[GEDI] [PATCH v4 11/11] block/io: allow 64bit discard requests
Vladimir Sementsov-Ogievskiy
vsementsov at virtuozzo.com
Wed Mar 24 20:51:32 UTC 2021
Now, when all drivers are updated by 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 at virtuozzo.com>
---
block/io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/io.c b/block/io.c
index 129cfba68e..e3d0c1ae30 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3009,7 +3009,7 @@ 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
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