This replaces s_dirt flag use in nilfs with a new flag added on the
nilfs object. The s_dirt flag was used to indicate if
sop->write_super() should be called, however the current version of
nilfs does not use the callback. Thus, it can be replaced with the
own flag.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Cc: Jiro SEKIBA <jir@xxxxxxxxx>
---
fs/nilfs2/segment.c | 11 +++++------
fs/nilfs2/super.c | 4 ++--
fs/nilfs2/the_nilfs.h | 2 ++
3 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index fa4abfc..c4fcdd1 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -1937,8 +1937,7 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
{
struct nilfs_segment_buffer *segbuf;
struct page *bd_page = NULL, *fs_page = NULL;
- struct nilfs_sb_info *sbi = sci->sc_sbi;
- struct the_nilfs *nilfs = sbi->s_nilfs;
+ struct the_nilfs *nilfs = sci->sc_sbi->s_nilfs;
int update_sr = (sci->sc_super_root != NULL);
list_for_each_entry(segbuf, &sci->sc_write_logs, sb_list) {
@@ -2020,7 +2019,7 @@ static void nilfs_segctor_complete_write(struct nilfs_sc_info *sci)
if (update_sr) {
nilfs_set_last_segment(nilfs, segbuf->sb_pseg_start,
segbuf->sb_sum.seg_seq, nilfs->ns_cno++);
- sbi->s_super->s_dirt = 1;
+ set_nilfs_sb_dirty(nilfs);
clear_bit(NILFS_SC_HAVE_DELTA, &sci->sc_flags);
clear_bit(NILFS_SC_DIRTY, &sci->sc_flags);
@@ -2645,6 +2644,7 @@ static int nilfs_segctor_flush_mode(struct nilfs_sc_info *sci)
static int nilfs_segctor_thread(void *arg)
{
struct nilfs_sc_info *sci = (struct nilfs_sc_info *)arg;
+ struct the_nilfs *nilfs = sci->sc_sbi->s_nilfs;
struct timer_list timer;
int timeout = 0;
@@ -2690,7 +2690,6 @@ static int nilfs_segctor_thread(void *arg)
} else {
DEFINE_WAIT(wait);
int should_sleep = 1;
- struct the_nilfs *nilfs;
prepare_to_wait(&sci->sc_wait_daemon, &wait,
TASK_INTERRUPTIBLE);
@@ -2711,8 +2710,8 @@ static int nilfs_segctor_thread(void *arg)
finish_wait(&sci->sc_wait_daemon, &wait);
timeout = ((sci->sc_state & NILFS_SEGCTOR_COMMIT) &&
time_after_eq(jiffies, sci->sc_timer->expires));
- nilfs = sci->sc_sbi->s_nilfs;
- if (sci->sc_super->s_dirt && nilfs_sb_need_update(nilfs))
+
+ if (nilfs_sb_dirty(nilfs) && nilfs_sb_need_update(nilfs))
set_nilfs_discontinued(nilfs);
}
goto loop;
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index f068270..92579cc 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -298,7 +298,7 @@ int nilfs_commit_super(struct nilfs_sb_info *sbi, int dupsb)
memcpy(sbp[1], sbp[0], nilfs->ns_sbsize);
nilfs->ns_sbwtime[1] = t;
}
- sbi->s_super->s_dirt = 0;
+ clear_nilfs_sb_dirty(nilfs);
return nilfs_sync_super(sbi, dupsb);
}
@@ -342,7 +342,7 @@ static int nilfs_sync_fs(struct super_block *sb, int wait)
err = nilfs_construct_segment(sb);
down_write(&nilfs->ns_sem);
- if (sb->s_dirt)
+ if (nilfs_sb_dirty(nilfs))
nilfs_commit_super(sbi, 1);
up_write(&nilfs->ns_sem);
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index fd057f8..e9795f1 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -38,6 +38,7 @@ enum {
the latest checkpoint was loaded */
THE_NILFS_DISCONTINUED, /* 'next' pointer chain has broken */
THE_NILFS_GC_RUNNING, /* gc process is running */
+ THE_NILFS_SB_DIRTY, /* super block is dirty */
};
/**
@@ -197,6 +198,7 @@ THE_NILFS_FNS(INIT, init)
THE_NILFS_FNS(LOADED, loaded)
THE_NILFS_FNS(DISCONTINUED, discontinued)
THE_NILFS_FNS(GC_RUNNING, gc_running)
+THE_NILFS_FNS(SB_DIRTY, sb_dirty)
/* Minimum interval of periodical update of superblocks (in seconds) */
#define NILFS_SB_FREQ 10
--
1.6.3.4
--
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