ocfs2: return f_fsid info in ocfs2_statfs()
ocfs2: return f_fsid info in ocfs2_statfs()

Currently the f_fsid of struct kstatfs returned from ocfs2_statfs() is
undefined (vfs layer fills in 0 as default). Since in some conditions,
f_fsid value might be used in a (f_fsid, ino) pair to uniquely identify
a file, ocfs2 should return a unique defined f_fsid value from
ocfs2_statfs().

Because uuid_str is the same on big or litlle endian machine, it's
endian consistent to use osb->uuid_str to generate f_fsid value.

Signed-off-by: Coly Li <2f585d23d29573b0828f556beff8692b58f07d0f@suse.de>
Cc: Sunil Mushran <71202349b6bab84fd697c8fc05379fc0e6724c25@oracle.com>
Cc: Mark Fasheh <8f0bc92cac940f3e83deb53ced7a1f201bce5732@suse.com>
Signed-off-by: Joel Becker <823d0e2e55da83c1616b20ae9a15f9456fa076e5@oracle.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas