[CRIU] [PATCH 1/2] util: Move ilog2 out of compiler.h and fix it.

[Cyrill Gorcunov]

This helper has nothing to do with compiler thus
move it to util.h

Moreover, plain is_log2 as it was -- worked well
on natural numbers greater than 1 only, so rename
it to __is_log2 and add is_log2 wrapper.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---
 include/compiler.h | 2 --
 include/util.h     | 9 +++++++++
 parasite-syscall.c | 2 +-
 tty.c              | 2 +-
 4 files changed, 11 insertions(+), 4 deletions(-)

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