From: Chuck Lever Date: Fri, 21 Jan 2011 03:05:38 +0000 (+0000) Subject: NFS: Prevent memory allocation failure in nfsacl_encode() X-Git-Tag: v2.6.38-rc3~1^2~9 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f61f6da0d53842e849bab7f69e1431bd3de1136d;p=pandora-kernel.git NFS: Prevent memory allocation failure in nfsacl_encode() nfsacl_encode() allocates memory in certain cases. This of course is not guaranteed to work. Since commit 9f06c719 "SUNRPC: New xdr_streams XDR encoder API", the kernel's XDR encoders can't return a result indicating possibly a failure, so a memory allocation failure in nfsacl_encode() has become fatal (ie, the XDR code Oopses) in some cases. However, the allocated memory is a tiny fixed amount, on the order of 40-50 bytes. We can easily use a stack-allocated buffer for this, with only a wee bit of nose-holding. Signed-off-by: Chuck Lever Signed-off-by: Trond Myklebust --- Reading git-diff-tree failed