linux-kernel - Re: [PATCH] block: plug attempts to batch allocate tags multiple times

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Message-Id: <20250924053436.10919-1-xue01.he@samsung.com>
Date: Wed, 24 Sep 2025 05:34:36 +0000
From: Xue He <xue01.he@...sung.com>
To: akpm@...ux-foundation.org, axboe@...nel.dk
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] block: plug attempts to batch allocate tags multiple
 times

>+		if (val == (1UL << (map_depth - 1)) - 1) {
>+			if (!sbitmap_deferred_clear(map, map_depth, 0, 0))
>+				goto next;
>+		}
> 
> 		nr = find_first_zero_bit(&val, map_depth);
> 		if (nr + nr_tags <= map_depth) {

Hi, just a kindly ping...