linux/net/sunrpc
NeilBrown 4452435948 [PATCH] knfsd: Replace two page lists in struct svc_rqst with one
We are planning to increase RPCSVC_MAXPAGES from about 8 to about 256.  This
means we need to be a bit careful about arrays of size RPCSVC_MAXPAGES.

struct svc_rqst contains two such arrays.  However the there are never more
that RPCSVC_MAXPAGES pages in the two arrays together, so only one array is
needed.

The two arrays are for the pages holding the request, and the pages holding
the reply.  Instead of two arrays, we can simply keep an index into where the
first reply page is.

This patch also removes a number of small inline functions that probably
server to obscure what is going on rather than clarify it, and opencode the
needed functionality.

Also remove the 'rq_restailpage' variable as it is *always* 0.  i.e.  if the
response 'xdr' structure has a non-empty tail it is always in the same pages
as the head.

 check counters are initilised and incr properly
 check for consistant usage of ++ etc
 maybe extra some inlines for common approach
 general review

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Magnus Maatta <novell@kiruna.se>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04 07:55:15 -07:00
..
auth_gss [PATCH] knfsd: Replace two page lists in struct svc_rqst with one 2006-10-04 07:55:15 -07:00
auth_null.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
auth_unix.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
auth.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
cache.c [PATCH] knfsd: fix race related problem when adding items to and svcrpc auth cache 2006-08-06 08:57:47 -07:00
clnt.c [PATCH] namespaces: utsname: switch to using uts namespaces 2006-10-02 07:57:21 -07:00
Makefile [PATCH] RPC: introduce client-side transport switch 2005-09-23 12:38:12 -04:00
pmap_clnt.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
rpc_pipe.c [PATCH] r/o bind mount prepwork: inc_nlink() helper 2006-10-01 00:39:30 -07:00
sched.c [PATCH] Really ignore kmem_cache_destroy return value 2006-09-27 08:26:10 -07:00
socklib.c [NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETE 2006-09-22 14:53:53 -07:00
stats.c [NET]: Conversions from kmalloc+memset to k(z|c)alloc. 2006-07-21 14:51:30 -07:00
sunrpc_syms.c [PATCH] knfsd: add svc_set_num_threads 2006-10-02 07:57:19 -07:00
svc.c [PATCH] knfsd: Replace two page lists in struct svc_rqst with one 2006-10-04 07:55:15 -07:00
svcauth_unix.c [PATCH] knfsd: remove an unused variable from auth_unix_lookup() 2006-10-02 07:57:17 -07:00
svcauth.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
svcsock.c [PATCH] knfsd: Replace two page lists in struct svc_rqst with one 2006-10-04 07:55:15 -07:00
sysctl.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
timer.c SUNRPC: remove extraneous header inclusions 2006-09-22 23:24:47 -04:00
xdr.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
xprt.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00
xprtsock.c [SUNRPC]: trivial endianness annotations 2006-09-28 18:01:21 -07:00