From: Chris Mason <mason@suse.com>
Some latency improvements for the reiserfs data=ordered code from Takashi.
---
25-akpm/fs/reiserfs/journal.c | 16 ++++------------
1 files changed, 4 insertions(+), 12 deletions(-)
diff -puN fs/reiserfs/journal.c~reiserfs-ordered-lat fs/reiserfs/journal.c
--- 25/fs/reiserfs/journal.c~reiserfs-ordered-lat Wed Mar 24 15:14:54 2004
+++ 25-akpm/fs/reiserfs/journal.c Wed Mar 24 15:14:54 2004
@@ -788,8 +788,7 @@ static int write_ordered_buffers(spinloc
if (chunk.nr)
write_ordered_chunk(&chunk);
wait_on_buffer(bh);
- if (need_resched)
- schedule();
+ cond_resched();
spin_lock(lock);
goto loop_next;
}
@@ -803,11 +802,7 @@ static int write_ordered_buffers(spinloc
}
loop_next:
put_bh(bh);
- if (chunk.nr == 0 && need_resched) {
- spin_unlock(lock);
- schedule();
- spin_lock(lock);
- }
+ cond_resched_lock(lock);
}
if (chunk.nr) {
spin_unlock(lock);
@@ -828,11 +823,7 @@ loop_next:
if (!buffer_uptodate(bh))
ret = -EIO;
put_bh(bh);
- if (need_resched()) {
- spin_unlock(lock);
- schedule();
- spin_lock(lock);
- }
+ cond_resched_lock(lock);
}
spin_unlock(lock);
return ret;
@@ -3469,6 +3460,7 @@ static int do_journal_end(struct reiserf
next = cn->next ;
free_cnode(p_s_sb, cn) ;
cn = next ;
+ cond_resched();
}
/* we are done with both the c_bh and d_bh, but
_