twx-linux/include/uapi/linux
Rajesh Ghanekar 18c01ab302 nfsd: allow turning off nfsv3 readdir_plus
One of our customer's application only needs file names, not file
attributes. With directories having 10K+ inodes (assuming buffer cache
has directory blocks cached having file names, but inode cache is
limited and hence need eviction of older cached inodes), older inodes
are evicted periodically. So if they keep on doing readdir(2) from NSF
client on multiple directories, some directory's files are periodically
removed from inode cache and hence new readdir(2) on same directory
requires disk access to bring back inodes again to inode cache.

As READDIRPLUS request fetches attributes also, doing getattr on each
file on server, it causes unnecessary disk accesses. If READDIRPLUS on
NFS client is returned with -ENOTSUPP, NFS client uses READDIR request
which just gets the names of the files in a directory, not attributes,
hence avoiding disk accesses on server.

There's already a corresponding client-side mount option, but an export
option reduces the need for configuration across multiple clients.

This flag affects NFSv3 only.  If it turns out it's needed for NFSv4 as
well then we may have to figure out how to extend the behavior to NFSv4,
but it's not currently obvious how to do that.

Signed-off-by: Rajesh Ghanekar <rajesh_ghanekar@symantec.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-08-18 15:12:14 -04:00
..
byteorder
caif
can can: netlink: Add CAN_CTRLMODE_PRESUME_ACK flag 2014-07-15 09:34:19 +02:00
cifs cifs: Move and expand MAX_SERVER_SIZE definition 2013-09-08 14:34:22 -05:00
dvb
genwqe GenWQE: Add sysfs interface for bitstream reload 2014-07-09 14:14:27 -07:00
hdlc
hsi
isdn
mmc
netfilter net: filter: split 'struct sk_filter' into socket and bpf parts 2014-08-02 15:03:58 -07:00
netfilter_arp
netfilter_bridge netfilter: kill ulog targets 2014-06-25 19:28:43 +02:00
netfilter_ipv4 netfilter: kill ulog targets 2014-06-25 19:28:43 +02:00
netfilter_ipv6
nfsd nfsd: allow turning off nfsv3 readdir_plus 2014-08-18 15:12:14 -04:00
raid md: Change handling of save_raid_disk and metadata update during recovery. 2014-01-14 16:44:21 +11:00
spi spi: spidev: Add support for Dual/Quad SPI Transfers 2014-02-27 13:51:29 +09:00
sunrpc
tc_act net_sched: act: pick a different type for act_xt 2014-01-16 17:24:11 -08:00
tc_ematch
usb usb: patches for v3.17 merge window 2014-07-21 11:33:41 -07:00
wimax uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
a.out.h
acct.h
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h
apm_bios.h apm-emulation: add hibernation APM events to support suspend2disk 2014-01-07 13:50:28 +01:00
arcfb.h
atalk.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h
atm.h
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
audit.h arm64: Add audit support 2014-07-10 11:06:00 +01:00
auto_fs4.h
auto_fs.h
auxvec.h
ax25.h
b1lli.h
baycom.h
bcache.h bcache: Add bch_btree_keys_u64s_remaining() 2014-01-08 13:05:13 -08:00
bcm933xx_hcs.h MIPS: BCM63XX: recognize Cable Modem firmware format 2013-07-01 15:10:53 +02:00
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
bpqether.h
bsg.h block SG_IO: add SG_FLAG_Q_AT_HEAD flag 2014-07-01 10:48:05 -06:00
btrfs.h btrfs: create sprout should rename fsid on the sysfs as well 2014-06-28 13:48:44 -07:00
can.h can: unify identifiers to ensure unique include processing 2014-05-19 09:38:24 +02:00
