From patchwork Fri Dec 13 12:25:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kemeng Shi X-Patchwork-Id: 13906407 Received: from dggsgout12.his.huawei.com (dggsgout12.his.huawei.com [45.249.212.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E3EC713A26D; Fri, 13 Dec 2024 03:27:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.56 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734060436; cv=none; b=hpfHtIYwC1b1E78pLgnIhmm0nwiGvcMvoTySJSYiSMKL3v4or1884T5ogb9vMZWPD6mCG+B/C5YwaHAtHGsAoL0IOcnt0FBTM/syF9OdbLUOJBFt101CNAfCLLyIXC4cdT+4mOPmXEUf1EQqRENlkNzbVWBzEyqCszEUhlxfOSk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734060436; c=relaxed/simple; bh=tyU/E7IdI0PoI6xnGSKBcD21KiHHsKL6ZTo0hZJt4KA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Y4vxVdxBCh1X+ewMKLo/y/AVhOTMNpbxSPjhNQHSq2jZp2Kt+roaNvEZescDbllGJDjT7cSRfXxHIYuv8RCadhAppNoSDmIgSau6DffPa+DEV+Ui6aQEHk+FEWdSATtTLh9mOPwX98WCVRYhhf0lVANRdJrQlUwL4tBMmx9r12o= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.56 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.216]) by dggsgout12.his.huawei.com (SkyGuard) with ESMTP id 4Y8ZWb67Slz4f3jrp; Fri, 13 Dec 2024 11:26:51 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 307181A018C; Fri, 13 Dec 2024 11:27:11 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.101.6]) by APP4 (Coremail) with SMTP id gCh0CgBHcISMqVtnfJ3KEQ--.55430S7; Fri, 13 Dec 2024 11:27:11 +0800 (CST) From: Kemeng Shi To: akpm@linux-foundation.org, willy@infradead.org Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 5/5] Xarray: use xa_mark_t in xas_squash_marks() to keep code consistent Date: Fri, 13 Dec 2024 20:25:23 +0800 Message-Id: <20241213122523.12764-6-shikemeng@huaweicloud.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20241213122523.12764-1-shikemeng@huaweicloud.com> References: <20241213122523.12764-1-shikemeng@huaweicloud.com> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: gCh0CgBHcISMqVtnfJ3KEQ--.55430S7 X-Coremail-Antispam: 1UD129KBjvJXoW7Cw1UuF13JryrGFWxCFyfWFg_yoW8GrWkpF 97C3s8Ka1xA3WUKrnFvan7t345Ja1kK3yjyr4xGwnayFZ8Gr1Yqay7tryjqFnxGFy8ZFy3 Cr1Fg3y5Wa1UZw7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPIb4IE77IF4wAFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k2 6cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M280x2IEY4vEnII2IxkI6r1a6r45M2 8IrcIa0xkI8VA2jI8067AKxVWUAVCq3wA2048vs2IY020Ec7CjxVAFwI0_Xr0E3s1l8cAv FVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVW5JVW7Jw A2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVWxJVW8Jr1l84ACjcxK6I8E87Iv67AKxVW0oVCq 3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_GcCE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8w Aqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE 14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY1x0262kKe7 AKxVWUAVWUtwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02 F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_JF0_Jw 1lIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUCVW8JwCI42IY6xIIjxv20xvEc7Cj xVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r 1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07ja g4hUUUUU= X-CM-SenderInfo: 5vklyvpphqwq5kxd4v5lfo033gof0z/ Besides xas_squash_marks(), all functions use xa_mark_t type to iterate all possible marks. Use xa_mark_t in xas_squash_marks() to keep code consistent. Signed-off-by: Kemeng Shi --- lib/xarray.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/lib/xarray.c b/lib/xarray.c index 4231af284bd8..a74795911f1c 100644 --- a/lib/xarray.c +++ b/lib/xarray.c @@ -125,16 +125,20 @@ static inline void node_mark_all(struct xa_node *node, xa_mark_t mark) */ static void xas_squash_marks(const struct xa_state *xas) { - unsigned int mark = 0; + xa_mark_t mark = 0; unsigned int limit = xas->xa_offset + xas->xa_sibs + 1; - do { - unsigned long *marks = xas->xa_node->marks[mark]; - if (find_next_bit(marks, limit, xas->xa_offset + 1) == limit) - continue; - __set_bit(xas->xa_offset, marks); - bitmap_clear(marks, xas->xa_offset + 1, xas->xa_sibs); - } while (mark++ != (__force unsigned)XA_MARK_MAX); + for (;;) { + unsigned long *marks = node_marks(xas->xa_node, mark); + + if (find_next_bit(marks, limit, xas->xa_offset + 1) != limit) { + __set_bit(xas->xa_offset, marks); + bitmap_clear(marks, xas->xa_offset + 1, xas->xa_sibs); + } + if (mark == XA_MARK_MAX) + break; + mark_inc(mark); + } } /* extracts the offset within this node from the index */