On 6/11/21 6:00 PM, John Baldwin wrote:
The branch main has been updated by jhb:
URL:
https://cgit.FreeBSD.org/src/commit/?id=8794846a91c5429c612ba939c61ebf8f1ff1a628
commit 8794846a91c5429c612ba939c61ebf8f1ff1a628
Author: John Baldwin <j...@freebsd.org>
AuthorDate: 2021-06-12 00:59:25 +0000
Commit: John Baldwin <j...@freebsd.org>
CommitDate: 2021-06-12 01:00:24 +0000
bhyve: Add support for handling disk resize events to block_if.
Allow clients of blockif to register a resize callback handler. When
a callback is registered, register an EVFILT_VNODE kevent watching the
backing store for a change in the file's attributes. If the size has
changed when the kevent fires, invoke the clients' callback.
Currently resize detection is limited to backing stores that support
EVFILT_VNODE kevents such as regular files.
Notably, this doesn't currently work for ZVOLs. Adding support for
NOTE_ATTR events for ZVOLs when they resize is all that is needed for
this to work woith ZVOLs.
--
John Baldwin
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