delta/nfs-utils.git/utils/mountd/cache.c, branch pseudo-v4root

Merge git://linux-nfs.org/~steved/nfs-utils-exp into pseudo-v4root

2008-03-26T13:51:27+00:00

Stop rpc.mountd from probing all known devices which causes

2008-03-13T15:30:18+00:00

idle disks to spin up for basically no reason.

Signed-off-by: Steinar H. Gunderson 
Signed-off-by: Steve Dickson

Add in the hooks to the main line mountd code that are needed for

2008-02-27T14:00:39+00:00

dynamic pseudo root support

Signed-off-by: Steve Dickson

Cleaned up some typos that were found in the various

2008-02-09T12:48:48+00:00

places in the mountd code.

Signed-off-by: Steve Dickson 
Signed-off-by: Frank Filz

Fix bug when both crossmnt and fsid are set.

2008-01-19T12:59:26+00:00

When exported a filesystems with option inherited (by the crossmnt
option) from a higherlevel filesystem, ignore filesystem specific
options like FSID and explicit UUID.

Signed-off-by: NeilBrown 
Signed-off-by: Steve Dickson

Automatically set 'nohide' on referral exports.

2008-01-09T18:13:31+00:00

Signed-off-by: Steve Dickson

When mountd gets a request to export a mountpoint which is not

2007-11-03T14:40:36+00:00

explicitly exported, but is below an export point that is flagged as
"crossmnt", it passes the wrong path name to the kernel for the
  "filehandle -> directory"
mapping.

This can badly confuse the NFS client, and is certainly wrong.
So use the correct path names.

Signed-off-by: Neil Brown 
Signed-off-by: Steve Dickson

rpc.mountd: add new mode for handling netgroup-heavy configurations

2007-09-28T01:39:57+00:00

If a host is a member of a large number of netgroups, it becomes easily
possible for client_compose to generate a m_hostname string that
overflows the maximum string length allowed by the kernel caches.

This patch adds a new mode for mountd where it will map IP address to IP
address in the auth.unix.ip cache. When this enabled, mountd doesn't
bother using client_compose to build the m_hostname string. It just
populates it with the dotted-quad ip address. When mountd handles a
mount request, it then has an IP address and a path. It then calls
client_check to check the host against export entries where the path has
already matched.

Since we don't bother looking up netgroups which have no relation to the
mount, this can be a big performance gain in netgroup-heavy
configurations.  The downside is that every host has a corresponding
entry in the nfsd.export and nfsd.fh caches as well as the auth.unix.ip
cache.

The new behavior is automatically enabled if the length of all of the
concatenated netgroup names in the export table is longer than half
NFSCLNT_IDMAX. The rationale for this logic is that this should allow
for a host to be a member of a long list of netgroups while still
allowing for other matches.

Signed-off-by: Jeff Layton 
Acked-by: Steve Dickson 
Signed-off-by: Neil Brown

rpc.mountd: create client_resolve and change client_compose to take a hostent arg

2007-09-28T01:39:57+00:00

This moves the resolution of IP address to hostent into a helper function
and has other functions call it. Having client_compose take a hostent arg
allows us to avoid an extra hostname lookup in the auth_authenticate
codepath as well. Instead of redoing this lookup in client_compose, we can
simply reuse the hostent that was already generated in auth_authenticate.

Signed-off-by: Jeff Layton 
Acked-by: Steve Dickson 
Signed-off-by: Neil Brown

rpc.mountd: fix memory leak and error handling in nfsd_fh

2007-09-28T01:39:56+00:00

nfsd_fh() uses strdup for creating found_path and doesn't check the
return value. It also doesn't free this memory when the function
returns. Check the return value of strdup and return immediately
if it's NULL. Also, free found_path on exit.

Signed-off-by: Jeff Layton 
Acked-by: Steve Dickson 
Signed-off-by: Neil Brown