capability.h audit: add netlink audit protocol bind to check capabilities on multicast join 2014-04-22 21:42:27 -04:00
capi.h isdn: capi: fix "CAPI_VERSION" comment 2014-03-20 14:55:18 +01:00
cciss_defs.h
cciss_ioctl.h
cdrom.h
cgroupstats.h
chio.h
cm4000_cs.h Omnikey Cardman 4000: pull in ioctl.h in user header 2013-08-28 19:26:38 -07:00
cn_proc.h
coda_psdev.h
coda.h
coff.h
connector.h
const.h linux/const.h: Add _BITUL() and _BITULL() 2013-06-25 15:50:04 -07:00
cramfs_fs.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h dcbnl : Fix misleading dcb_app->priority explanation 2014-07-30 17:21:05 -07:00
dccp.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlm.h
dlmconstants.h
dm-ioctl.h dm: allow remove to be deferred 2013-11-09 18:20:22 -05:00
dm-log-userspace.h dm log userspace: allow mark requests to piggyback on flush requests 2014-01-21 23:46:27 -05:00
dn.h include/uapi/linux/dn.h: pull in ioctl.h header 2014-01-23 16:36:55 -08:00
dqblk_xfs.h quota: Add a new quotactl command Q_XGETQSTATV 2013-08-20 16:53:58 -05:00
edd.h
efs_fs_sb.h
elf-em.h Drop remaining references to H8/300 architecture 2013-09-16 18:20:24 -07:00
elf-fdpic.h
elf.h
elfcore.h
errno.h
errqueue.h net-timestamp: ACK timestamp for bytestreams 2014-08-05 16:35:54 -07:00
ethtool.h ethtool: Improve explanation of the two arrays following struct ethtool_rxfh 2014-05-19 01:19:30 +01:00
eventpoll.h epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled 2013-12-03 15:35:52 +01:00
fadvise.h
falloc.h fs: Introduce FALLOC_FL_ZERO_RANGE flag for fallocate 2014-03-13 19:07:42 +11:00
fanotify.h
fb.h
fcntl.h shm: add sealing API 2014-08-08 15:57:31 -07:00
fd.h floppy: bail out in open() if drive is not responding to block0 read 2014-01-17 11:12:06 +01:00
fdreg.h
fib_rules.h fib_rules: fix suppressor names and default values 2013-08-03 10:40:23 -07:00
fiemap.h ext4: add support for extent pre-caching 2013-08-16 22:05:14 -04:00
filter.h filter: added BPF random opcode 2014-04-22 21:27:57 -04:00
firewire-cdev.h firewire: fix libdc1394/FlyCap2 iso event regression 2013-07-27 20:24:36 +02:00
firewire-constants.h
flat.h
fs.h vfs: add cross-rename 2014-04-01 17:08:43 +02:00
fsl_hypervisor.h
fuse.h fuse: add FUSE_NO_OPEN_SUPPORT flag to INIT 2014-07-22 16:37:43 +02:00
futex.h
gameport.h
gen_stats.h net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
genetlink.h genetlink/pmcraid: use proper genetlink multicast API 2013-11-28 18:26:30 -05:00
gfs2_ondisk.h GFS2: remove transaction glock 2014-05-14 10:04:34 +01:00
gigaset_dev.h
hash_info.h crypto: provide single place for hash algo information 2013-10-25 17:14:03 -04:00
hdlc.h
hdlcdrv.h
hdreg.h
hid.h
hiddev.h
hidraw.h
hpet.h
hsr_netlink.h net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0) 2013-11-03 23:20:14 -05:00
hw_breakpoint.h
hyperv.h Tools: hv: Handle the case when the target file exists correctly 2014-04-16 14:10:36 -07:00
hysdn_if.h
i2c-dev.h
i2c.h
i2o-dev.h
i8k.h i8k: uapi: Introduce define for new highest fan speed 2014-07-09 16:41:36 -07:00
icmp.h
icmpv6.h ICMPv6: treat dest unreachable codes 5 and 6 as EACCES, not EPROTO 2013-09-03 22:11:44 -04:00
if_addr.h ipv6 addrconf: add IFA_F_NOPREFIXROUTE flag to suppress creation of IP6 routes 2014-01-15 17:00:40 -08:00
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h net: if_arp: add ARPHRD_6LOWPAN type 2013-12-11 12:57:55 -08:00
