Message ID | 20210310222300.200054-4-peterx@redhat.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Wed, 10 Mar 2021 14:23:05 -0800 (PST) Received: from xz-x1.redhat.com ([142.126.89.138]) by smtp.gmail.com with ESMTPSA id e18sm451364qtr.52.2021.03.10.14.23.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Mar 2021 14:23:05 -0800 (PST) From: Peter Xu <peterx@redhat.com> To: linux-man@vger.kernel.org Cc: Andrea Arcangeli <aarcange@redhat.com>, Michael Kerrisk <mtk.manpages@gmail.com>, Axel Rasmussen <axelrasmussen@google.com>, linux-kernel@vger.kernel.org, peterx@redhat.com, Linux MM Mailing List <linux-mm@kvack.org>, Andrew Morton <akpm@linux-foundation.org>, Alejandro Colomar <alx.manpages@gmail.com>, Nadav Amit <nadav.amit@gmail.com>, Mike Rapoport <rppt@linux.vnet.ibm.com> Subject: [PATCH v3 3/4] ioctl_userfaultfd.2: Add UFFD_FEATURE_THREAD_ID docs Date: Wed, 10 Mar 2021 17:22:59 -0500 Message-Id: <20210310222300.200054-4-peterx@redhat.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210310222300.200054-1-peterx@redhat.com> References: <20210310222300.200054-1-peterx@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; 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Series |
man2: udpate mm/userfaultfd manpages to latest
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expand
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diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2 index 47ae5f473..d4a8375b8 100644 --- a/man2/ioctl_userfaultfd.2 +++ b/man2/ioctl_userfaultfd.2 @@ -208,6 +208,11 @@ signal will be sent to the faulting process. Applications using this feature will not require the use of a userfaultfd monitor for processing memory accesses to the regions registered with userfaultfd. +.TP +.BR UFFD_FEATURE_THREAD_ID " (since Linux 4.14)" +If this feature bit is set, +.I uffd_msg.pagefault.feat.ptid +will be set to the faulted thread ID for each page fault message. .PP The returned .I ioctls
UFFD_FEATURE_THREAD_ID is supported in Linux 4.14. Signed-off-by: Peter Xu <peterx@redhat.com> --- man2/ioctl_userfaultfd.2 | 5 +++++ 1 file changed, 5 insertions(+)