Commit fd8d2951 authored by David Sterba's avatar David Sterba
Browse files

btrfs: convert extent_io page op defines to enum bits 



Reviewed-by: default avatarJosef Bacik <josef@toxicpanda.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent c7321b76

fs/btrfs/extent_io.h

+10 −7
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 
#include <linux/btrfs_tree.h>

#include "compression.h"

#include "ulist.h"

#include "misc.h"



enum {

	EXTENT_BUFFER_UPTODATE,
@@ -29,13 +30,15 @@ enum { 
};



/* these are flags for __process_pages_contig */

#define PAGE_UNLOCK		(1 << 0)

enum {

	ENUM_BIT(PAGE_UNLOCK),

	/* Page starts writeback, clear dirty bit and set writeback bit */

#define PAGE_START_WRITEBACK	(1 << 1)

#define PAGE_END_WRITEBACK	(1 << 2)

#define PAGE_SET_ORDERED	(1 << 3)

#define PAGE_SET_ERROR		(1 << 4)

#define PAGE_LOCK		(1 << 5)

	ENUM_BIT(PAGE_START_WRITEBACK),

	ENUM_BIT(PAGE_END_WRITEBACK),

	ENUM_BIT(PAGE_SET_ORDERED),

	ENUM_BIT(PAGE_SET_ERROR),

	ENUM_BIT(PAGE_LOCK),

};



/*

 * page->private values.  Every page that is controlled by the extent