diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-01-25 14:34:34 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-02-03 07:33:33 +0100 |
| commit | e3e2762bd3c5e02780618fc42f5b0049a3bedb30 (patch) | |
| tree | c357522685ee1cc136f7ca3c7298d33c221e3e9c | |
| parent | mm: use an on-stack bio for synchronous swapin (diff) | |
| download | linux-e3e2762bd3c5e02780618fc42f5b0049a3bedb30.tar.xz linux-e3e2762bd3c5e02780618fc42f5b0049a3bedb30.zip | |
mm: remove the __swap_writepage return value
__swap_writepage always returns 0.
Link: https://lkml.kernel.org/r/20230125133436.447864-6-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/page_io.c | 23 | ||||
| -rw-r--r-- | mm/swap.h | 2 |
2 files changed, 10 insertions, 15 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index d47def70e81f..3ba5a6e99030 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -177,11 +177,11 @@ bad_bmap: int swap_writepage(struct page *page, struct writeback_control *wbc) { struct folio *folio = page_folio(page); - int ret = 0; + int ret; if (folio_free_swap(folio)) { folio_unlock(folio); - goto out; + return 0; } /* * Arch code may have to preserve more data than just the page @@ -191,17 +191,16 @@ int swap_writepage(struct page *page, struct writeback_control *wbc) if (ret) { folio_mark_dirty(folio); folio_unlock(folio); - goto out; + return ret; } if (frontswap_store(&folio->page) == 0) { folio_start_writeback(folio); folio_unlock(folio); folio_end_writeback(folio); - goto out; + return 0; } - ret = __swap_writepage(&folio->page, wbc); -out: - return ret; + __swap_writepage(&folio->page, wbc); + return 0; } static inline void count_swpout_vm_event(struct page *page) @@ -288,7 +287,7 @@ static void sio_write_complete(struct kiocb *iocb, long ret) mempool_free(sio, sio_pool); } -static int swap_writepage_fs(struct page *page, struct writeback_control *wbc) +static void swap_writepage_fs(struct page *page, struct writeback_control *wbc) { struct swap_iocb *sio = NULL; struct swap_info_struct *sis = page_swap_info(page); @@ -325,11 +324,9 @@ static int swap_writepage_fs(struct page *page, struct writeback_control *wbc) } if (wbc->swap_plug) *wbc->swap_plug = sio; - - return 0; } -int __swap_writepage(struct page *page, struct writeback_control *wbc) +void __swap_writepage(struct page *page, struct writeback_control *wbc) { struct bio *bio; int ret; @@ -347,7 +344,7 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc) ret = bdev_write_page(sis->bdev, swap_page_sector(page), page, wbc); if (!ret) { count_swpout_vm_event(page); - return 0; + return; } bio = bio_alloc(sis->bdev, 1, @@ -362,8 +359,6 @@ int __swap_writepage(struct page *page, struct writeback_control *wbc) set_page_writeback(page); unlock_page(page); submit_bio(bio); - - return 0; } void swap_write_unplug(struct swap_iocb *sio) diff --git a/mm/swap.h b/mm/swap.h index c8fdda601751..7c033d793f15 100644 --- a/mm/swap.h +++ b/mm/swap.h @@ -17,7 +17,7 @@ static inline void swap_read_unplug(struct swap_iocb *plug) } void swap_write_unplug(struct swap_iocb *sio); int swap_writepage(struct page *page, struct writeback_control *wbc); -int __swap_writepage(struct page *page, struct writeback_control *wbc); +void __swap_writepage(struct page *page, struct writeback_control *wbc); /* linux/mm/swap_state.c */ /* One swap address space for each 64M swap space */ |