if_bonding.h bonding: modify the old and add new xmit hash policies 2013-10-03 15:36:38 -04:00
if_bridge.h uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
if_cablemodem.h if_cablemodem.h: Add parenthesis around ioctl macros 2013-05-08 13:13:30 -07:00
if_eql.h
if_ether.h ether: add loopback type ETH_P_LOOPBACK 2014-03-14 22:20:57 -04:00
if_fc.h
if_fddi.h FDDI: Reformat <linux/if_fddi.h> for 8-character tabs 2014-04-27 19:08:06 -04:00
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h ipv6: addrconf: implement address generation modes 2014-07-11 15:05:45 -07:00
if_ltalk.h
if_packet.h packet: remove deprecated syststamp timestamp 2014-07-29 11:39:50 -07:00
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h pptp: fix byte order warnings 2013-08-13 15:10:22 -07:00
if_slip.h
if_team.h
if_tun.h tun: Get skfilter layout 2013-08-21 12:21:45 -07:00
if_tunnel.h ip_vti: fix sparse warnings for VTI_ISVTI 2014-06-11 15:39:19 -07:00
if_vlan.h
if_x25.h
if.h net: move net_device priv_flags out from UAPI 2014-02-27 15:59:09 -05:00
igmp.h
in6.h net: reallocate new socket option number for IPV6_AUTOFLOWLABEL 2014-08-06 15:25:01 -07:00
in_route.h
in.h ipv4: yet another new IP_MTU_DISCOVER option IP_PMTUDISC_OMIT 2014-02-26 15:51:00 -05:00
inet_diag.h
inotify.h
input.h Merge branches 'for-3.16/i2c-hid', 'for-3.16/rmi4', 'for-3.16/sony' and 'for-3.16/thingm' into for-linus 2014-06-04 13:09:43 +02:00
ioctl.h
ip6_tunnel.h
ip_vs.h ipvs: fix the IPVS_CMD_ATTR_MAX definition 2013-10-15 10:36:01 +09:00
ip.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-08-26 16:37:08 -04:00
ipc.h
ipmi_msgdefs.h
ipmi.h
ipsec.h
ipv6_route.h
ipv6.h ipv6: Allow accepting RA from local IP addresses. 2014-07-01 12:16:24 -07:00
ipx.h
irda.h
irqnr.h
isdn_divertif.h
isdn_ppp.h
isdn.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
ixjuser.h
jffs2.h
joystick.h
Kbuild ARM/ARM64: KVM: Add common header for PSCI related defines 2014-04-30 04:18:57 -07:00
kd.h
kdev_t.h
kernel-page-flags.h
kernel.h
kernelcapi.h
kexec.h kexec: implementation of new syscall kexec_file_load 2014-08-08 15:57:32 -07:00
keyboard.h
keyctl.h KEYS: Add per-user_namespace registers for persistent per-UID kerberos caches 2013-09-24 10:35:19 +01:00
kvm_para.h MIPS: Add functions for hypervisor call 2014-05-30 21:01:11 +02:00
kvm.h Patch queue for ppc - 2014-08-01 2014-08-05 09:58:11 +02:00
l2tp.h l2tp: Add support for zero IPv6 checksums 2014-05-23 16:28:53 -04:00
libc-compat.h xattr: guard against simultaneous glibc header inclusion 2014-04-03 16:21:06 -07:00
limits.h
llc.h
loop.h
lp.h
magic.h Btrfs: add tests for find_lock_delalloc_range 2013-11-11 21:56:51 -05:00
major.h mtd: Move major number definitions to major.h 2013-11-06 23:32:59 -08:00
map_to_7segment.h
matroxfb.h
mdio.h
media.h [media] media: Add pad flag MEDIA_PAD_FL_MUST_CONNECT 2013-12-04 14:59:20 -02:00
mei.h
memfd.h shm: add memfd_create() syscall 2014-08-08 15:57:31 -07:00
mempolicy.h
meye.h
mic_common.h misc: mic: Fix endianness issues. 2013-11-27 11:03:38 -08:00
mic_ioctl.h misc: mic: fix possible signed underflow (undefined behavior) in userspace API 2014-02-07 15:30:34 -08:00
mii.h
minix_fs.h
mman.h
mmtimer.h
module.h
mpls.h UAPI: add MPLS label stack definition 2014-03-04 13:51:06 -05:00
mqueue.h uapi: Use __kernel_long_t in struct mq_attr 2014-01-20 14:45:33 -08:00
mroute6.h
mroute.h
