From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793211732; b=xKaPqT5CA7YbXAGk6l9K7Rp8vgfjiLg9jOX4u4frC2TWQZvdoV3TcmibH5oiYBj1ed7w A4//bBEHIVw7ZX/1cchaWCQSTWeDjiUs/7CZOv+7VPAkgzA3vDDKyE2UHo44cuPGLN2jW aQ0Z0/g8TNBuUGJyzrpWY+C/gRoscqkkBcrWK/xLAgJtmUeKpi7S8boXuBAzkeWwBy3ua 5KEjfrtUzsis9z8/WeH8GY6yOn4BtBDUMYUMc2yC4DQjYxUGg+i7toJnteTWIWobLir9K YQilrvravmNKbstt7bi9UZ4As4fHskWjvFDxNPCfZ4DmxsRcTiZNW1qvamOlIBpHmSg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793211732; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=4d9KtBMhsx2zc1viskYthfSKxckmEhlQFftfsgkfjjo=; b=U2Fdh9PlALE1Oq4edy4ePRvPo7zNe9SGh36HpMGz5GkER+vh/tldEa1kwLwLD44LVs6h KrxVo167yIMCxy+cuS5w58EzmYCEHa/Idv7q6Ht2x+a3Wbpm4L7AdWCXKA7HJFB4sGM3N uByLH2LlysXZqBuQHgxEiO+Gag6Og6/GS9romuSV4yPvSGbVPBbyj1mgUjOzKLTZMogjW AYvbXUknVwO5ze324UufSRv0HaXpFLMaSW+c2JdP+PsQ0EvZhsttzi9f1O23Dj0u4m7mA 5MbZPBUrrpSxL3DughY9no1wgRBATO6YAyjCIpgBwf0dhh4zzN4k7nC2sw8+XfhrbRA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=GJqEKdkE; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 99484606A31C; Wed, 28 Oct 2026 18:22:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=GJqEKdkE Received: by smtp.kernel.org (Postfix) with ESMTPSA id A86641F01825; Wed, 28 Oct 2026 18:22:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793211732; bh=4d9KtBMhsx2zc1viskYthfSKxckmEhlQFftfsgkfjjo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GJqEKdkE3q64mkbVIRuxkHAxaxrJyfXnMtdBdrX4RYpi+yIFOT86zbUb7H9W/zBk5 YMKVFTBZDXGfL1al79he74UNlkrq+VkyFKAqU5H09lClGN2pC07dZWhyjbgUtkk16E 65pdmNvaFR7ut8tfIML2nX0aEfcd92I53WgnYzv0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dave Chinner , Carlos Maiolino , Carlos Maiolino , Siddh Raman Pant , Sasha Levin Subject: [PATCH 5.15 464/571] xfs: factor out stale buffer item completion Date: Wed, 28 Oct 2026 18:00:11 +0100 Message-ID: <20261028170019.032718130@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170008.009143722@linuxfoundation.org> References: <20261028170008.009143722@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Chinner [ Upstream commit 816c330b605c3f4813c0dc0ab5af5cce17ff06b3 ] The stale buffer item completion handling is currently only done from BLI unpinning. We need to perform this function from where-ever the last reference to the BLI is dropped, so first we need to factor this code out into a helper. Signed-off-by: Dave Chinner Reviewed-by: Carlos Maiolino Signed-off-by: Carlos Maiolino Signed-off-by: Siddh Raman Pant Signed-off-by: Sasha Levin --- fs/xfs/xfs_buf_item.c | 60 ++++++++++++++++++++++++++----------------- 1 file changed, 37 insertions(+), 23 deletions(-) diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index ebcaccc4ad66b..9c3918a63a23b 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -540,6 +540,42 @@ xfs_buf_item_pin( atomic_inc(&bip->bli_buf->b_pin_count); } +/* + * For a stale BLI, process all the necessary completions that must be + * performed when the final BLI reference goes away. The buffer will be + * referenced and locked here - we return to the caller with the buffer still + * referenced and locked for them to finalise processing of the buffer. + */ +static void +xfs_buf_item_finish_stale( + struct xfs_buf_log_item *bip) +{ + struct xfs_buf *bp = bip->bli_buf; + struct xfs_log_item *lip = &bip->bli_item; + + ASSERT(bip->bli_flags & XFS_BLI_STALE); + ASSERT(xfs_buf_islocked(bp)); + ASSERT(bp->b_flags & XBF_STALE); + ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); + ASSERT(list_empty(&lip->li_trans)); + ASSERT(!bp->b_transp); + + if (bip->bli_flags & XFS_BLI_STALE_INODE) { + xfs_buf_item_done(bp); + xfs_buf_inode_iodone(bp); + ASSERT(list_empty(&bp->b_li_list)); + return; + } + + /* + * We may or may not be on the AIL here, xfs_trans_ail_delete() will do + * the right thing regardless of the situation in which we are called. + */ + xfs_trans_ail_delete(lip, SHUTDOWN_LOG_IO_ERROR); + xfs_buf_item_relse(bip); + ASSERT(bp->b_log_item == NULL); +} + /* * This is called to unpin the buffer associated with the buf log item which was * previously pinned with a call to xfs_buf_item_pin(). We enter this function @@ -589,13 +625,6 @@ xfs_buf_item_unpin( } if (stale) { - ASSERT(bip->bli_flags & XFS_BLI_STALE); - ASSERT(xfs_buf_islocked(bp)); - ASSERT(bp->b_flags & XBF_STALE); - ASSERT(bip->__bli_format.blf_flags & XFS_BLF_CANCEL); - ASSERT(list_empty(&lip->li_trans)); - ASSERT(!bp->b_transp); - trace_xfs_buf_item_unpin_stale(bip); /* @@ -606,22 +635,7 @@ xfs_buf_item_unpin( * processing is complete. */ xfs_buf_rele(bp); - - /* - * If we get called here because of an IO error, we may or may - * not have the item on the AIL. xfs_trans_ail_delete() will - * take care of that situation. xfs_trans_ail_delete() drops - * the AIL lock. - */ - if (bip->bli_flags & XFS_BLI_STALE_INODE) { - xfs_buf_item_done(bp); - xfs_buf_inode_iodone(bp); - ASSERT(list_empty(&bp->b_li_list)); - } else { - xfs_trans_ail_delete(lip, SHUTDOWN_LOG_IO_ERROR); - xfs_buf_item_relse(bip); - ASSERT(bp->b_log_item == NULL); - } + xfs_buf_item_finish_stale(bip); xfs_buf_relse(bp); return; } -- 2.53.0