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18 Sep 2023 07:14:37 -0700 From: Johannes Thumshirn Date: Mon, 18 Sep 2023 07:14:30 -0700 Subject: [PATCH 1/4] btrfs: fix 64bit division in btrfs_insert_striped_mirrored_raid_extents MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20230918-rst-updates-v1-1-17686dc06859@wdc.com> References: <20230918-rst-updates-v1-0-17686dc06859@wdc.com> In-Reply-To: <20230918-rst-updates-v1-0-17686dc06859@wdc.com> To: Chris Mason , Josef Bacik , David Sterba Cc: Qu Wenru , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven , Johannes Thumshirn X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695046476; l=1280; i=johannes.thumshirn@wdc.com; s=20230613; h=from:subject:message-id; bh=U9qbeiDSJYQbLhJrQS7p5rADrDE7muaLT4aPGuFW2ps=; b=Ozf+ipDi8Mm7lWMbgnIb2J2c0Xah43hULZG86xBGVs9N4P1rloFXxWIWyhD3PxUWO5iq7boMl ZY4qteZM3HjCMd92H3qvA3wJDcSoSKQGvpEjKtOi7+d/G3Rh4NpBxC+ X-Developer-Key: i=johannes.thumshirn@wdc.com; a=ed25519; pk=TGmHKs78FdPi+QhrViEvjKIGwReUGCfa+3LEnGoR2KM= X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on morse.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (morse.vger.email [0.0.0.0]); Mon, 18 Sep 2023 08:43:16 -0700 (PDT) Fix modpost error due to 64bit division on 32bit systems in btrfs_insert_striped_mirrored_raid_extents. Cc: Geert Uytterhoeven Signed-off-by: Johannes Thumshirn --- fs/btrfs/raid-stripe-tree.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/raid-stripe-tree.c b/fs/btrfs/raid-stripe-tree.c index 85e8e389990f..0c0e620ed8b9 100644 --- a/fs/btrfs/raid-stripe-tree.c +++ b/fs/btrfs/raid-stripe-tree.c @@ -148,10 +148,10 @@ static int btrfs_insert_striped_mirrored_raid_extents( { struct btrfs_io_context *bioc; struct btrfs_io_context *rbioc; - const int nstripes = list_count_nodes(&ordered->bioc_list); - const int index = btrfs_bg_flags_to_raid_index(map_type); - const int substripes = btrfs_raid_array[index].sub_stripes; - const int max_stripes = trans->fs_info->fs_devices->rw_devices / substripes; + const size_t nstripes = list_count_nodes(&ordered->bioc_list); + const enum btrfs_raid_types index = btrfs_bg_flags_to_raid_index(map_type); + const u8 substripes = btrfs_raid_array[index].sub_stripes; + const int max_stripes = div_u64(trans->fs_info->fs_devices->rw_devices, substripes); int left = nstripes; int i; int ret = 0; -- 2.41.0