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Commit 4762077c authored by Ryusuke Konishi's avatar Ryusuke Konishi
Browse files

nilfs2: get rid of macros for segment summary information 



This removes macros to test segment summary flags and redefines a few
relevant macros with inline functions.

Signed-off-by: default avatarRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
parent 85655484

fs/nilfs2/segbuf.h

+13 −11
Original line number Diff line number Diff line
@@ -54,17 +54,6 @@ struct nilfs_segsum_info { 
	sector_t		next;

};



/* macro for the flags */

#define NILFS_SEG_HAS_SR(sum)    ((sum)->flags & NILFS_SS_SR)

#define NILFS_SEG_LOGBGN(sum)    ((sum)->flags & NILFS_SS_LOGBGN)

#define NILFS_SEG_LOGEND(sum)    ((sum)->flags & NILFS_SS_LOGEND)

#define NILFS_SEG_DSYNC(sum)     ((sum)->flags & NILFS_SS_SYNDT)

#define NILFS_SEG_SIMPLEX(sum) \

	(((sum)->flags & (NILFS_SS_LOGBGN | NILFS_SS_LOGEND)) == \

	 (NILFS_SS_LOGBGN | NILFS_SS_LOGEND))



#define NILFS_SEG_EMPTY(sum)	((sum)->nblocks == (sum)->nsumblk)



/**

 * struct nilfs_segment_buffer - Segment buffer

 * @sb_super: back pointer to a superblock struct
@@ -141,6 +130,19 @@ int nilfs_segbuf_extend_payload(struct nilfs_segment_buffer *, 
				struct buffer_head **);

void nilfs_segbuf_fill_in_segsum(struct nilfs_segment_buffer *);



static inline int nilfs_segbuf_simplex(struct nilfs_segment_buffer *segbuf)

{

	unsigned int flags = segbuf->sb_sum.flags;



	return (flags & (NILFS_SS_LOGBGN | NILFS_SS_LOGEND)) ==

		(NILFS_SS_LOGBGN | NILFS_SS_LOGEND);

}



static inline int nilfs_segbuf_empty(struct nilfs_segment_buffer *segbuf)

{

	return segbuf->sb_sum.nblocks == segbuf->sb_sum.nsumblk;

}



static inline void

nilfs_segbuf_add_segsum_buffer(struct nilfs_segment_buffer *segbuf,

			       struct buffer_head *bh)

fs/nilfs2/segment.c

+4 −4
Original line number Diff line number Diff line
@@ -1914,12 +1914,12 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci) 
			}

		}



		if (!NILFS_SEG_SIMPLEX(&segbuf->sb_sum)) {

			if (NILFS_SEG_LOGBGN(&segbuf->sb_sum)) {

		if (!nilfs_segbuf_simplex(segbuf)) {

			if (segbuf->sb_sum.flags & NILFS_SS_LOGBGN) {

				set_bit(NILFS_SC_UNCLOSED, &sci->sc_flags);

				sci->sc_lseg_stime = jiffies;

			}

			if (NILFS_SEG_LOGEND(&segbuf->sb_sum))

			if (segbuf->sb_sum.flags & NILFS_SS_LOGEND)

				clear_bit(NILFS_SC_UNCLOSED, &sci->sc_flags);

		}

	}
@@ -2082,7 +2082,7 @@ static int nilfs_segctor_do_construct(struct nilfs_sc_info *sci, int mode) 


		/* Avoid empty segment */

		if (sci->sc_stage.scnt == NILFS_ST_DONE &&

		    NILFS_SEG_EMPTY(&sci->sc_curseg->sb_sum)) {

		    nilfs_segbuf_empty(sci->sc_curseg)) {

			nilfs_segctor_abort_construction(sci, nilfs, 1);

			goto out;

		}