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| author | Chuck Lever <chuck.lever@oracle.com> | 2007-03-29 16:47:47 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-04-30 22:17:09 -0700 |
| commit | 511d2e8855a065c8251d0c140ebc353854f1929e (patch) | |
| tree | d01c1327f1558ce46ee49dd1ba16da79e7720147 /include/linux/lockd | |
| parent | ca52fec152282ef73e5e882b847b36b1febbb1c6 (diff) | |
| download | blackbird-obmc-linux-511d2e8855a065c8251d0c140ebc353854f1929e.tar.gz blackbird-obmc-linux-511d2e8855a065c8251d0c140ebc353854f1929e.zip | |
NLM: Shrink the maximum request size of NLM4 requests
NLM version 4 requests estimate the call and reply header sizes rather
conservatively, using the very maximum size allowed in the protocol even
though Linux always uses only a small fraction of the allowable space.
Reduce the size of caller and lock arguments to conserve RPC buffer space
while XDR encoding NLM4 arguments. Add compile-time checks to ensure the
hostname string won't overflow NLM protocol maximums.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/lockd')
| -rw-r--r-- | include/linux/lockd/lockd.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index ac25b5649c59..f6a81e0b1b93 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -88,7 +88,7 @@ struct nlm_wait; /* * Memory chunk for NLM client RPC request. */ -#define NLMCLNT_OHSIZE (sizeof(utsname()->nodename)+10) +#define NLMCLNT_OHSIZE ((__NEW_UTS_LEN) + 10u) struct nlm_rqst { unsigned int a_flags; /* initial RPC task flags */ struct nlm_host * a_host; /* host handle */ |
