7  *  Swap reorganised 29.12.95, 
10  *  Add swap of shared pages through the page cache. 20.2.1998. Stephen Tweedie
18 #include <linux/swap.h>
28 #include "swap.h"
36 		 * We failed to write the page out to swap-space.  in __end_swap_bio_write()
44 		pr_alert_ratelimited("Write-error on swap-device (%u:%u:%llu)\n",  in __end_swap_bio_write()
63 		pr_alert_ratelimited("Read-error on swap-device (%u:%u:%llu)\n",  in __end_swap_bio_read()
207 	struct swap_info_struct *sis = swp_swap_info(folio->swap);  in swap_zeromap_folio_set()
226 	struct swap_info_struct *sis = swp_swap_info(folio->swap);  in swap_zeromap_folio_clear()
237  * We may have stale swap cache pages in memory: notice
264 	 * corruption due to other zero swap entries seeing concurrent updates.  in swap_writepage()
274 		 * occupied the same swap entries.  in swap_writepage()
353 		 * In the case of swap-over-nfs, this can be a  in sio_write_complete()
378 	struct swap_info_struct *sis = swp_swap_info(folio->swap);  in swap_writepage_fs()
380 	loff_t pos = swap_dev_pos(folio->swap);  in swap_writepage_fs()
455 	struct swap_info_struct *sis = swp_swap_info(folio->swap);  in __swap_writepage()
509 		pr_alert_ratelimited("Read-error on swap-device\n");  in sio_read_complete()
525 	if (WARN_ON_ONCE(swap_zeromap_batch(folio->swap, nr_pages,  in swap_read_folio_zeromap()
546 	struct swap_info_struct *sis = swp_swap_info(folio->swap);  in swap_read_folio_fs()
548 	loff_t pos = swap_dev_pos(folio->swap);  in swap_read_folio_fs()
588 	 * Keep this task valid during swap readpage because the oom killer may  in swap_read_folio_bdev_sync()
617 	struct swap_info_struct *sis = swp_swap_info(folio->swap);  in swap_read_folio()