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Tue, 28 Mar 2023 11:27:18 +0000 (GMT) Received: from eusmgms1.samsung.com (unknown [182.198.249.179]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20230328112718eusmtrp16f41b0a32e8b05be0788a2ac4a06450a~Qka43kbO80876308763eusmtrp1S; Tue, 28 Mar 2023 11:27:18 +0000 (GMT) X-AuditID: cbfec7f2-e8fff7000000251f-78-6422cf16dae4 Received: from eusmtip2.samsung.com ( [203.254.199.222]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id FD.19.08862.61FC2246; Tue, 28 Mar 2023 12:27:18 +0100 (BST) Received: from localhost (unknown [106.210.248.108]) by eusmtip2.samsung.com (KnoxPortal) with ESMTPA id 20230328112718eusmtip24e9e179b1b56e4e1504088728ba93515~Qka4o8oxA2590125901eusmtip29; Tue, 28 Mar 2023 11:27:18 +0000 (GMT) From: Pankaj Raghav To: martin@omnibond.com, axboe@kernel.dk, minchan@kernel.org, akpm@linux-foundation.org, hubcap@omnibond.com, willy@infradead.org, viro@zeniv.linux.org.uk, senozhatsky@chromium.org, brauner@kernel.org Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, mcgrof@kernel.org, linux-block@vger.kernel.org, gost.dev@samsung.com, linux-mm@kvack.org, devel@lists.orangefs.org, Pankaj Raghav Subject: [PATCH 1/5] zram: remove the call to page_endio in the bio end_io handler Date: Tue, 28 Mar 2023 13:27:12 +0200 Message-Id: <20230328112716.50120-2-p.raghav@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230328112716.50120-1-p.raghav@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrLKsWRmVeSWpSXmKPExsWy7djP87pi55VSDO5u0bWYs34Nm8Xqu/1s Fq8Pf2K02L95CpPFzQM7mSza7/YxWey9pW2xZ+9JFovLu+awWdxb85/V4uT6/8wWNyY8ZbRY 9vU9u8XnpS3sFrs3LmKzOP/3OKvF7x9z2BwEPWY3XGTx2LxCy+Py2VKPTas62Tw2fZrE7nFi xm8Wj4apt9g8ft2+w+rRt2UVo8fnTXIem568ZQrgjuKySUnNySxLLdK3S+DKWHXlNkvBae6K x1MdGhjPcXYxcnJICJhIfFm2j72LkYtDSGAFo8SkB+vYIJwvjBKnts9ngXA+M0p86m1nhmk5 ++EOVMtyRompb5ZDOS8ZJe43ngLq5+BgE9CSaOwEi4sInGGUWLy8EWwus8B9RolvL88zgYwS FgiRmPNyKSuIzSKgKvF/wxl2EJtXwFLi5uZdrBDr5CX2HzzLDDKUU8BKYtpvK4gSQYmTM5+w gNjMQCXNW2czg8yXEFjPKfHi4CdGiF4XiQdTf7BB2MISr45vYYewZSROT+5hgbCrJZ7e+A3V 3MIo0b9zPdgHEgLWEn1nckBMZgFNifW79CHKHSUeb9/JClHBJ3HjrSDECXwSk7ZNZ4YI80p0 tAlBVCtJ7Pz5BGqphMTlpjlQSz0kut6+Zp3AqDgLyTOzkDwzC2HvAkbmVYziqaXFuempxYZ5 qeV6xYm5xaV56XrJ+bmbGIEp8PS/4592MM599VHvECMTB+MhRgkOZiUR3s3eiilCvCmJlVWp RfnxRaU5qcWHGKU5WJTEebVtTyYLCaQnlqRmp6YWpBbBZJk4OKUamDLuB69miqjWil/8L32T YtEtqegLFncjF282WcVzwCV+x/SChPVvL7DV7WLcV9Sp0/ufn0P9xeQA261GCmJbc/QmBvnx 5jw4ybLS7rRwgO1s7jXPra84TGoRqJXJtVJv5P6uec3fKZUj6D3/wz3XHoezKt+5lPpTIlY6 VzIhLvsew6TG7nvKLtfNzofr8Uyr6G78U9U5MX+OpqvNCb/9f11qVcyZeTJ4vljVn/y8dNGX kguMZtVdrXGbw0MPmhzKlYx8O33b/38NXSXPpTf+KZ78S+bHiUleDM6iUsIiu952xL17p+nY 2SIYyjgz5fu+vTxaL1jehMb1p016co8lU/CJnKVHXOkF6wPvH15RYinOSDTUYi4qTgQAxT+M ovADAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrDIsWRmVeSWpSXmKPExsVy+t/xe7pi55VSDG5/ErGYs34Nm8Xqu/1s Fq8Pf2K02L95CpPFzQM7mSza7/YxWey9pW2xZ+9JFovLu+awWdxb85/V4uT6/8wWNyY8ZbRY 9vU9u8XnpS3sFrs3LmKzOP/3OKvF7x9z2BwEPWY3XGTx2LxCy+Py2VKPTas62Tw2fZrE7nFi xm8Wj4apt9g8ft2+w+rRt2UVo8fnTXIem568ZQrgjtKzKcovLUlVyMgvLrFVija0MNIztLTQ MzKx1DM0No+1MjJV0rezSUnNySxLLdK3S9DLWHXlNkvBae6Kx1MdGhjPcXYxcnJICJhInP1w h72LkYtDSGApo8TnA6+ZIRISErcXNjFC2MISf651sUEUPWeUmN/+Hcjh4GAT0JJo7ARrFhG4 wSix9ukvVhCHGaTo7r7XrCDdwgJBEuc+LQezWQRUJf5vOMMOYvMKWErc3LyLFWKDvMT+g2eZ QYZyClhJTPttBRIWAiq5euY9I0S5oMTJmU9YQGxmoPLmrbOZJzAKzEKSmoUktYCRaRWjSGpp cW56brGhXnFibnFpXrpecn7uJkZgtG479nPzDsZ5rz7qHWJk4mA8xCjBwawkwrvZWzFFiDcl sbIqtSg/vqg0J7X4EKMp0NkTmaVEk/OB6SKvJN7QzMDU0MTM0sDU0sxYSZzXs6AjUUggPbEk NTs1tSC1CKaPiYNTqoHJRfDAQtvep+LeO8qrU7//Z11v5VD4/Offx9Yb3X4ffHM6/qpwX0LV oQttD8xeebE1fPH7mcw87bx6RM+fWqb/LTH/5vAwyW74ql2xUNRb5Kqo17IXs/TtzTZd63uc 2ceyL0w4rLJZ3FpANqD64M3Le754C577/Ssp5pdt4s5gy8Alxi5HvS4aGpwM59m6Z/Op21r1 U1Q5ZGar5yhFc3TevFay6uzKpk/LAnf/mdb4YsG3uJ+d++63WWw4dHbTy8Jb03f/nSlgVLb/ bOyPE7NXXngvMe26p7qF6Z7bm9VK+M8u7HMW55+26N6xuVfyfV8dfXHzRitftIak7Sv+BbfZ p8W33VtwetuJC7v6jyy5E6fEUpyRaKjFXFScCADMRL1hXwMAAA== X-CMS-MailID: 20230328112718eucas1p214a859cfb3d7b45523356bcc16c373b1 X-Msg-Generator: CA X-RootMTR: 20230328112718eucas1p214a859cfb3d7b45523356bcc16c373b1 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20230328112718eucas1p214a859cfb3d7b45523356bcc16c373b1 References: <20230328112716.50120-1-p.raghav@samsung.com> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org zram_page_end_io function is called when alloc_page is used (for partial IO) to trigger writeback from the user space. The pages used for this operation is never locked or have the writeback set. So, it is safe to remove the call to page_endio() function that unlocks or marks writeback end on the page. Rename the endio handler from zram_page_end_io to zram_read_end_io as the call to page_endio() is removed and to associate the callback to the operation it is used in. Signed-off-by: Pankaj Raghav --- drivers/block/zram/zram_drv.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index b7bb52f8dfbd..3300e7eda2f6 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -606,12 +606,8 @@ static void free_block_bdev(struct zram *zram, unsigned long blk_idx) atomic64_dec(&zram->stats.bd_count); } -static void zram_page_end_io(struct bio *bio) +static void zram_read_end_io(struct bio *bio) { - struct page *page = bio_first_page_all(bio); - - page_endio(page, op_is_write(bio_op(bio)), - blk_status_to_errno(bio->bi_status)); bio_put(bio); } @@ -635,7 +631,7 @@ static int read_from_bdev_async(struct zram *zram, struct bio_vec *bvec, } if (!parent) - bio->bi_end_io = zram_page_end_io; + bio->bi_end_io = zram_read_end_io; else bio_chain(bio, parent);