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Thu, 25 Apr 2024 18:46:56 +0000 (GMT) Received: from epsmgmcp1.samsung.com (unknown [182.195.42.82]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20240425184656epsmtrp1f83ebcb4478fd493e8ff02931983235b~JmlNcEobB0085000850epsmtrp1U; Thu, 25 Apr 2024 18:46:56 +0000 (GMT) X-AuditID: b6c32a44-6c3ff70000002198-ca-662aa5204f69 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgmcp1.samsung.com (Symantec Messaging Gateway) with SMTP id 6D.C2.19234.F15AA266; Fri, 26 Apr 2024 03:46:55 +0900 (KST) Received: from localhost.localdomain (unknown [107.99.41.245]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240425184654epsmtip16e320a8c4939754f33ddec3ede5df744~JmlLpX8mS3266832668epsmtip13; Thu, 25 Apr 2024 18:46:53 +0000 (GMT) From: Kanchan Joshi To: axboe@kernel.dk, martin.petersen@oracle.com, kbusch@kernel.org, hch@lst.de, brauner@kernel.org Cc: asml.silence@gmail.com, dw@davidwei.uk, io-uring@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, gost.dev@samsung.com, Anuj Gupta , Kanchan Joshi Subject: [PATCH 03/10] block: copy result back to user meta buffer correctly in case of split Date: Fri, 26 Apr 2024 00:09:36 +0530 Message-Id: <20240425183943.6319-4-joshi.k@samsung.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240425183943.6319-1-joshi.k@samsung.com> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrIJsWRmVeSWpSXmKPExsWy7bCmuq7iUq00g5PdzBZNE/4yW8xZtY3R YvXdfjaL14c/MVq8mrGWzeLmgZ1MFitXH2WyeNd6jsXi6P+3bBaTDl1jtNh7S9ti/rKn7BbL j/9jcuD1uDZjIovHzll32T0uny312LSqk81j85J6j903G9g8Pj69xeLRt2UVo8fnTXIBnFHZ NhmpiSmpRQqpecn5KZl56bZK3sHxzvGmZgaGuoaWFuZKCnmJuam2Si4+AbpumTlAVysplCXm lAKFAhKLi5X07WyK8ktLUhUy8otLbJVSC1JyCkwK9IoTc4tL89L18lJLrAwNDIxMgQoTsjM+ ru1nL1jCVfFx5nfGBsYbHF2MnBwSAiYSh9Y8Z+9i5OIQEtjNKHH2w0VWCOcTo8SKI6sRnNsf d7HCtDS33oJq2ckosebMW0YI5zOjxLuOuSxdjBwcbAKaEhcml4I0iAikSLxa95oRxGYWeMoo 8aOTCaREWCBeonFnJEiYRUBV4suubSwgNq+AucSW5jZGiF3yEjMvfWcHsTkFLCQmXzzNDlEj KHFy5hMWiJHyEs1bZzODnCAhsJJDYun5I1DNLhK7Wn+zQdjCEq+Ob2GHsKUkXva3QdnJEpdm nmOCsEskHu85CGXbS7Se6mcGuZMZ6JX1u/QhdvFJ9P5+Ana+hACvREebEES1osS9SU+hwSMu 8XDGEijbQ+Lhoi42SOh0M0q8/rWQeQKj/CwkL8xC8sIshG0LGJlXMUqmFhTnpqcmmxYY5qWW w+M1OT93EyM47Wq57GC8Mf+f3iFGJg7GQ4wSHMxKIrw3P2qkCfGmJFZWpRblxxeV5qQWH2I0 BYbxRGYp0eR8YOLPK4k3NLE0MDEzMzOxNDYzVBLnfd06N0VIID2xJDU7NbUgtQimj4mDU6qB qSxx+17JVfYqKacvak+N3qhXe7uoYXur+S+ReeF15VkvHE89bxC5cXBOwowts7n+HFuUUavP f/LKO5tQA3UZrtbEGQGH1/280XohIDX+p7bsXgOtzUduyR28zNvO2Lohew6/2Yoj/zts/OtE mp+pZJw3SHi3dds8JoEntbePW7d+WPC57n/w0W3Z6gU3oiafTqjiUYkr2XPz1jTffx3mXks6 9/NEmx8W7Go/nT4lZX/o2udnz4lxam14cpYxg3W53mtxFgWx5bZvuOzXr7u3o0d2zS1mntSZ ldr8/f5z5lw55XnZZiqL0f3TEvdauXr9mBje3FLbwzzr2Ytniez8C66UHe05mp16I6Wl9Pfs XUosxRmJhlrMRcWJAPe/hhFEBAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrELMWRmVeSWpSXmKPExsWy7bCSnK78Uq00g+uvzC2aJvxltpizahuj xeq7/WwWrw9/YrR4NWMtm8XNAzuZLFauPspk8a71HIvF0f9v2SwmHbrGaLH3lrbF/GVP2S2W H//H5MDrcW3GRBaPnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB5fHx6i8Wjb8sqRo/Pm+QCOKO4 bFJSczLLUov07RK4Mj6u7WcvWMJV8XHmd8YGxhscXYycHBICJhLNrbfYuxi5OIQEtjNKXDp+ mw0iIS7RfO0HO4QtLLHy33Oooo+MEl9nTmTuYuTgYBPQlLgwuRSkRkQgS2Jv/xWwGmaBt4wS 8//uYQZJCAvESpyd38YKYrMIqEp82bWNBcTmFTCX2NLcxgixQF5i5qXvYMs4BSwkJl88DWYL AdVMXbOIEaJeUOLkzCdgvcxA9c1bZzNPYBSYhSQ1C0lqASPTKkbR1ILi3PTc5AJDveLE3OLS vHS95PzcTYzgaNEK2sG4bP1fvUOMTByMhxglOJiVRHhvftRIE+JNSaysSi3Kjy8qzUktPsQo zcGiJM6rnNOZIiSQnliSmp2aWpBaBJNl4uCUamDaesnwkYb5UYbCHS39+VUbp17emD11nVmJ yZuHbaJO9ikSaYvvN/VGtuy1j6t+c6rIIMRqmeDci1EGHrYd5Vt7Z79xiTeb5RZ5IaFxd2+5 5EK+4PPzZTZMd9hdcW3yGysv/9eXbsbWx3HOmr987/tknVTNJ3v/ip/829szfb3gtd9nTa12 Lfmc6XrzkUyZz8cAUZu3Hg6FM6ctuyTRs3dxktDn5bNZIg67HP198c3e7kc/31nff7TX1Wma /MVTxx/fyVHmVN9srjk7qTn/ZrDIosmeXdVVVqFKdqKeEmEsfgFLVFLY8h2u9Jioxv49tcuu 12vpa8fyiypPD9VWb7241+e005eLZ1oMz+hPZTykxFKckWioxVxUnAgATUJq2wUDAAA= X-CMS-MailID: 20240425184656epcas5p42228cdef753cf20a266d12de5bc130f0 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240425184656epcas5p42228cdef753cf20a266d12de5bc130f0 References: <20240425183943.6319-1-joshi.k@samsung.com> From: Anuj Gupta In case of split, the len and offset of bvec gets updated in the iter. Use it to fetch the right bvec, and copy it back to user meta buffer. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi --- block/bio-integrity.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/block/bio-integrity.c b/block/bio-integrity.c index c1955f01412e..b4042414a08f 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -108,11 +108,15 @@ static void bio_integrity_uncopy_user(struct bio_integrity_payload *bip) unsigned short nr_vecs = bip->bip_max_vcnt - 1; struct bio_vec *copy = &bip->bip_vec[1]; size_t bytes = bip->bip_iter.bi_size; + struct bio_vec copy_bvec, src_bvec; struct iov_iter iter; int ret; - iov_iter_bvec(&iter, ITER_DEST, copy, nr_vecs, bytes); - ret = copy_to_iter(bvec_virt(bip->bip_vec), bytes, &iter); + copy_bvec = mp_bvec_iter_bvec(copy, bip->bip_iter); + src_bvec = mp_bvec_iter_bvec(bip->bip_vec, bip->bip_iter); + + iov_iter_bvec(&iter, ITER_DEST, ©_bvec, nr_vecs, bytes); + ret = copy_to_iter(bvec_virt(&src_bvec), bytes, &iter); WARN_ON_ONCE(ret != bytes); bio_integrity_unpin_bvec(copy, nr_vecs, true); -- 2.25.1