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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: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2010-05-23 21:48:36 +09:00
parent 85655484f8
commit 4762077c7b
2 changed files with 17 additions and 15 deletions
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24
fs/nilfs2/segbuf.h
View File

@ -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)

8
fs/nilfs2/segment.c
View File

@ -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;
}