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AJvYcCVOfebEc/qq5oPfC8mWWloOKRaGg2IT//0jlkeGmPXlOI2a5LEmlylURzOiQGkcUC8siWtVsmnRmw==@kvack.org X-Gm-Message-State: AOJu0Yy/dPBUkPbPJwiWWrqxP2reRG46xAmJKJFxeJZFkKhrAgqxH04i NW/uB17ff9vYo05lZmUamD4et1Z7q5w/gEBDBooAaR+YxUxZMx16 X-Google-Smtp-Source: AGHT+IFvocGse94WXxiZf5ejfW8ZMZrfybKRDozJJhDfTj+R6qo5a3bNsb79W/etWWrqI4tOhHvi1A== X-Received: by 2002:a05:6a21:e8e:b0:1d2:bc8f:5e73 with SMTP id adf61e73a8af0-1d4d4bc0cc2mr1117741637.38.1727222478887; Tue, 24 Sep 2024 17:01:18 -0700 (PDT) Received: from [192.168.0.235] ([38.34.87.7]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71afc9cbc02sm1675483b3a.213.2024.09.24.17.01.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Sep 2024 17:01:18 -0700 (PDT) Message-ID: <4b5621958a758da830c1cf09c6f6893aed371f9d.camel@gmail.com> Subject: Re: [PATCH v2 19/25] netfs: Speed up buffered reading From: Eduard Zingerman To: David Howells , Manu Bretelle Cc: asmadeus@codewreck.org, ceph-devel@vger.kernel.org, christian@brauner.io, ericvh@kernel.org, hsiangkao@linux.alibaba.com, idryomov@gmail.com, jlayton@kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, marc.dionne@auristor.com, netdev@vger.kernel.org, netfs@lists.linux.dev, pc@manguebit.com, smfrench@gmail.com, sprasad@microsoft.com, tom@talpey.com, v9fs@lists.linux.dev, willy@infradead.org Date: Tue, 24 Sep 2024 17:01:13 -0700 In-Reply-To: <1279816.1727220013@warthog.procyon.org.uk> References: <20240923183432.1876750-1-chantr4@gmail.com> <20240814203850.2240469-20-dhowells@redhat.com> <1279816.1727220013@warthog.procyon.org.uk> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-1.fc40) MIME-Version: 1.0 X-Stat-Signature: 7hybqyq5t81ca3b76jzg98aur89tsn4e X-Rspamd-Queue-Id: C712B40014 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1727222480-639079 X-HE-Meta: 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 3LAx1g+s VTu+QYoTV/i0Wm8sffNXAPxFQRiCSOPb4p4tztwYBrBtMisWSDXDisVqhcj/h0Vt+LBirI4gfDFdnfyU2meqfWMcGQpLpSqy1arQ9EuK62xFrozo0zB3v6ZLxH3On+sFx/MRi7IAae4KZ3nhTI2uFiWQJpd3ixC/7ht0r+4SyhJtvQiHkb8TwUIB9tBvNAEuxZjVIrfDZUL0OJSUoah2zGJdLlr13ziQjZyhnJeK22ms0wDWBzZWEzCHVE9sVKSYNO3iRsmsKn8vjXy8yJ0FgI1qT8sgKzYsHmm7rVo/Go6vNZdkpvrQNYekvWkNGAcuOfHNHOmJD7jr2DZbUzvAwCqNr2bVfMDoBCRpkm2HgXUxBmkOAXAPjrm7YZ/OhqBpRXBJfrKgsBaVtQe0= X-Bogosity: Ham, tests=bogofilter, spamicity=0.069948, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 2024-09-25 at 00:20 +0100, David Howells wrote: > Could you try the attached? It may help, though this fixes a bug in the > write-side, not the read-side. > Hi David, I tried this patch on top of bpf-next but behaviour seems unchanged, dmesg is at [1]. [1] https://gist.github.com/eddyz87/ce45f90453980af6a5fadeb652e109f3 Thanks, Eduard [...]