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[v6,11/11] block/io: allow 64bit discard requests

Message ID 20210903102807.27127-12-vsementsov@virtuozzo.com (mailing list archive)
State New, archived
Headers show
Series 64bit block-layer: part II | expand

Commit Message

Vladimir Sementsov-Ogievskiy Sept. 3, 2021, 10:28 a.m. UTC 
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(-)
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Patch

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);