diff options
Diffstat (limited to 'mm/page_io.c')
-rw-r--r-- | mm/page_io.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index d4840ecbf8f..dbffec0d78c 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -147,48 +147,3 @@ int swap_readpage(struct file *file, struct page *page) out: return ret; } - -#ifdef CONFIG_SOFTWARE_SUSPEND -/* - * A scruffy utility function to read or write an arbitrary swap page - * and wait on the I/O. The caller must have a ref on the page. - * - * We use end_swap_bio_read() even for writes, because it happens to do what - * we want. - */ -int rw_swap_page_sync(int rw, swp_entry_t entry, struct page *page, - struct bio **bio_chain) -{ - struct bio *bio; - int ret = 0; - int bio_rw; - - lock_page(page); - - bio = get_swap_bio(GFP_KERNEL, entry.val, page, end_swap_bio_read); - if (bio == NULL) { - unlock_page(page); - ret = -ENOMEM; - goto out; - } - - bio_rw = rw; - if (!bio_chain) - bio_rw |= (1 << BIO_RW_SYNC); - if (bio_chain) - bio_get(bio); - submit_bio(bio_rw, bio); - if (bio_chain == NULL) { - wait_on_page_locked(page); - - if (!PageUptodate(page) || PageError(page)) - ret = -EIO; - } - if (bio_chain) { - bio->bi_private = *bio_chain; - *bio_chain = bio; - } -out: - return ret; -} -#endif |