linux.git/net/sunrpc, branch v2.6.15

SUNRPC: Fix "EPIPE" error on mount of rpcsec_gss-protected partitions

2005-12-20T04:12:21+00:00

 gss_create_upcall() should not error just because rpc.gssd closed the
 pipe on its end. Instead, it should requeue the pending requests and then
 retry.

 Signed-off-by: Trond Myklebust

RPC: Do not block on skb allocation

2005-12-20T04:11:54+00:00

 If we get something like the following,
 [  125.300636]  [] schedule_timeout+0x54/0xa5
 [  125.305931]  [] io_schedule_timeout+0x29/0x33
 [  125.311495]  [] blk_congestion_wait+0x70/0x85
 [  125.317058]  [] throttle_vm_writeout+0x69/0x7d
 [  125.322720]  [] shrink_zone+0xe0/0xfa
 [  125.327560]  [] shrink_caches+0x6d/0x6f
 [  125.332581]  [] try_to_free_pages+0xd0/0x1b5
 [  125.338056]  [] __alloc_pages+0x135/0x2e8
 [  125.343258]  [] tcp_sendmsg+0xaa0/0xb78
 [  125.348281]  [] inet_sendmsg+0x48/0x53
 [  125.353212]  [] sock_sendmsg+0xb8/0xd3
 [  125.358147]  [] kernel_sendmsg+0x42/0x4f
 [  125.363259]  [] sock_no_sendpage+0x5e/0x77
 [  125.368556]  [] xs_tcp_send_request+0x2af/0x375
 then the socket is blocked until memory is reclaimed, and no
 progress can ever be made.

 Try to access the emergency pools by using GFP_ATOMIC.

 Signed-off-by: Trond Myklebust

SUNRPC: Fix Oopsable condition in rpc_pipefs

2005-12-03T20:20:10+00:00

 The elements on rpci->in_upcall are tracked by the filp->private_data,
 which will ensure that they get released when the file is closed.

 The exception is if rpc_close_pipes() gets called first, since that
 sets rpci->ops to NULL.

 Signed-off-by: Trond Myklebust

SUNRPC: Funny looking code in __rpc_purge_upcall

2005-11-25T22:11:30+00:00

 In __rpc_purge_upcall (net/sunrpc/rpc_pipe.c), the newer code to clean up
 the in_upcall list has a typo.
 Thanks to Vince Busam  for spotting this!

 Signed-off-by: Trond Myklebust

[PATCH] knfsd: make sure nfsd doesn't hog a cpu forever

2005-11-15T16:59:19+00:00

Being kernel-threads, nfsd servers don't get pre-empted (depending on
CONFIG).  If there is a steady stream of NFS requests that can be served
from cache, an nfsd thread may hold on to a cpu indefinitely, which isn't
very friendly.

So it is good to have a cond_resched in there (just before looking for a
new request to serve), to make sure we play nice.

Signed-off-by: Neil Brown 
Acked-by: Ingo Molnar 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[NET]: Detect hardware rx checksum faults correctly

2005-11-10T21:01:24+00:00

Here is the patch that introduces the generic skb_checksum_complete
which also checks for hardware RX checksum faults.  If that happens,
it'll call netdev_rx_csum_fault which currently prints out a stack
trace with the device name.  In future it can turn off RX checksum.

I've converted every spot under net/ that does RX checksum checks to
use skb_checksum_complete or __skb_checksum_complete with the
exceptions of:

* Those places where checksums are done bit by bit.  These will call
netdev_rx_csum_fault directly.

* The following have not been completely checked/converted:

ipmr
ip_vs
netfilter
dccp

This patch is based on patches and suggestions from Stephen Hemminger
and David S. Miller.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[PATCH] SUNRPC: don't reencode when looping in call transmit.

2005-11-10T03:31:33+00:00

If the call to xprt_transmit() fails due to socket buffer space
exhaustion, we do not need to re-encode the RPC message when we
loop back through call_transmit.

Re-encoding can actually end up triggering the WARN_ON() in
call_decode() if we re-encode something like a read() request and
auth->au_rslack has changed.
It can also cause us to increment the RPCSEC_GSS sequence number
beyond the limits of the allowed window.

Signed-off-by: Trond Myklebust 
Signed-off-by: Linus Torvalds

[PATCH] sanitize lookup_hash prototype

2005-11-09T15:56:00+00:00

->permission and ->lookup have a struct nameidata * argument these days to
pass down lookup intents.  Unfortunately some callers of lookup_hash don't
actually pass this one down.  For lookup_one_len() we don't have a struct
nameidata to pass down, but as this function is a library function only
used by filesystem code this is an acceptable limitation.  All other
callers should pass down the nameidata, so this patch changes the
lookup_hash interface to only take a struct nameidata argument and derives
the other two arguments to __lookup_hash from it.  All callers already have
the nameidata argument available so this is not a problem.

At the same time I'd like to deprecate the lookup_hash interface as there
are better exported interfaces for filesystem usage.  Before it can
actually be removed I need to fix up rpc_pipefs.

Signed-off-by: Christoph Hellwig 
Cc: Ram Pai 
Cc: Jeff Mahoney 
Cc: Al Viro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[NET]: kfree cleanup

2005-11-08T17:41:34+00:00

From: Jesper Juhl 

This is the net/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in net/.

Signed-off-by: Jesper Juhl 
Cc: "David S. Miller" 
Cc: Arnaldo Carvalho de Melo 
Acked-by: Marcel Holtmann 
Acked-by: YOSHIFUJI Hideaki 
Signed-off-by: Andrew Morton

[PATCH] knfsd: make sure svc_process call the correct pg_authenticate for multi-service port

2005-11-07T15:53:49+00:00

If an RPC socket is serving multiple programs, then the pg_authenticate of
the first program in the list is called, instead of pg_authenticate for the
program to be run.

This does not cause a problem with any programs in the current kernel, but
could confuse future code.

Also set pg_authenticate for nfsd_acl_program incase it ever gets used.

Signed-off-by: Neil Brown 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds