From: Andrew Morton <akpm@osdl.org>

Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 fs/cachefiles/cf-bind.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/cachefiles/cf-bind.c~fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-log2-fix fs/cachefiles/cf-bind.c
--- a/fs/cachefiles/cf-bind.c~fs-cache-cachefiles-a-cache-that-backs-onto-a-mounted-filesystem-log2-fix
+++ a/fs/cachefiles/cf-bind.c
@@ -168,7 +168,7 @@ static int cachefiles_proc_add_cache(str
 	cache->bsize = stats.f_bsize;
 	cache->bshift = 0;
 	if (stats.f_bsize < PAGE_SIZE)
-		cache->bshift = PAGE_SHIFT - long_log2(stats.f_bsize);
+		cache->bshift = PAGE_SHIFT - ilog2(stats.f_bsize);
 
 	_debug("blksize %u (shift %u)",
 	       cache->bsize, cache->bshift);
_