From: Hanna Reitz <hreitz@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
Emanuele Giuseppe Esposito <eesposit@redhat.com>,
qemu-block@nongnu.org
Cc: "Kevin Wolf" <kwolf@redhat.com>, "Fam Zheng" <fam@euphon.net>,
"Vladimir Sementsov-Ogievskiy" <vsementsov@virtuozzo.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Juan Quintela" <quintela@redhat.com>,
"Eric Blake" <eblake@redhat.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
qemu-devel@nongnu.org, "Markus Armbruster" <armbru@redhat.com>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"John Snow" <jsnow@redhat.com>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [PATCH v4 00/25] block layer: split block APIs in global state and I/O
Date: Thu, 18 Nov 2021 16:22:08 +0100 [thread overview]
Message-ID: <5ece8cb2-4e53-2aed-a583-7273b261f85c@redhat.com> (raw)
In-Reply-To: <86f27763-60d0-0549-9d5e-25107d1da4bd@redhat.com>
On 18.11.21 15:04, Paolo Bonzini wrote:
> On 11/15/21 17:03, Hanna Reitz wrote:
>> and second fuse_do_truncate(), which calls blk_set_perm().
>
> Here it seems that a non-growable export is still growable as long as
> nobody is watching. :) Is this the desired behavior?
Yes, absolutely. “Growable” is documented to mean that writes after the
end of the exported file will grow it to fit. Explicit truncating is
something else, and I believe we should allow it on all writable
exports. (Of course only when other potential users of the block node
in question allow it to be resized, but that’s what the permission is for.)
Hanna
prev parent reply other threads:[~2021-11-18 15:23 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 10:17 [PATCH v4 00/25] block layer: split block APIs in global state and I/O Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 01/25] main-loop.h: introduce qemu_in_main_thread() Emanuele Giuseppe Esposito
2021-10-25 11:33 ` Philippe Mathieu-Daudé
2021-10-25 10:17 ` [PATCH v4 02/25] include/block/block: split header into I/O and global state API Emanuele Giuseppe Esposito
2021-10-25 11:37 ` Philippe Mathieu-Daudé
2021-10-25 12:22 ` Emanuele Giuseppe Esposito
2021-11-11 15:00 ` Hanna Reitz
2021-11-15 12:08 ` Emanuele Giuseppe Esposito
2021-11-12 12:25 ` Hanna Reitz
2021-11-16 14:00 ` Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 03/25] assertions for block " Emanuele Giuseppe Esposito
2021-11-11 16:32 ` Hanna Reitz
2021-11-15 12:27 ` Emanuele Giuseppe Esposito
2021-11-15 15:27 ` Hanna Reitz
2021-11-12 11:31 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 04/25] include/sysemu/block-backend: split header into I/O and global state (GS) API Emanuele Giuseppe Esposito
2021-11-12 10:23 ` Hanna Reitz
2021-11-16 10:16 ` Emanuele Giuseppe Esposito
2021-11-12 12:30 ` Hanna Reitz
2021-11-16 14:24 ` Emanuele Giuseppe Esposito
2021-11-16 15:07 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 05/25] block/block-backend.c: assertions for block-backend Emanuele Giuseppe Esposito
2021-11-12 11:01 ` Hanna Reitz
2021-11-16 10:15 ` Emanuele Giuseppe Esposito
2021-11-16 12:29 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 06/25] include/block/block_int: split header into I/O and global state API Emanuele Giuseppe Esposito
2021-11-12 12:17 ` Hanna Reitz
2021-11-16 10:24 ` Emanuele Giuseppe Esposito
2021-11-16 12:30 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 07/25] assertions for block_int " Emanuele Giuseppe Esposito
2021-11-12 13:51 ` Hanna Reitz
2021-11-16 15:43 ` Emanuele Giuseppe Esposito
2021-11-16 16:46 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 08/25] block: introduce assert_bdrv_graph_writable Emanuele Giuseppe Esposito
2021-11-12 14:40 ` Hanna Reitz
2021-11-18 9:55 ` Emanuele Giuseppe Esposito
2021-11-18 10:24 ` Emanuele Giuseppe Esposito
2021-11-18 15:17 ` Hanna Reitz
2021-11-19 8:55 ` Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 09/25] include/block/blockjob_int.h: split header into I/O and GS API Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 10/25] assertions for blockjob_int.h Emanuele Giuseppe Esposito
2021-11-12 15:17 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 11/25] include/block/blockjob.h: global state API Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 12/25] assertions for blockob.h " Emanuele Giuseppe Esposito
2021-11-12 15:26 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 13/25] include/sysemu/blockdev.h: move drive_add and inline drive_def Emanuele Giuseppe Esposito
2021-11-12 15:41 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 14/25] include/systemu/blockdev.h: global state API Emanuele Giuseppe Esposito
2021-10-28 15:48 ` Stefan Hajnoczi
2021-11-12 15:46 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 15/25] assertions for blockdev.h " Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 16/25] include/block/snapshot: global state API + assertions Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 17/25] block/copy-before-write.h: " Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 18/25] block/coroutines: I/O API Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 19/25] block_int-common.h: split function pointers in BlockDriver Emanuele Giuseppe Esposito
2021-11-15 12:00 ` Hanna Reitz
2021-11-18 12:42 ` Emanuele Giuseppe Esposito
2021-10-25 10:17 ` [PATCH v4 20/25] block_int-common.h: assertion in the callers of BlockDriver function pointers Emanuele Giuseppe Esposito
2021-11-15 12:48 ` Hanna Reitz
2021-11-15 14:15 ` Hanna Reitz
2021-11-17 11:33 ` Emanuele Giuseppe Esposito
2021-11-17 12:51 ` Hanna Reitz
2021-11-17 13:09 ` Emanuele Giuseppe Esposito
2021-11-17 13:34 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 21/25] block_int-common.h: split function pointers in BdrvChildClass Emanuele Giuseppe Esposito
2021-11-15 14:36 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 22/25] block_int-common.h: assertions in the callers of BdrvChildClass function pointers Emanuele Giuseppe Esposito
2021-11-15 14:48 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 23/25] block-backend-common.h: split function pointers in BlockDevOps Emanuele Giuseppe Esposito
2021-10-25 14:10 ` Philippe Mathieu-Daudé
2021-10-25 10:17 ` [PATCH v4 24/25] job.h: split function pointers in JobDriver Emanuele Giuseppe Esposito
2021-11-15 15:11 ` Hanna Reitz
2021-11-17 13:43 ` Emanuele Giuseppe Esposito
2021-11-17 13:44 ` Hanna Reitz
2021-10-25 10:17 ` [PATCH v4 25/25] job.h: assertions in the callers of JobDriver funcion pointers Emanuele Giuseppe Esposito
2021-10-25 14:09 ` [PATCH v4 00/25] block layer: split block APIs in global state and I/O Philippe Mathieu-Daudé
2021-10-28 15:45 ` Stefan Hajnoczi
2021-10-28 15:49 ` Stefan Hajnoczi
2021-11-15 16:03 ` Hanna Reitz
2021-11-15 16:11 ` Daniel P. Berrangé
2021-11-18 13:50 ` Paolo Bonzini
2021-11-18 15:31 ` Hanna Reitz
2021-11-19 3:13 ` Paolo Bonzini
2021-11-19 10:42 ` Emanuele Giuseppe Esposito
2021-11-18 14:04 ` Paolo Bonzini
2021-11-18 15:22 ` Hanna Reitz [this message]
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