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authorChristoph Hellwig <hch@lst.de>2023-01-25 16:34:31 +0300
committerAndrew Morton <akpm@linux-foundation.org>2023-02-03 09:33:33 +0300
commita8c1408f870ef5308088b02c76082136b2c514ad (patch)
tree133eba948a6876550d9d20984907b54ec00b88a8 /mm/swap.h
parent7d28631786b2333c5d48ad25172eb159aaa2945f (diff)
downloadlinux-a8c1408f870ef5308088b02c76082136b2c514ad.tar.xz
mm: remove the swap_readpage return value
swap_readpage always returns 0, and no caller checks the return value. [akpm@linux-foundation.org: fix void-returning swap_readpage() stub, per Keith] Link: https://lkml.kernel.org/r/20230125133436.447864-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: 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>
Diffstat (limited to 'mm/swap.h')
-rw-r--r--mm/swap.h8
1 files changed, 3 insertions, 5 deletions
diff --git a/mm/swap.h b/mm/swap.h
index f78065c8ef52..c8fdda601751 100644
--- a/mm/swap.h
+++ b/mm/swap.h
@@ -8,8 +8,7 @@
/* linux/mm/page_io.c */
int sio_pool_init(void);
struct swap_iocb;
-int swap_readpage(struct page *page, bool do_poll,
- struct swap_iocb **plug);
+void swap_readpage(struct page *page, bool do_poll, struct swap_iocb **plug);
void __swap_read_unplug(struct swap_iocb *plug);
static inline void swap_read_unplug(struct swap_iocb *plug)
{
@@ -64,10 +63,9 @@ static inline unsigned int folio_swap_flags(struct folio *folio)
}
#else /* CONFIG_SWAP */
struct swap_iocb;
-static inline int swap_readpage(struct page *page, bool do_poll,
- struct swap_iocb **plug)
+static inline void swap_readpage(struct page *page, bool do_poll,
+ struct swap_iocb **plug)
{
- return 0;
}
static inline void swap_write_unplug(struct swap_iocb *sio)
{