From: Ming Lei <ming.lei@redhat.com>
Date: Fri, 16 Jan 2026 14:18:35 +0000 (+0800)
Subject: ublk: prepare for not tracking task context for command batch
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7ba62f5969defbab7df47c0016ffd4dedf30950a;p=thirdparty%2Fkernel%2Flinux.git

ublk: prepare for not tracking task context for command batch

batch io is designed to be independent of task context, and we will not
track task context for batch io feature.

Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index f6a4b222c71a4..0f9fcd16258b2 100644
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -2423,7 +2423,10 @@ static int __ublk_fetch(struct io_uring_cmd *cmd, struct ublk_device *ub,
 
 	ublk_fill_io_cmd(io, cmd);
 
-	WRITE_ONCE(io->task, get_task_struct(current));
+	if (ublk_dev_support_batch_io(ub))
+		WRITE_ONCE(io->task, NULL);
+	else
+		WRITE_ONCE(io->task, get_task_struct(current));
 	ublk_mark_io_ready(ub);
 
 	return 0;