zram: make is_partial_io/valid_io_request/page_zero_filled return boolean

Make is_partial_io()/valid_io_request()/page_zero_filled() return boolean,
since each function only uses either one or zero as its return value.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 3e8d8ffda54d968a9a5a47fc68f711ed8551115e..81a557c33a1f8b4a41b19f39b58d8c0e0e40ae35 100644 (file)
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -106,7 +106,7 @@ static void zram_set_obj_size(struct zram_meta *meta,
        meta->table[index].value = (flags << ZRAM_FLAG_SHIFT) | size;
 }
 
-static inline int is_partial_io(struct bio_vec *bvec)
+static inline bool is_partial_io(struct bio_vec *bvec)
 {
        return bvec->bv_len != PAGE_SIZE;
 }
@@ -114,25 +114,25 @@ static inline int is_partial_io(struct bio_vec *bvec)
 /*
  * Check if request is within bounds and aligned on zram logical blocks.
  */
-static inline int valid_io_request(struct zram *zram,
+static inline bool valid_io_request(struct zram *zram,
                sector_t start, unsigned int size)
 {
        u64 end, bound;
 
        /* unaligned request */
        if (unlikely(start & (ZRAM_SECTOR_PER_LOGICAL_BLOCK - 1)))
-               return 0;
+               return false;
        if (unlikely(size & (ZRAM_LOGICAL_BLOCK_SIZE - 1)))
-               return 0;
+               return false;
 
        end = start + (size >> SECTOR_SHIFT);
        bound = zram->disksize >> SECTOR_SHIFT;
        /* out of range range */
        if (unlikely(start >= bound || end > bound || start > end))
-               return 0;
+               return false;
 
        /* I/O request is valid */
-       return 1;
+       return true;
 }
 
 static void update_position(u32 *index, int *offset, struct bio_vec *bvec)
@@ -157,7 +157,7 @@ static inline void update_used_max(struct zram *zram,
        } while (old_max != cur_max);
 }
 
-static int page_zero_filled(void *ptr)
+static bool page_zero_filled(void *ptr)
 {
        unsigned int pos;
        unsigned long *page;
@@ -166,10 +166,10 @@ static int page_zero_filled(void *ptr)
 
        for (pos = 0; pos != PAGE_SIZE / sizeof(*page); pos++) {
                if (page[pos])
-                       return 0;
+                       return false;
        }
 
-       return 1;
+       return true;
 }
 
 static void handle_zero_page(struct bio_vec *bvec)