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Miller" , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , Magnus Karlsson , Jonathan Lemon , Jakub Kicinski , Daniel Borkmann , Ilya Maximets Subject: [PATCH bpf v4 0/2] xdp: fix hang while unregistering device bound to xdp socket Date: Wed, 26 Jun 2019 21:15:13 +0300 Message-Id: <20190626181515.1640-1-i.maximets@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA0WSbUhTYRTHe3a3u6u1uk7R0yaKU0ElNakPF5VqYDD6ZI4gJstuedGRm7r5 mlCrRE2pRViiCJqSr2RmQ91QyWGaZhrmB400XwqnoplmKTNt80769jv/F87h4SEwYQlPRKg0 GYxWQ6dIcFdue//2SCjV7q48uVMRRe0UtCJqo28Ap2qf/caoytF8LjVeuM2n+q35OGVuKceo T+ZKnGqwvLNr1Z5Uh6EHnTssMzZOcmSmiim+rLZrkSMrnhjDZGUls5jsobEJyTbafGL5Ctfo RCZFlcVow89cdU1++lme9grPWdra5OjRArcYuRBAnob5ykZeMXIlhGQDgumFeufwC4Hp4w+c HTYQ3DVX8Q4q95cLcAcLyXoEY3OX2NAWguH+L/sGTp6AoeY+5GAPUgQ/Ozv4jhBGlmNgnC/d X+5OKmBYX4E5mEsGgnlqju9gARkJq7VNOLvNF5pb32COMpA2HKwvTBzWiIE+g4XPsjssDRid 7A17pipn5jZ8zV9EbLkIQZll12mcBePyiL1A2E8KhpfmcFaWwve3E/sykEdhYsXNIWN2fNxe hrGyAIoKhGw6AGy99RjLIphc3XBeIIM73TVc9oGU0Fk3ij9CPhX/d1Uj1IS8mEydOonRRWiY 7DAdrdZlapLCrqeq25D9i7zfHVjvRJtj1yyIJJDkiEDvK1QKeXSWLldtQUBgEg/Bc5pUCgWJ dO5NRpuaoM1MYXQWJCa4Ei9B3qGZeCGZRGcwNxgmjdEeuBzCRaRHPq+j9HT7Mcn8+YvrNYr0 ANvMg6D4kLrL48H9M/Lj0T0mEb+3WlWo34mbVo+tWQOTGnc0f0J7/C8kdq907RFNynhv7Jtb i/yeOCHI+GQkhuHb1rKHygct1nQ/qXRWGls6mGK4FReena7M8yzM+eBn+2sQq8RX6iZP+UdO yxUSri6ZjgjBtDr6H5frnlUeAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrILMWRmVeSWpSXmKPExsVy+t/xe7oW24RjDdb8ZrP407aB0eLzkeNs FosXfmO2mHO+hcXiSvtPdotjL1rYLHatm8lscXnXHDaLFYdOAMUWiFls79/H6MDtsWXlTSaP nbPusnss3vOSyaPrxiVmj+ndD5k9+rasYvT4vEkugD1Kz6Yov7QkVSEjv7jEVina0MJIz9DS Qs/IxFLP0Ng81srIVEnfziYlNSezLLVI3y5BL2PareCCjWwVr358ZWpgfM7SxcjJISFgItH5 uo2ti5GLQ0hgKaNEy85DbBAJKYkfvy6wQtjCEn+udUEVfWOUWHbiJDNIgk1AR+LU6iOMILYI UMPHHdvZQWxmgYXMEl8mmYDYwgIRElvWrAGLswioSuy6+wjM5hWwkni3eBXUMnmJ1RsOME9g 5FnAyLCKUSS1tDg3PbfYSK84Mbe4NC9dLzk/dxMjMHi3Hfu5ZQdj17vgQ4wCHIxKPLwN8kKx QqyJZcWVuYcYJTiYlUR4lyYKxArxpiRWVqUW5ccXleakFh9iNAVaPpFZSjQ5HxhZeSXxhqaG 5haWhubG5sZmFkrivB0CB2OEBNITS1KzU1MLUotg+pg4OKUaGM8x7HNwvfy7Oza2c1HvzowN l5lU0sIvn91gtn4iT211rlnhOnfm3zOWaC//+qJ/RXap7bP/Fjs7Y389tG2eteDJ+9sLT2cw NTPcrrjzU6RhxreDEjst3+cJbtwawjtPz1yteeV+ZYHsA4siU+76VPRJPzEV8+aqPRzF/sb+ ccDHqXanFnI+X63EUpyRaKjFXFScCAAneowpdAIAAA== X-CMS-MailID: 20190626181520eucas1p1817d31d958b8755600f0745e92edef5a X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20190626181520eucas1p1817d31d958b8755600f0745e92edef5a X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190626181520eucas1p1817d31d958b8755600f0745e92edef5a References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Version 4: * 'xdp_umem_clear_dev' exposed to be used while unregistering. * Added XDP socket state to track if resources already unbinded. * Splitted in two fixes. Version 3: * Declaration lines ordered from longest to shortest. * Checking of event type moved to the top to avoid unnecessary locking. Version 2: * Completely re-implemented using netdev event handler. Ilya Maximets (2): xdp: hold device for umem regardless of zero-copy mode xdp: fix hang while unregistering device bound to xdp socket include/net/xdp_sock.h | 5 +++ net/xdp/xdp_umem.c | 27 +++++++------ net/xdp/xdp_umem.h | 1 + net/xdp/xsk.c | 88 ++++++++++++++++++++++++++++++++++++------ 4 files changed, 99 insertions(+), 22 deletions(-) -- 2.17.1