Now that the block layer supports 64-bit operations (see commit 2800637a and friends, new to v6.2), we no longer have to self-fragment requests larger than 2G, reverting the workaround added in 890cbccb08 ("nbd: Fix large trim/zero requests", v5.1.0).
Signed-off-by: Eric Blake <ebl...@redhat.com> Message-Id: <20211117170230.1128262-3-ebl...@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- nbd/server.c | 23 +++-------------------- 1 file changed, 3 insertions(+), 20 deletions(-) diff --git a/nbd/server.c b/nbd/server.c index 74ba48709451..4630dd732250 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -2509,16 +2509,8 @@ static coroutine_fn int nbd_handle_request(NBDClient *client, if (request->flags & NBD_CMD_FLAG_FAST_ZERO) { flags |= BDRV_REQ_NO_FALLBACK; } - ret = 0; - /* FIXME simplify this when blk_pwrite_zeroes switches to 64-bit */ - while (ret >= 0 && request->len) { - int align = client->check_align ?: 1; - int len = MIN(request->len, QEMU_ALIGN_DOWN(BDRV_REQUEST_MAX_BYTES, - align)); - ret = blk_pwrite_zeroes(exp->common.blk, request->from, len, flags); - request->len -= len; - request->from += len; - } + ret = blk_pwrite_zeroes(exp->common.blk, request->from, request->len, + flags); return nbd_send_generic_reply(client, request->handle, ret, "writing to file failed", errp); @@ -2532,16 +2524,7 @@ static coroutine_fn int nbd_handle_request(NBDClient *client, "flush failed", errp); case NBD_CMD_TRIM: - ret = 0; - /* FIXME simplify this when blk_co_pdiscard switches to 64-bit */ - while (ret >= 0 && request->len) { - int align = client->check_align ?: 1; - int len = MIN(request->len, QEMU_ALIGN_DOWN(BDRV_REQUEST_MAX_BYTES, - align)); - ret = blk_co_pdiscard(exp->common.blk, request->from, len); - request->len -= len; - request->from += len; - } + ret = blk_co_pdiscard(exp->common.blk, request->from, request->len); if (ret >= 0 && request->flags & NBD_CMD_FLAG_FUA) { ret = blk_co_flush(exp->common.blk); } -- 2.33.1