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Silva" , "linux-kernel@vger.kernel.org" , "linux-cxl@vger.kernel.org" , "linux-hardening@vger.kernel.org" , Leon Romanovsky , "Jason Gunthorpe" , Alex Williamson , "pierre.cregut@orange.com" Subject: [PATCH v3 0/2] PCI/IOV: sriov_numvfs bug fixes Thread-Topic: [PATCH v3 0/2] PCI/IOV: sriov_numvfs bug fixes Thread-Index: AQHaX5l7eXJDO8TLJEqs+FrXTi3ZpQ== Date: Wed, 14 Feb 2024 22:59:37 +0000 Message-ID: <170795147587.2393.15577527626926144858.stgit@bgt-140510-bm01.eng.stellus.in> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CFilter-Loop: Reflected X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrOKsWRmVeSWpSXmKPExsWy7djX87q3Xc+mGiy4z2bx7X8Pm8XdxxfY LKZPvcBoceJmI5vF6ptrGC1+XZzGarH/6XMWiyv/9jBarFp4jc3iTHeuxaYNT1gszs86xWIx b/1PRovLu+awWaz/+p7N4taEY0wOAh6zGy6yeLQcecvqsXjPSyaPTas62Tx6m9+xebQ8O8nm 8X7fVTaPqbPrPT5vkgvgjOKySUnNySxLLdK3S+DKmHR+JUvBM46Kkw96GBsYT3B0MXJySAiY SHy+O521i5GLQ0hgJaPEo6vPmSCcViaJm0s+McNUdTS8YYRIrGGUeHpiEVTLJ0aJNfNesEE4 yxgl3vQ1sYK0sAloSvy6sgZslojAR1aJvh1T2LsYOTiEBcwlPvyPB6kREbCReDRxGyuErSfR 9W4/I4jNIqAqcfXsLzCbVyBS4uHme2A2o4CYxPdTIDM5OZgFxCVuPZnPBHGeoMSi2XugThWT +LfrIRuErShx//tLsLXMQPes36UP0WoncXfjHHYIW1FiSvdDdohVghInZz5hgWiVlDi44gYL yPkSApM5JTZPOc8KMkdCwEXi6jQviBppiavXp0KtzZZYub6DCaKkQKLhSBBE2Fpi4Z/1UBfz Sfz99YgRooRXoqNNaAKj0iwkv8xCuHMWkjtnIblzFpI7FzCyrmIULy0uzk1PLTbKSy3XK07M LS7NS9dLzs/dxAhMi6f/Hc7fwXj91ke9Q4xMHIyHGCU4mJVEeCf1nkkV4k1JrKxKLcqPLyrN SS0+xCjNwaIkzmtoezJZSCA9sSQ1OzW1ILUIJsvEwSnVwDT17w2HlKmep1TWxHE0lwo9W6kv 1eCnts3e+kLKQYnT6X+zeH/Ubk5V8PjRKqWYOCEieE7UsiaeqTqfmstlV8zKCd1p7ixYUXQh ehFzpszZlkf6JSuepSvu33a3839n8olDG5Te1G2Z8WhuV2KYT/7a+CtiSRvnRri3qlpsm8i5 eJGaRbRj6mL1+SriUwrury9Vs1Z+k8q19XqSyM6lHld/bI9ePFPB7sHeDbOUf0+20IpcsDoi 4sklkeezjq/nXXlUVzn8Zbf+dN/rCuYvrwk2hNT0+8veV+7aeWqT2FrN77bzpIJu/1ssZRrV 36kptueo7da5hQHfV5p4zJngM+XJ/3tTsx3PTue//OBw+jslluKMREMt5qLiRACKE6yx+gMA AA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrMIsWRmVeSWpSXmKPExsWS2cDsrHvL9WyqwdOPkhbf/vewWdx9fIHN YvrUC4wWJ242slmsvrmG0eLXxWmsFvufPmexuPJvD6PFqoXX2CzOdOdabNrwhMXi/KxTLBbz 1v9ktLi8aw6bxfqv79ksbk04xuQg4DG74SKLR8uRt6wei/e8ZPLYtKqTzaO3+R2bR8uzk2we 7/ddZfOYOrve4/MmuQDOKC6blNSczLLUIn27BK6MSedXshQ846g4+aCHsYHxBEcXIyeHhICJ REfDG8YuRi4OIYFVjBJ9p9+yQjifGCVOzutignCWATmXtjCDtLAJaEr8urIGLCEi8JFV4vOD qexdjBwcwgLmEh/+x4PUiAjYSDyauI0VwtaT6Hq3nxHEZhFQlbh69heYzSsQKfFw8z0wm1FA TOL7KZCZnBzMAuISt57MZ4I4T0BiyZ7zzBC2qMTLx/9YIWxFifvfX4KtZQa6Z/0ufYhWO4m7 G+ewQ9iKElO6H7JDrBKUODnzCQtEq6TEwRU3WCYwis5Csm0WwqRZSCbNQjJpFpJJCxhZVzGK lxYX56ZXFBvmpZbrFSfmFpfmpesl5+duYgSmg9P/DkfuYDx666PeIUYmDsZDjBIczEoivJN6 z6QK8aYkVlalFuXHF5XmpBYfYpTmYFES5737QCNVSCA9sSQ1OzW1ILUIJsvEwSnVwLQib9JK /99F4htjXHddOKKpzfrZyjptnry/BIewRP0kc2meA+0uHmG12w7GXDpQfHdJ9fQMNwmlpppD shzWh9f/rz5dGFzlsLNxmXrLs2u59ZFXnuhGBvQsse6f8PWBcHDFHp7VK54X767w+XnlkIhQ +REGzvdZ4vu7HmilRFSW++ccUHhxeW2WwtWPh0/vsIjS2pUy7eqnzAVml33CHzid7XxyeZ7J /sCGD3s87RM0/kvxJTG/smLVOPLt9Lf/v/2ty+bd2/xEQ14w8Mjs5v1/+j9cU2z99lV3Y+vy xTkS+v23L79s7n5vGiAzraVV48ilt2fXKLf/venubfLzw9spHxc51c+1k3x7t2dat68SS3FG oqEWc1FxIgBImar0dgMAAA== X-CMS-MailID: 20240214225938uscas1p28fc1f193d68b26b0e3b6e0e6da4574eb CMS-TYPE: 301P X-CMS-RootMailID: 20240214225938uscas1p28fc1f193d68b26b0e3b6e0e6da4574eb References: X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790918527169979845 X-GMAIL-MSGID: 1790918527169979845 A deadlock condition was discovered by SPDK when removing an SRIOV-enabled and VFIO-attached device, with a specific threading model. While discussing this on the mailing list, a separate issue around updating sriov_numvfs and its kobject_uevent() was also discovered. This series fixes both of those issues. --- v1 => v2: * No code changes * Updated commit messages per feedback from Bjorn * Added Leon's Reviewed-by tags * Moved bulk of the v1 cover letter to the revert patch commit message where it belonged v2 => v3: * Update iov->num_VFs before VFs are probed --- Jim Harris (2): PCI/IOV: Revert "PCI/IOV: Serialize sysfs sriov_numvfs reads vs writes" PCI/IOV: set iov->num_VFs before VFs are probed drivers/pci/iov.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) --