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From: Eric Blake <eblake@redhat.com>
To: qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>,
	Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
	"open list:Block I/O path" <qemu-block@nongnu.org>,
	Hanna Reitz <hreitz@redhat.com>,
	Stefan Hajnoczi <stefanha@redhat.com>
Subject: [PULL 12/20] block/io: allow 64bit discard requests
Date: Mon, 27 Sep 2021 16:55:37 -0500	[thread overview]
Message-ID: <20210927215545.3930309-13-eblake@redhat.com> (raw)
In-Reply-To: <20210927215545.3930309-1-eblake@redhat.com>

From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>

Now that all drivers are updated by the previous commit, we can drop
the last limiter on pdiscard path: INT_MAX in bdrv_co_pdiscard().

Now everything is prepared for implementing incredibly cool and fast
big-discard requests in NBD and qcow2. And any other driver which wants
it of course.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210903102807.27127-12-vsementsov@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
---
 block/io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/io.c b/block/io.c
index 3846e2ed961b..18d345a87af3 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3104,7 +3104,7 @@ int coroutine_fn bdrv_co_pdiscard(BdrvChild *child, int64_t offset,
         goto out;
     }

-    max_pdiscard = QEMU_ALIGN_DOWN(MIN_NON_ZERO(bs->bl.max_pdiscard, INT_MAX),
+    max_pdiscard = QEMU_ALIGN_DOWN(MIN_NON_ZERO(bs->bl.max_pdiscard, INT64_MAX),
                                    align);
     assert(max_pdiscard >= bs->bl.request_alignment);

-- 
2.31.1



  parent reply	other threads:[~2021-09-27 22:10 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-27 21:55 [PULL 00/20] NBD patches through 2021-09-27 Eric Blake
2021-09-27 21:55 ` [PULL 01/20] qemu-nbd: Change default cache mode to writeback Eric Blake
2021-09-27 21:55 ` [PULL 02/20] block/io: bring request check to bdrv_co_(read, write)v_vmstate Eric Blake
2021-09-27 21:55 ` [PULL 03/20] qcow2: check request on vmstate save/load path Eric Blake
2021-09-27 21:55 ` [PULL 04/20] block: use int64_t instead of uint64_t in driver read handlers Eric Blake
2021-09-27 21:55 ` [PULL 05/20] block: use int64_t instead of uint64_t in driver write handlers Eric Blake
2021-09-27 21:55 ` [PULL 06/20] block: use int64_t instead of uint64_t in copy_range driver handlers Eric Blake
2021-09-27 21:55 ` [PULL 07/20] block: make BlockLimits::max_pwrite_zeroes 64bit Eric Blake
2021-09-27 21:55 ` [PULL 08/20] block: use int64_t instead of int in driver write_zeroes handlers Eric Blake
2021-09-27 21:55 ` [PULL 09/20] block/io: allow 64bit write-zeroes requests Eric Blake
2021-09-27 21:55 ` [PULL 10/20] block: make BlockLimits::max_pdiscard 64bit Eric Blake
2021-09-27 21:55 ` [PULL 11/20] block: use int64_t instead of int in driver discard handlers Eric Blake
2021-09-27 21:55 ` Eric Blake [this message]
2021-09-27 21:55 ` [PULL 13/20] nbd/server: Allow LIST_META_CONTEXT without STRUCTURED_REPLY Eric Blake
2021-09-27 21:55 ` [PULL 14/20] nbd/client-connection: nbd_co_establish_connection(): fix non set errp Eric Blake
2021-09-27 21:55 ` [PULL 15/20] block/nbd: nbd_channel_error() shutdown channel unconditionally Eric Blake
2021-09-27 21:55 ` [PULL 16/20] block/nbd: move nbd_recv_coroutines_wake_all() up Eric Blake
2021-09-27 21:55 ` [PULL 17/20] block/nbd: refactor nbd_recv_coroutines_wake_all() Eric Blake
2021-09-27 21:55 ` [PULL 18/20] block/nbd: drop connection_co Eric Blake
2022-02-02 11:49   ` Fabian Ebner
2022-02-02 13:53     ` Eric Blake
2022-02-02 14:21       ` Hanna Reitz
2022-02-03  8:49         ` Fabian Ebner
2021-09-27 21:55 ` [PULL 19/20] block/nbd: check that received handle is valid Eric Blake
2021-09-27 21:55 ` [PULL 20/20] nbd/server: Add --selinux-label option Eric Blake
2021-09-29  8:59 ` [PULL 00/20] NBD patches through 2021-09-27 Peter Maydell
2021-09-29 12:40   ` Paolo Bonzini
2021-09-29 13:58     ` Richard Henderson
2021-09-29 15:03       ` Paolo Bonzini
2021-09-29 18:29         ` Eric Blake
2021-09-29 19:14           ` Richard W.M. Jones
2021-09-30  8:29           ` Daniel P. Berrangé
2021-09-30  8:45           ` Richard W.M. Jones
2021-09-30 14:27             ` Richard Henderson
2021-09-30 14:37               ` Richard W.M. Jones

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