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blk-cgroup: remove redundant __GFP_NOWARN

Commit 16f5dfbc851b ("gfp: include __GFP_NOWARN in GFP_NOWAIT") made
GFP_NOWAIT implicitly include __GFP_NOWARN.

Therefore, explicit __GFP_NOWARN combined with GFP_NOWAIT (e.g.,
`GFP_NOWAIT | __GFP_NOWARN`) is now redundant. Let's clean up these
redundant flags across subsystems.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20250809141358.168781-1-rongqianfeng@vivo.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

authored by

Qianfeng Rong and committed by
Jens Axboe 196447c7 8f3e4e87

+3 -3
+3 -3
block/blk-cgroup.c
··· 394 394 395 395 /* allocate */ 396 396 if (!new_blkg) { 397 - new_blkg = blkg_alloc(blkcg, disk, GFP_NOWAIT | __GFP_NOWARN); 397 + new_blkg = blkg_alloc(blkcg, disk, GFP_NOWAIT); 398 398 if (unlikely(!new_blkg)) { 399 399 ret = -ENOMEM; 400 400 goto err_put_css; ··· 1467 1467 1468 1468 spin_lock_init(&blkcg->lock); 1469 1469 refcount_set(&blkcg->online_pin, 1); 1470 - INIT_RADIX_TREE(&blkcg->blkg_tree, GFP_NOWAIT | __GFP_NOWARN); 1470 + INIT_RADIX_TREE(&blkcg->blkg_tree, GFP_NOWAIT); 1471 1471 INIT_HLIST_HEAD(&blkcg->blkg_list); 1472 1472 #ifdef CONFIG_CGROUP_WRITEBACK 1473 1473 INIT_LIST_HEAD(&blkcg->cgwb_list); ··· 1630 1630 pd_prealloc = NULL; 1631 1631 } else { 1632 1632 pd = pol->pd_alloc_fn(disk, blkg->blkcg, 1633 - GFP_NOWAIT | __GFP_NOWARN); 1633 + GFP_NOWAIT); 1634 1634 } 1635 1635 1636 1636 if (!pd) {