Hi Nadav, On 3/14/22 13:23, Alejandro Colomar (man-pages) wrote: > Hi Nadav, > > On 3/7/22 19:48, Nadav Amit wrote: >> From: Nadav Amit <namit@xxxxxxxxxx> >> >> Describe the new UFFD_FEATURE_EXACT_ADDRESS API feature. >> >> Signed-off-by: Nadav Amit <namit@xxxxxxxxxx> >> --- > > LGTM. Please ping when it's added to Linus's tree, > and add a comment with the commit message that added it. I've checked that this was finally added to the kernel. Should I apply the patch as is, or is there anything that was changed? Cheers, Alex > > Thanks, > > Alex > >> man2/ioctl_userfaultfd.2 | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >> diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2 >> index 504f61d4b..94480158e 100644 >> --- a/man2/ioctl_userfaultfd.2 >> +++ b/man2/ioctl_userfaultfd.2 >> @@ -214,6 +214,14 @@ memory accesses to the regions registered with userfaultfd. >> 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. >> +.TP >> +.BR UFFD_FEATURE_EXACT_ADDRESS " (since Linux 5.18)" >> +If this feature bit is set, >> +.I uffd_msg.pagefault.address >> +will be set to the exact page-fault address that was reported by the hardware, >> +and will not mask the offset within the page. >> +Note that old Linux versions might indicate the exact address as well, >> +even though the feature bit is not set. >> .PP >> The returned >> .I ioctls > -- <http://www.alejandro-colomar.es/> GPG key fingerprint: A9348594CE31283A826FBDD8D57633D441E25BB5
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