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raid1: Add some macros to make code clearly. 

In a subsequent patch, we'll use some const parameters.
Using macros will make the code clearly.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
majianpeng 2013-11-14 15:16:18 +11:00 committed by NeilBrown
parent 07169fd478
commit 8e005f7c02
1 changed files with 4 additions and 4 deletions
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8
drivers/md/raid1.c
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@ -84,10 +84,12 @@ static void r1bio_pool_free(void *r1_bio, void *data)
}
#define RESYNC_BLOCK_SIZE (64*1024)
//#define RESYNC_BLOCK_SIZE PAGE_SIZE
#define RESYNC_DEPTH 32
#define RESYNC_SECTORS (RESYNC_BLOCK_SIZE >> 9)
#define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
#define RESYNC_WINDOW (2048*1024)
#define RESYNC_WINDOW (RESYNC_BLOCK_SIZE * RESYNC_DEPTH)
#define RESYNC_WINDOW_SECTORS (RESYNC_WINDOW >> 9)
#define NEXT_NORMALIO_DISTANCE (3 * RESYNC_WINDOW_SECTORS)
static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
{
@ -814,8 +816,6 @@ static void flush_pending_writes(struct r1conf *conf)
* there is no normal IO happeing. It must arrange to call
* lower_barrier when the particular background IO completes.
*/
#define RESYNC_DEPTH 32
static void raise_barrier(struct r1conf *conf)
{
spin_lock_irq(&conf->resync_lock);