register a fileset with room for expansion. This is
done through having unregistered slots use fd == -1.

On top of that, we can add IORING_REGISTER_FILES_UPDATE. This allows
modifying the existing file set through:

- Replacing empty slots with valid file descriptors
- Replacing valid descriptors with an empty slot
- Modifying an existing slot, replacing a file descriptor with a new one

-- 
Jens Axboe



^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, back to index

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-10-04 16:22 [PATCHSET v2] io_uring: support fileset add/remove/modify Jens Axboe
2019-10-04 16:22 ` [PATCH 1/2] io_uring: allow sparse fixed file sets Jens Axboe
2019-10-04 16:22 ` [PATCH 2/2] io_uring: add support for IORING_REGISTER_FILES_UPDATE Jens Axboe
2019-10-04 18:17 ` [PATCHSET v2] io_uring: support fileset add/remove/modify Jeff Moyer
2019-10-04 18:52   ` Jens Axboe

Linux-Block Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-block/0 linux-block/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-block linux-block/ https://lore.kernel.org/linux-block \
		linux-block@vger.kernel.org
	public-inbox-index linux-block

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-block


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git