K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2012-07-08T00:51:38.622333Z
K 7
svn:log
V 307
Unbreak handling of descriptors opened with O_EXEC by fexecve(2).

While here return EBADF for descriptors opened for writing (previously it was ETXTBSY).

Add fgetvp_exec function which performs appropriate checks.

PR:		kern/169651
In collaboration with:	kib
Approved by:	trasz (mentor)
MFC after:	1 week

END