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[PULL 12/20] block/io: allow 64bit discard requests
From: |
Eric Blake |
Subject: |
[PULL 12/20] block/io: allow 64bit discard requests |
Date: |
Mon, 27 Sep 2021 16:55:37 -0500 |
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
- [PULL 01/20] qemu-nbd: Change default cache mode to writeback, (continued)
- [PULL 01/20] qemu-nbd: Change default cache mode to writeback, Eric Blake, 2021/09/27
- [PULL 02/20] block/io: bring request check to bdrv_co_(read, write)v_vmstate, Eric Blake, 2021/09/27
- [PULL 03/20] qcow2: check request on vmstate save/load path, Eric Blake, 2021/09/27
- [PULL 05/20] block: use int64_t instead of uint64_t in driver write handlers, Eric Blake, 2021/09/27
- [PULL 06/20] block: use int64_t instead of uint64_t in copy_range driver handlers, Eric Blake, 2021/09/27
- [PULL 10/20] block: make BlockLimits::max_pdiscard 64bit, Eric Blake, 2021/09/27
- [PULL 11/20] block: use int64_t instead of int in driver discard handlers, Eric Blake, 2021/09/27
- [PULL 04/20] block: use int64_t instead of uint64_t in driver read handlers, Eric Blake, 2021/09/27
- [PULL 07/20] block: make BlockLimits::max_pwrite_zeroes 64bit, Eric Blake, 2021/09/27
- [PULL 09/20] block/io: allow 64bit write-zeroes requests, Eric Blake, 2021/09/27
- [PULL 12/20] block/io: allow 64bit discard requests,
Eric Blake <=
- [PULL 13/20] nbd/server: Allow LIST_META_CONTEXT without STRUCTURED_REPLY, Eric Blake, 2021/09/27
- [PULL 15/20] block/nbd: nbd_channel_error() shutdown channel unconditionally, Eric Blake, 2021/09/27
- [PULL 18/20] block/nbd: drop connection_co, Eric Blake, 2021/09/27
- [PULL 17/20] block/nbd: refactor nbd_recv_coroutines_wake_all(), Eric Blake, 2021/09/27
- [PULL 08/20] block: use int64_t instead of int in driver write_zeroes handlers, Eric Blake, 2021/09/27
- [PULL 14/20] nbd/client-connection: nbd_co_establish_connection(): fix non set errp, Eric Blake, 2021/09/27
- [PULL 16/20] block/nbd: move nbd_recv_coroutines_wake_all() up, Eric Blake, 2021/09/27
- [PULL 19/20] block/nbd: check that received handle is valid, Eric Blake, 2021/09/27
- [PULL 20/20] nbd/server: Add --selinux-label option, Eric Blake, 2021/09/27
- Re: [PULL 00/20] NBD patches through 2021-09-27, Peter Maydell, 2021/09/29