Chuck Lever f61f6da0d5 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 <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2011-01-25 15:24:47 -05:00

..

Makefile

…

nfsacl.c

NFS: Prevent memory allocation failure in nfsacl_encode()

2011-01-25 15:24:47 -05:00