Message ID | 20220923202822.2667581-8-keescook@chromium.org |
---|---|
State | Awaiting Upstream |
Headers | show
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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id a5-20020aa795a5000000b0054095e1b2e5sm6854521pfk.215.2022.09.23.13.28.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Sep 2022 13:28:28 -0700 (PDT) From: Kees Cook <keescook@chromium.org> To: Vlastimil Babka <vbabka@suse.cz> Date: Fri, 23 Sep 2022 13:28:13 -0700 Message-Id: <20220923202822.2667581-8-keescook@chromium.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220923202822.2667581-1-keescook@chromium.org> References: <20220923202822.2667581-1-keescook@chromium.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1522; h=from:subject; bh=B3w/yPcNxrDzZTqNaOBRmqqUYMKjQkfGlvei/e1+oVk=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBjLhbkv/6yf2iFhq9YdN0Aj+2wDjdTaVU6RYLE7C1a mKAEuIiJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYy4W5AAKCRCJcvTf3G3AJuZJEA CsVm4vzR8guJhS9ev8gPlqvsMaYX7r8aLG4A2NyUhHtbSYNZT7nhbnknnZom1pWNwXgl8qpCTbd6+f vjFzrrIjZtd4D+mSEQPZbx+7rT8VpT3Gtb3/D2nYYDaxLdL/DH99n2c2cbhe8zTWcTnyynJYvES2KC EyHjGO9+9QBzmAOfL6UqxFPxgSN6Mwe3il8Jqb4M5is1whaTpYWBL5PS8pHVDzWbA0hBRdEd/F7aPw o3KlBtzCSp4XR1hHtVT8NWbMPwch83XMmXdi0o6/GubfCfksfBTpaXo7dIG+SMZZQWfgCIvRni8oUC qF3eZ2rfkK2BLw1wcdknu/z43jqhoPV5OtU9fgboiNn0cRbYZC7GmCUWAST/dEfoMQx73mUpyFKCbB QKgl1tbq34QTMFjDcV6u59zyZLRrnP18YpxwCaUglLSod93wDcCin1+C5OXvXtCxNg3CAAlxDJHTVx 0pTds4BRbXQj2/4i4Hb/jcctaZnAs0UoMTTcW+BrbOixx0+CrzBJ0vNQMZh5Hs2WYucbihNX7w0sum 2KnTPVVPKpteClxy32zMqoJRvgjzvqik9+nj4bHX5wgV6aVi+dbQdRPezJyGYxH+GkBtsj0h3BjaPk k/mBMntGy8FlUD9pzWHKmr5gF7fYzXCDe75VLz+YEUGvOyBawRkvwMlkpY3w== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=lIp3Rau3XN5DhulJvqmP3ROLBDtGBYLacs8yQVXUsIc=; b=ayrELvkz6RCr+VJ5YTbdaI+C+7T6BGsJEAguxUgCPIN9LMOSG1cQ+4QSxLfuYecJ7g rEkt3pKt8Q3IXycqxre3TSAUHzDDJJG0qs2FtZn9cMqz4CShi0DQb1RnbrzDmC1TGFDB UCnS6y6zB4oIa+C342OBOENRxbAzNtGyV/eDA= X-Mailman-Original-Authentication-Results: smtp3.osuosl.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.a=rsa-sha256 header.s=google header.b=ayrELvkz Subject: [Intel-wired-lan] [PATCH v2 07/16] btrfs: send: Proactively round up to kmalloc bucket size X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development <intel-wired-lan.osuosl.org> List-Unsubscribe: <https://lists.osuosl.org/mailman/options/intel-wired-lan>, <mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe> List-Archive: <http://lists.osuosl.org/pipermail/intel-wired-lan/> List-Post: <mailto:intel-wired-lan@osuosl.org> List-Help: <mailto:intel-wired-lan-request@osuosl.org?subject=help> List-Subscribe: <https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, <mailto:intel-wired-lan-request@osuosl.org?subject=subscribe> Cc: llvm@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-mm@kvack.org, "Ruhl, Michael J" <michael.j.ruhl@intel.com>, Eric Dumazet <edumazet@google.com>, linux-hardening@vger.kernel.org, Hyeonggon Yoo <42.hyeyoo@gmail.com>, Christoph Lameter <cl@linux.com>, Sumit Semwal <sumit.semwal@linaro.org>, dev@openvswitch.org, x86@kernel.org, intel-wired-lan@lists.osuosl.org, David Rientjes <rientjes@google.com>, Miguel Ojeda <ojeda@kernel.org>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, linux-media@vger.kernel.org, Marco Elver <elver@google.com>, Kees Cook <keescook@chromium.org>, Josef Bacik <josef@toxicpanda.com>, linaro-mm-sig@lists.linaro.org, Yonghong Song <yhs@fb.com>, David Sterba <dsterba@suse.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Alex Elder <elder@kernel.org>, Chris Mason <clm@fb.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Nick Desaulniers <ndesaulniers@google.com>, linux-kernel@vger.kernel.org, =?utf-8?q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>, Pekka Enberg <penberg@kernel.org>, Daniel Micay <danielmicay@gmail.com>, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, "David S. Miller" <davem@davemloft.net>, linux-btrfs@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" <intel-wired-lan-bounces@osuosl.org> |
Series |
slab: Introduce kmalloc_size_roundup()
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expand
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diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index e7671afcee4f..d40d65598e8f 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -435,6 +435,11 @@ static int fs_path_ensure_buf(struct fs_path *p, int len) path_len = p->end - p->start; old_buf_len = p->buf_len; + /* + * Allocate to the next largest kmalloc bucket size, to let + * the fast path happen most of the time. + */ + len = kmalloc_size_roundup(len); /* * First time the inline_buf does not suffice */ @@ -448,11 +453,7 @@ static int fs_path_ensure_buf(struct fs_path *p, int len) if (!tmp_buf) return -ENOMEM; p->buf = tmp_buf; - /* - * The real size of the buffer is bigger, this will let the fast path - * happen most of the time - */ - p->buf_len = ksize(p->buf); + p->buf_len = len; if (p->reversed) { tmp_buf = p->buf + old_buf_len - path_len - 1;