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Commit bc31b86a authored by Wu Fengguang's avatar Wu Fengguang
Browse files

writeback: move MIN_WRITEBACK_PAGES to fs-writeback.c 



Fix compile error

 fs/fs-writeback.c:515:33: error: ‘PAGE_CACHE_SHIFT’ undeclared (first use in this function)

Reported-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Acked-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: default avatarWu Fengguang <fengguang.wu@intel.com>
parent bdaac490

fs/fs-writeback.c

+6 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/sched.h>

#include <linux/fs.h>

#include <linux/mm.h>

#include <linux/pagemap.h>

#include <linux/kthread.h>

#include <linux/freezer.h>

#include <linux/writeback.h>
@@ -29,6 +30,11 @@ 
#include <linux/tracepoint.h>

#include "internal.h"



/*

 * 4MB minimal write chunk size

 */

#define MIN_WRITEBACK_PAGES	(4096UL >> (PAGE_CACHE_SHIFT - 10))



/*

 * Passed into wb_writeback(), essentially a subset of writeback_control

 */

include/linux/writeback.h

+0 −5
Original line number Diff line number Diff line
@@ -25,11 +25,6 @@ DECLARE_PER_CPU(int, dirty_throttle_leaks); 
#define DIRTY_SCOPE		8

#define DIRTY_FULL_SCOPE	(DIRTY_SCOPE / 2)



/*

 * 4MB minimal write chunk size

 */

#define MIN_WRITEBACK_PAGES	(4096UL >> (PAGE_CACHE_SHIFT - 10))



struct backing_dev_info;



/*