On Fri 14-06-13 15:30:34, Wanpeng Li wrote: > There is just one caller in fs-writeback.c call wb_do_writeback and > current codes unnecessary export it in header file, this patch fix > it by changing wb_do_writeback to static function. So what? Besides that git grep wb_do_writeback tells that mm/backing-dev.c: wb_do_writeback(me, 0); Have you tested this at all? > Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx> > --- > fs/fs-writeback.c | 2 +- > include/linux/writeback.h | 1 - > 2 files changed, 1 insertion(+), 2 deletions(-) > > diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c > index 3be5718..f892dec 100644 > --- a/fs/fs-writeback.c > +++ b/fs/fs-writeback.c > @@ -959,7 +959,7 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb) > /* > * Retrieve work items and do the writeback they describe > */ > -long wb_do_writeback(struct bdi_writeback *wb, int force_wait) > +static long wb_do_writeback(struct bdi_writeback *wb, int force_wait) > { > struct backing_dev_info *bdi = wb->bdi; > struct wb_writeback_work *work; > diff --git a/include/linux/writeback.h b/include/linux/writeback.h > index 579a500..e27468e 100644 > --- a/include/linux/writeback.h > +++ b/include/linux/writeback.h > @@ -94,7 +94,6 @@ int try_to_writeback_inodes_sb_nr(struct super_block *, unsigned long nr, > void sync_inodes_sb(struct super_block *); > long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages, > enum wb_reason reason); > -long wb_do_writeback(struct bdi_writeback *wb, int force_wait); > void wakeup_flusher_threads(long nr_pages, enum wb_reason reason); > void inode_wait_for_writeback(struct inode *inode); > > -- > 1.8.1.2 > -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>