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Commit e49ee36d authored by Dan Magenheimer's avatar Dan Magenheimer Committed by Greg Kroah-Hartman
Browse files

staging: zcache: fix ppc64 and other arches where PAGE_SIZE!=4K 



Replace raw constant 12 with PAGE_SHIFT to fix non-x86 arches and
provoke build failure if PAGE_SHIFT is too big

Signed-off-by: default avatarDan Magenheimer <dan.magenheimer@oracle.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c4048c64

drivers/staging/zcache/zbud.c

+5 −2
Original line number Diff line number Diff line
@@ -103,8 +103,8 @@ struct zbudpage { 
		struct {

			unsigned long space_for_flags;

			struct {

				unsigned zbud0_size:12;

				unsigned zbud1_size:12;

				unsigned zbud0_size: PAGE_SHIFT;

				unsigned zbud1_size: PAGE_SHIFT;

				unsigned unevictable:2;

			};

			struct list_head budlist;
@@ -112,6 +112,9 @@ struct zbudpage { 
		};

	};

};

#if (PAGE_SHIFT * 2) + 2 > BITS_PER_LONG

#error "zbud won't work for this arch, PAGE_SIZE is too large"

#endif



struct zbudref {

	union {