msdos_fs.h fatfs: add FAT_IOCTL_GET_VOLUME_ID 2013-07-09 10:33:25 -07:00
msg.h uapi: Use __kernel_long_t in struct msgbuf 2014-01-20 14:44:50 -08:00
mtio.h
n_r3964.h
nbd.h
ncp_fs.h
ncp_mount.h
ncp_no.h
ncp.h
neighbour.h bridge: Add bridge ifindex to bridge fdb notify msgs 2014-06-02 17:58:55 -07:00
net_dropmon.h
net_tstamp.h net-timestamp: ACK timestamp for bytestreams 2014-08-05 16:35:54 -07:00
net.h
netconf.h netconf: rename PROXY_ARP to NEIGH_PROXY 2013-12-22 18:02:43 -05:00
netdevice.h net: add name_assign_type netdev attribute 2014-07-15 16:12:01 -07:00
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netfilter.h netfilter: nf_tables: add "inet" table for IPv4/IPv6 2014-01-07 23:57:25 +01:00
netlink_diag.h diag: warn about missing first netlink attribute 2013-11-28 18:16:43 -05:00
netlink.h
netrom.h
nfc.h NFC: Add RAW socket type support for SOCKPROTO_RAW 2014-05-20 00:06:04 +02:00
nfs2.h
nfs3.h
nfs4_mount.h
nfs4.h uapi: convert u64 to __u64 in exported headers 2014-01-23 16:36:55 -08:00
nfs_fs.h
nfs_idmap.h
nfs_mount.h NFS: stop using NFS_MOUNT_SECFLAVOUR server flag 2013-10-28 15:37:56 -04:00
nfs.h
nfsacl.h
nl80211.h cfg80211: pass TDLS initiator in tdls_mgmt operations 2014-06-23 14:24:55 +02:00
nubus.h
nvme.h NVMe: Define Log Page constants 2014-06-13 10:53:49 -04:00
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h openvswitch: Allow each vport to have an array of 'port_id's. 2014-07-24 01:15:04 -07:00
packet_diag.h diag: warn about missing first netlink attribute 2013-11-28 18:16:43 -05:00
param.h
parport.h
patchkey.h
pci_regs.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2014-01-25 11:17:34 -08:00
pci.h
perf_event.h perf: Pass protection and flags bits through mmap2 interface 2014-06-09 12:21:04 +02:00
personality.h
pfkeyv2.h ipsec: add support of limited SA dump 2014-02-17 07:18:19 +01:00
pg.h
phantom.h
phonet.h
pkt_cls.h net: sched: cls_bpf: add BPF-based classifier 2013-10-29 17:33:17 -04:00
pkt_sched.h net: pkt_sched: PIE AQM scheme 2014-01-06 15:13:01 -05:00
pktcdvd.h
pmu.h
poll.h
posix_types.h
ppdev.h
ppp_defs.h
ppp-comp.h
ppp-ioctl.h include/uapi/linux/ppp-ioctl.h: pull in ppp_defs.h 2014-01-23 16:36:55 -08:00
pps.h
prctl.h mm, thp: add VM_INIT_DEF_MASK and PRCTL_THP_DISABLE 2014-04-07 16:35:52 -07:00
psci.h ARM/ARM64: KVM: Add common header for PSCI related defines 2014-04-30 04:18:57 -07:00
ptp_clock.h ptp: introduce programmable pins. 2014-03-21 14:21:13 -04:00
ptrace.h ptrace: add ability to get/set signal-blocked mask 2013-07-03 16:08:01 -07:00
qnx4_fs.h
qnxtypes.h
quota.h
radeonfb.h
random.h random: introduce getrandom(2) system call 2014-08-05 16:41:22 -04:00
raw.h
rds.h
reboot.h
reiserfs_fs.h
reiserfs_xattr.h xattr: Constify ->name member of "struct xattr". 2013-07-25 19:30:03 +10:00
resource.h uapi: Use __kernel_long_t/__kernel_ulong_t in <linux/resource.h> 2014-01-20 14:44:17 -08:00
rfkill.h
romfs_fs.h
rose.h
route.h
rtc.h
rtnetlink.h tcp: introduce a per-route knob for quick ack 2013-06-19 23:06:51 -07:00
scc.h
sched.h sched: Move SCHED_RESET_ON_FORK into attr::sched_flags 2014-01-16 09:27:17 +01:00
screen_info.h
sctp.h net: sctp: implement rfc6458, 8.1.31. SCTP_DEFAULT_SNDINFO support 2014-07-16 14:40:04 -07:00
sdla.h
seccomp.h seccomp: implement SECCOMP_FILTER_FLAG_TSYNC 2014-07-18 12:13:40 -07:00
securebits.h
selinux_netlink.h
sem.h
serial_core.h serial: sc16is7xx 2014-04-25 10:08:48 -07:00
