|author||Rick Macklem <rmacklem@FreeBSD.org>||2019-12-13 16:28:48 +0000|
|committer||Rick Macklem <rmacklem@FreeBSD.org>||2019-12-13 16:28:48 +0000|
Add an entry to RELNOTES for r355677.
Notes: svn path=/head/; revision=355715
Diffstat (limited to 'RELNOTES')
1 files changed, 22 insertions, 0 deletions
@@ -10,6 +10,28 @@ newline. Entries should be separated by a newline.
Changes to this file should not be MFCed.
+ Adds support for NFSv4.2 (RFC-7862) and Extended Attributes
+ (RFC-8276) to the NFS client and server.
+ NFSv4.2 is comprised of several optional features that can be supported
+ in addition to NFSv4.1. This patch adds the following optional features:
+ - posix_fadvise(POSIX_FADV_WILLNEED/POSIX_FADV_DONTNEED)
+ - posix_fallocate()
+ - intra server file range copying via the copy_file_range(2) syscall
+ --> Avoiding data tranfer over the wire to/from the NFS client.
+ - lseek(SEEK_DATA/SEEK_HOLE)
+ - Extended attribute syscalls for "user" namespace attributes as defined
+ by RFC-8276.
+ For the client, NFSv4.2 is only used if the mount command line option
+ minorversion=2 is specified.
+ For the server, two new sysctls called vfs.nfsd.server_min_minorversion4
+ and vfs.nfsd.server_max_minorversion4 have been added that allow
+ sysadmins to limit the minor versions of NFSv4 supported by the nfsd
+ Setting vfs.nfsd.server_max_minorversion4 to 0 or 1 will disable NFSv4.2
+ on the server.
iwm(4) now supports most Intel 9260, 9460 and 9560 Wi-Fi devices.