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From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-block@nongnu.org
Cc: qemu-devel@nongnu.org, integration@gluster.org,
	kraxel@redhat.com, idryomov@gmail.com, berto@igalia.com,
	philmd@redhat.com, eblake@redhat.com, pl@kamp.de,
	ronniesahlberg@gmail.com, fam@euphon.net, sw@weilnetz.de,
	vsementsov@virtuozzo.com, jsnow@redhat.com, stefanha@redhat.com,
	pbonzini@redhat.com, pavel.dovgaluk@ispras.ru, ari@tuxera.com,
	hreitz@redhat.com, kwolf@redhat.com
Subject: [PATCH v6 11/11] block/io: allow 64bit discard requests
Date: Fri,  3 Sep 2021 13:28:07 +0300	[thread overview]
Message-ID: <20210903102807.27127-12-vsementsov@virtuozzo.com> (raw)
In-Reply-To: <20210903102807.27127-1-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>
---
 block/io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/io.c b/block/io.c
index a5ba1f4cf2..1e9a3a1752 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3042,7 +3042,7 @@ 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);
 
-- 
2.29.2



  parent reply	other threads:[~2021-09-03 10:39 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-03 10:27 [PATCH v6 00/11] 64bit block-layer: part II Vladimir Sementsov-Ogievskiy
2021-09-03 10:27 ` [PATCH v6 01/11] block/io: bring request check to bdrv_co_(read, write)v_vmstate Vladimir Sementsov-Ogievskiy via
2021-09-03 10:27 ` [PATCH v6 02/11] qcow2: check request on vmstate save/load path Vladimir Sementsov-Ogievskiy
2021-09-03 10:27 ` [PATCH v6 03/11] block: use int64_t instead of uint64_t in driver read handlers Vladimir Sementsov-Ogievskiy
2021-09-03 21:30   ` Eric Blake
2021-09-03 10:28 ` [PATCH v6 04/11] block: use int64_t instead of uint64_t in driver write handlers Vladimir Sementsov-Ogievskiy
2021-09-03 21:34   ` Eric Blake
2021-09-03 10:28 ` [PATCH v6 05/11] block: use int64_t instead of uint64_t in copy_range driver handlers Vladimir Sementsov-Ogievskiy
2021-09-03 10:28 ` [PATCH v6 06/11] block: make BlockLimits::max_pwrite_zeroes 64bit Vladimir Sementsov-Ogievskiy
2021-09-23 19:58   ` Eric Blake
2021-09-03 10:28 ` [PATCH v6 07/11] block: use int64_t instead of int in driver write_zeroes handlers Vladimir Sementsov-Ogievskiy
2021-09-23 20:33   ` Eric Blake
2021-09-23 20:53     ` Eric Blake
2021-09-23 21:50     ` Vladimir Sementsov-Ogievskiy
2021-09-03 10:28 ` [PATCH v6 08/11] block/io: allow 64bit write-zeroes requests Vladimir Sementsov-Ogievskiy
2021-09-03 10:28 ` [PATCH v6 09/11] block: make BlockLimits::max_pdiscard 64bit Vladimir Sementsov-Ogievskiy
2021-09-03 10:28 ` [PATCH v6 10/11] block: use int64_t instead of int in driver discard handlers Vladimir Sementsov-Ogievskiy
2021-09-23 20:58   ` Eric Blake
2021-09-03 10:28 ` Vladimir Sementsov-Ogievskiy [this message]
2021-09-22  7:52 ` [PATCH v6 00/11] 64bit block-layer: part II Vladimir Sementsov-Ogievskiy
2021-09-22 13:13   ` Eric Blake

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