serial_reg.h serial/uart/8250: Add tunable RX interrupt trigger I/F of FIFO buffers 2014-07-17 18:23:35 -07:00
serial.h
serio.h Input: add support for Wacom protocol 4 serial tablets 2014-07-20 14:33:23 -07:00
shm.h ipc,shm: document new limits in the uapi header 2014-06-06 16:08:14 -07:00
signal.h
signalfd.h
snmp.h tcp: snmp stats for Fast Open, SYN rtx, and data pkts 2014-03-03 15:58:03 -05:00
sock_diag.h
socket.h
sockios.h net_tstamp: Add SIOCGHWTSTAMP ioctl to match SIOCSHWTSTAMP 2013-11-19 19:07:21 +00:00
som.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
string.h
suspend_ioctls.h
swab.h
synclink.h
sysctl.h ipv6: Allow accepting RA from local IP addresses. 2014-07-01 12:16:24 -07:00
sysinfo.h
taskstats.h
tcp_metrics.h tcp: switch rtt estimations to usec resolution 2014-02-26 17:08:40 -05:00
tcp.h tcp: add pacing_rate information into tcp_info 2014-02-14 16:09:43 -05:00
telephony.h
termios.h
time.h
times.h
timex.h uapi: Use __kernel_long_t in struct timex 2014-01-20 14:44:05 -08:00
tiocl.h
tipc_config.h tipc: bump max configurable window size 2014-06-25 18:03:41 -07:00
tipc.h tipc: add ioctl to fetch link names 2014-04-26 12:13:24 -04:00
toshiba.h
tty_flags.h
tty.h
types.h
udf_fs_i.h
udp.h net: Make enabling of zero UDP6 csums more restrictive 2014-05-23 16:28:53 -04:00
uhid.h HID: uhid: Add UHID_CREATE2 + UHID_INPUT2 2014-04-01 18:27:33 +02:00
uinput.h Input: uinput - add UI_GET_VERSION ioctl 2014-07-21 14:30:42 -07:00
uio.h
ultrasound.h
un.h
unistd.h
unix_diag.h diag: warn about missing first netlink attribute 2013-11-28 18:16:43 -05:00
usbdevice_fs.h usbfs: Add support for allocating / freeing streams 2014-03-04 15:38:05 -08:00
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h [media] v4l2-common.h: remove __user annotation in struct v4l2_edid 2014-04-16 18:20:02 -03:00
v4l2-controls.h [media] v4l2-ctrls: add RX RDS controls 2014-07-25 19:27:51 -03:00
v4l2-dv-timings.h [media] v4l2-dv-timings.h: add CEA-861-F 4K timings 2014-04-16 18:27:08 -03:00
v4l2-mediabus.h [media] v4l: Add 12-bit YUV 4:2:2 media bus pixel codes 2014-05-13 13:48:29 -03:00
v4l2-subdev.h [media] v4l: Add support for DV timings ioctls on subdev nodes 2014-05-25 12:47:55 -03:00
veth.h
vfio.h drivers/vfio: EEH support for VFIO PCI device 2014-08-05 15:28:48 +10:00
vhost.h
videodev2.h [media] v4l2-ctrls: add new RDS TX controls 2014-07-25 19:26:14 -03:00
virtio_9p.h
virtio_balloon.h
virtio_blk.h include/uapi/linux/virtio_blk.h: introduce feature of VIRTIO_BLK_F_MQ 2014-07-01 10:51:01 -06:00
virtio_config.h virtio: VIRTIO_F_ANY_LAYOUT feature 2013-07-09 10:47:45 +09:30
virtio_console.h Simple warning fix for module sections. If too late to pull, no big deal. 2013-07-03 13:09:06 -07:00
virtio_ids.h
virtio_net.h uapi: Convert some uses of 6 to ETH_ALEN 2013-08-02 12:33:54 -07:00
virtio_pci.h virtio_pci: better macro exported in uapi 2013-05-20 12:08:09 +09:30
virtio_ring.h
virtio_rng.h
vm_sockets.h
vsp1.h [media] v4l: vsp1: Add LUT support 2013-12-11 09:25:20 -02:00
vt.h
wait.h
wanrouter.h
watchdog.h
wimax.h
wireless.h
x25.h
xattr.h xattr: guard against simultaneous glibc header inclusion 2014-04-03 16:21:06 -07:00
xfrm.h xfrm: rename struct xfrm_filter 2014-03-07 08:12:37 +01:00
zorro_ids.h zorro/UAPI: Disintegrate include/linux/zorro*.h 2013-11-26 11:09:08 +01:00
zorro.h zorro/UAPI: Use proper types (endianness/size) in <linux/zorro.h> 2013-11-26 11:09:09 +01:00