forked from luck/tmp_suning_uos_patched
18d98f6c04
The pnfs-objects protocol mandates that we autologin into devices not present in the system, according to information specified in the get_device_info returned from the server. The Protocol specifies two login hints. 1. An IP address:port combination 2. A string URI which is constructed as a URL with a protocol prefix followed by :// and a string as address. For each protocol prefix the string-address format might be different. We only support the second option. The first option is just redundant to the second one. NOTE: The Kernel part of autologin does not parse the URI string. It just channels it to a user-mode script. So any new login protocols should only update the user-mode script which is a part of the nfs-utils package, but the Kernel need not change. We implement the autologin by using the call_usermodehelper() API. (Thanks to Steve Dickson <steved@redhat.com> for pointing it out) So there is no running daemon needed, and/or special setup. We Add the osd_login_prog Kernel module parameters which defaults to: /sbin/osd_login Kernel try's to upcall the program specified in osd_login_prog. If the file is not found or the execution fails Kernel will disable any farther upcalls, by zeroing out osd_login_prog, Until Admin re-enables it by setting the osd_login_prog parameter to a proper program. Also add text about the osd_login program command line API to: Documentation/filesystems/nfs/pnfs.txt and documentation of the new osd_login_prog module parameter to: Documentation/kernel-parameters.txt TODO: Add timeout option in the case osd_login program gets stuck Signed-off-by: Sachin Bhamare <sbhamare@panasas.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> |
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.. | ||
caching | ||
configfs | ||
nfs | ||
pohmelfs | ||
9p.txt | ||
00-INDEX | ||
adfs.txt | ||
affs.txt | ||
afs.txt | ||
autofs4-mount-control.txt | ||
automount-support.txt | ||
befs.txt | ||
bfs.txt | ||
btrfs.txt | ||
ceph.txt | ||
cifs.txt | ||
coda.txt | ||
cramfs.txt | ||
debugfs.txt | ||
devpts.txt | ||
directory-locking | ||
dlmfs.txt | ||
dnotify_test.c | ||
dnotify.txt | ||
ecryptfs.txt | ||
exofs.txt | ||
ext2.txt | ||
ext3.txt | ||
ext4.txt | ||
fiemap.txt | ||
files.txt | ||
fuse.txt | ||
gfs2-glocks.txt | ||
gfs2-uevents.txt | ||
gfs2.txt | ||
hfs.txt | ||
hfsplus.txt | ||
hpfs.txt | ||
inotify.txt | ||
isofs.txt | ||
jfs.txt | ||
Locking | ||
locks.txt | ||
logfs.txt | ||
Makefile | ||
mandatory-locking.txt | ||
ncpfs.txt | ||
nilfs2.txt | ||
ntfs.txt | ||
ocfs2.txt | ||
omfs.txt | ||
path-lookup.txt | ||
porting | ||
proc.txt | ||
quota.txt | ||
ramfs-rootfs-initramfs.txt | ||
relay.txt | ||
romfs.txt | ||
seq_file.txt | ||
sharedsubtree.txt | ||
spufs.txt | ||
squashfs.txt | ||
sysfs-pci.txt | ||
sysfs-tagging.txt | ||
sysfs.txt | ||
sysv-fs.txt | ||
tmpfs.txt | ||
ubifs.txt | ||
udf.txt | ||
ufs.txt | ||
vfat.txt | ||
vfs.txt | ||
xfs-delayed-logging-design.txt | ||
xfs.txt | ||
xip.txt |