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authorNeilBrown <neilb@suse.de>2006-04-10 22:55:20 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-04-11 06:18:51 -0700
commit7775f4c85dcbd1175f21b2fbb7221c79ec70b722 (patch)
tree40bc57f1192d19942630d7490d50f387d533c160 /fs/nfsd/nfs3proc.c
parentdf2487cff5e5be2877594f269b014652536d68bb (diff)
downloadlinux-7775f4c85dcbd1175f21b2fbb7221c79ec70b722.tar.gz
[PATCH] knfsd: Correct reserved reply space for read requests.
NFSd makes sure there is enough space to hold the maximum possible reply
before accepting a request.  The units for this maximum is (4byte) words.
However in three places, particularly for read request, the number given is
a number of bytes.

This means too much space is reserved which is slightly wasteful.

This is the sort of patch that could uncover a deeper bug, and it is not
critical, so it would be best for it to spend a while in -mm before going
in to mainline.

(akpm: target 2.6.17-rc2, 2.6.16.3 (approx))

Discovered-by: "Eivind  Sarto" <ivan@kasenna.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfsd/nfs3proc.c')
-rw-r--r--fs/nfsd/nfs3proc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 6d2dfed1de08..f61142afea44 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -682,7 +682,7 @@ static struct svc_procedure		nfsd_procedures3[22] = {
   PROC(lookup,	 dirop,		dirop,		fhandle2, RC_NOCACHE, ST+FH+pAT+pAT),
   PROC(access,	 access,	access,		fhandle,  RC_NOCACHE, ST+pAT+1),
   PROC(readlink, readlink,	readlink,	fhandle,  RC_NOCACHE, ST+pAT+1+NFS3_MAXPATHLEN/4),
-  PROC(read,	 read,		read,		fhandle,  RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE),
+  PROC(read,	 read,		read,		fhandle,  RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE/4),
   PROC(write,	 write,		write,		fhandle,  RC_REPLBUFF, ST+WC+4),
   PROC(create,	 create,	create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),
   PROC(mkdir,	 mkdir,		create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),