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Subject[PATCH] mm: kill page_queue_congested()
Date

==
Subject: [PATCH] mm: kill page_queue_congested()

page_queue_congested() was introduced at 2002.
but it is unused until now at all.

it can be removed.


Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
---
mm/swapfile.c | 20 --------------------
1 file changed, 20 deletions(-)

Index: b/mm/swapfile.c
===================================================================
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1203,26 +1203,6 @@ out:
return ret;
}

-#if 0 /* We don't need this yet */
-#include <linux/backing-dev.h>
-int page_queue_congested(struct page *page)
-{
- struct backing_dev_info *bdi;
-
- BUG_ON(!PageLocked(page)); /* It pins the swap_info_struct */
-
- if (PageSwapCache(page)) {
- swp_entry_t entry = { .val = page_private(page) };
- struct swap_info_struct *sis;
-
- sis = get_swap_info_struct(swp_type(entry));
- bdi = sis->bdev->bd_inode->i_mapping->backing_dev_info;
- } else
- bdi = page->mapping->backing_dev_info;
- return bdi_write_congested(bdi);
-}
-#endif
-
asmlinkage long sys_swapoff(const char __user * specialfile)
{
struct swap_info_struct * p = NULL;



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