Module Name: src
Committed By: jdolecek
Date: Wed Jul 28 21:38:50 UTC 2021
Modified Files:
src/sys/arch/xen/xen: xbdback_xenbus.c
Log Message:
fix intentional, but eventually faulty off-by-one for the maximum number
of segments for I/O - this was supposed to allow MAXPHYS-size I/O even
with page offset, but actually ended up letting through I/O up to
MAXPHYS+PAGE_SIZE
the KASSERT(bcount < MAXPHYS) is kept as-is, since at that place the number
of segments should already be validated, so it's kernel bug if the size
is still too big there
fixes PR port-xen/56328 by Greg Oster
To generate a diff of this commit:
cvs rdiff -u -r1.97 -r1.98 src/sys/arch/xen/xen/xbdback_xenbus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
