zram: use size_t instead of u16

Some architectures (eg, hexagon and PowerPC) could use PAGE_SHIFT of 16
or more.  In these cases u16 is not sufficiently large to represent a
compressed page's size so use size_t.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Reported-by: Weijie Yang <weijie.yang@samsung.com>
Acked-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 023b409f9dac4cdea3322009f2e592068558690c)
Signed-off-by: Alex Shi <alex.shi@linaro.org>

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 674b8517694db727529e2252267ebca93be7409f..efd9e4f1605cf8dc653556228bea419be5c70662 100644 (file)
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -336,7 +336,7 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index)
        unsigned char *cmem;
        struct zram_meta *meta = zram->meta;
        unsigned long handle;
-       u16 size;
+       size_t size;
 
        read_lock(&meta->tb_lock);
        handle = meta->table[index].handle;