block/mm: make bdev_ops->rw_page() take a bool for read/write
Commit abf545484d31 changed it from an 'rw' flags type to the
newer ops based interface, but now we're effectively leaking
some bdev internals to the rest of the kernel. Since we only
care about whether it's a read or a write at that level, just
pass in a bool 'is_write' parameter instead.
Then we can also move op_is_write() and friends back under
CONFIG_BLOCK protection.
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 14b28ff..f254eb2 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -18,17 +18,6 @@
typedef void (bio_end_io_t) (struct bio *);
typedef void (bio_destructor_t) (struct bio *);
-enum req_op {
- REQ_OP_READ,
- REQ_OP_WRITE,
- REQ_OP_DISCARD, /* request to discard sectors */
- REQ_OP_SECURE_ERASE, /* request to securely erase sectors */
- REQ_OP_WRITE_SAME, /* write same block many times */
- REQ_OP_FLUSH, /* request for cache flush */
-};
-
-#define REQ_OP_BITS 3
-
#ifdef CONFIG_BLOCK
/*
* main unit of I/O for the block layer and lower layers (ie drivers and
@@ -239,6 +228,17 @@
#define REQ_HASHED (1ULL << __REQ_HASHED)
#define REQ_MQ_INFLIGHT (1ULL << __REQ_MQ_INFLIGHT)
+enum req_op {
+ REQ_OP_READ,
+ REQ_OP_WRITE,
+ REQ_OP_DISCARD, /* request to discard sectors */
+ REQ_OP_SECURE_ERASE, /* request to securely erase sectors */
+ REQ_OP_WRITE_SAME, /* write same block many times */
+ REQ_OP_FLUSH, /* request for cache flush */
+};
+
+#define REQ_OP_BITS 3
+
typedef unsigned int blk_qc_t;
#define BLK_QC_T_NONE -1U
#define BLK_QC_T_SHIFT 16