When we are running out of free space on a filesystem, we want to flush dirty pages in the filesystem so that blocks reserved via delayed allocation get written and unnecessary block reservation is released. Export wakeup_pdflush() so that filesystem can start such writeback. Signed-off-by: Jan Kara <jack@xxxxxxx> --- mm/page-writeback.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index bb553c3..43af1cf 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -730,6 +730,7 @@ int wakeup_pdflush(long nr_pages) global_page_state(NR_UNSTABLE_NFS); return pdflush_operation(background_writeout, nr_pages); } +EXPORT_SYMBOL(wakeup_pdflush); static void wb_timer_fn(unsigned long unused); static void laptop_timer_fn(unsigned long unused); -- 1.6.0.2 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
