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mm: kill page_queue_congested()

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page_queue_congested() was introduced in 2002, but it was never used

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
KOSAKI Motohiro 2009-01-06 14:40:30 -08:00 • committed by Linus Torvalds
parent 9f572e3f96
commit 084f71ae5c
1 changed files with 0 additions and 20 deletions
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20
mm/swapfile.c
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@ -1372,26 +1372,6 @@ out:
return ret; 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;
VM_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) asmlinkage long sys_swapoff(const char __user * specialfile)
{ {
struct swap_info_struct * p = NULL; struct swap_info_struct * p = NULL;