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authorChristoph Hellwig <hch@lst.de>2010-06-08 18:15:15 +0200
committerJens Axboe <jaxboe@fusionio.com>2010-06-11 12:58:08 +0200
commitc5444198ca210498e8ac0ba121b4cd3537aa12f7 (patch)
treec423d38fe1ac7f51a48e455a19ecbe2354811fca /mm
parentb8c2f3474f1077599ec6e90c2f263f17055cc3d8 (diff)
downloadlinux-2.6.34-ux500-c5444198ca210498e8ac0ba121b4cd3537aa12f7.tar.gz
writeback: simplify and split bdi_start_writeback
bdi_start_writeback now never gets a superblock passed, so we can just remove that case. And to further untangle the code and flatten the call stack split it into two trivial helpers for it's two callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'mm')
-rw-r--r--mm/page-writeback.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index bbd396ac954..54f28bd493d 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -597,7 +597,7 @@ static void balance_dirty_pages(struct address_space *mapping,
(!laptop_mode && ((global_page_state(NR_FILE_DIRTY)
+ global_page_state(NR_UNSTABLE_NFS))
> background_thresh)))
- bdi_start_writeback(bdi, NULL, 0);
+ bdi_start_background_writeback(bdi);
}
void set_page_dirty_balance(struct page *page, int page_mkwrite)
@@ -705,9 +705,8 @@ void laptop_mode_timer_fn(unsigned long data)
* We want to write everything out, not just down to the dirty
* threshold
*/
-
if (bdi_has_dirty_io(&q->backing_dev_info))
- bdi_start_writeback(&q->backing_dev_info, NULL, nr_pages);
+ bdi_start_writeback(&q->backing_dev_info, nr_pages);
}
/*