oprofile: make event buffer nonseekable
oprofile: make event buffer nonseekable

The event buffer cannot deal with seeks, so
we should forbid that outright.

Signed-off-by: Arnd Bergmann <f2c659f01951776204a6c5b902787d9019fbeebd@arndb.de>
Cc: Robert Richter <22a70fd9773e4de05b12c05075e9bcd605577f4d@amd.com>
Cc: 8ce19b9fd34293020f9a2708a1dd53c534e16452@lists.sf.net
Signed-off-by: Robert Richter <22a70fd9773e4de05b12c05075e9bcd605577f4d@amd.com>

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