K 10
svn:author
V 3
alc
K 8
svn:date
V 27
1999-04-21T05:56:45.000000Z
K 7
svn:log
V 447
Address several problems in vn_read and vn_write:

1. Make read-ahead work for pread and aio_read.

2. Fix one place where a comparison of uio_offset with -1
   wasn't updated to use FOF_OFFSET.

3. Honor O_APPEND in the FOF_OFFSET case.

In addition, use the variable name "ioflag" in both vn_read and
vn_write to avoid possible confusion between the variable "flag"
and the parameter "flags".

Submitted by:	Bruce Evans <bde@zeta.org.au> and me

END