[Qemu-devel] [PATCH v2 14/19] qcow2: Switch .bdrv_co_discard() to byte-based

[Eric Blake]

Another step towards killing off sector-based block APIs.

Signed-off-by: Eric Blake <address@hidden>
Reviewed-by: Stefan Hajnoczi <address@hidden>
---
 block/qcow2.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/block/qcow2.c b/block/qcow2.c
index a6bca73..d620d0a 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2479,15 +2479,15 @@ static coroutine_fn int 
qcow2_co_pwrite_zeroes(BlockDriverState *bs,
     return ret;
 }

-static coroutine_fn int qcow2_co_discard(BlockDriverState *bs,
-    int64_t sector_num, int nb_sectors)
+static coroutine_fn int qcow2_co_pdiscard(BlockDriverState *bs,
+                                          int64_t offset, int count)
 {
     int ret;
     BDRVQcow2State *s = bs->opaque;

     qemu_co_mutex_lock(&s->lock);
-    ret = qcow2_discard_clusters(bs, sector_num << BDRV_SECTOR_BITS,
-        nb_sectors, QCOW2_DISCARD_REQUEST, false);
+    ret = qcow2_discard_clusters(bs, offset, count >> BDRV_SECTOR_BITS,
+                                 QCOW2_DISCARD_REQUEST, false);
     qemu_co_mutex_unlock(&s->lock);
     return ret;
 }
@@ -3410,7 +3410,7 @@ BlockDriver bdrv_qcow2 = {
     .bdrv_co_flush_to_os    = qcow2_co_flush_to_os,

     .bdrv_co_pwrite_zeroes  = qcow2_co_pwrite_zeroes,
-    .bdrv_co_discard        = qcow2_co_discard,
+    .bdrv_co_pdiscard       = qcow2_co_pdiscard,
     .bdrv_truncate          = qcow2_truncate,
     .bdrv_write_compressed  = qcow2_write_compressed,
     .bdrv_make_empty        = qcow2_make_empty,
-- 
2.5.5