Description of problem:
------------------------
There are occurrences of gf_log and gf_log_callingfn under posix.
These instances should be ported to the corresponding gf_msg functions

Version-Release number of selected component (if applicable):
-------------------------------------------------------------
RHGS 3.1 ( glusterfs-3.7.1-8el6rhs )

Info
-----
gf_log instances
================
[satheesaran@dhcppc1 posix]$ grep -r 'gf_log ' * -A1
src/posix.c: gf_log (this->name, GF_LOG_ERROR,
src/posix.c- "fsetxattr (fstat) failed on fd=%p: %s",

gf_log_callingfn instances
===========================
[satheesaran@dhcppc1 posix]$ grep -r 'gf_log_callingfn ' * -A1
src/posix-helpers.c: callingfn (this->name, GF_LOG_DEBUG, "failed to get gfid");

src/posix.c: gf_log_callingfn (this->name, GF_LOG_ERROR, "Invalid Args: "
src/posix.c-             "fd: %p inode: %p gfid:%s", fd, inode?inode:0,