diff options
| author |   Christoph Hellwig <hch@lst.de> | 2022-01-21 22:15:10 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-22 08:33:38 +0200 |
| commit | 1da0d94a3ec8c5f3793b7be8538b55e60ebeefe3 (patch) | |
| tree | a2bbcb8160a67bc1ffb709fcb9d37be7849f1912 /include/linux/frontswap.h | |
| parent | mm: mark swap_lock and swap_active_head static (diff) | |
| download | wireguard-linux-1da0d94a3ec8c5f3793b7be8538b55e60ebeefe3.tar.xz wireguard-linux-1da0d94a3ec8c5f3793b7be8538b55e60ebeefe3.zip | |
frontswap: remove support for multiple ops
There is only a single instance of frontswap ops in the kernel, so
simplify the frontswap code by removing support for multiple operations.
Link: https://lkml.kernel.org/r/20211224062246.1258487-13-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/frontswap.h')
| -rw-r--r-- | include/linux/frontswap.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h index c5b2848d2240..a631bac12220 100644 --- a/include/linux/frontswap.h +++ b/include/linux/frontswap.h @@ -13,10 +13,9 @@ struct frontswap_ops { int (*load)(unsigned, pgoff_t, struct page *); /* load a page */ void (*invalidate_page)(unsigned, pgoff_t); /* page no longer needed */ void (*invalidate_area)(unsigned); /* swap type just swapoff'ed */ - struct frontswap_ops *next; /* private pointer to next ops */ }; -extern void frontswap_register_ops(struct frontswap_ops *ops); +int frontswap_register_ops(const struct frontswap_ops *ops); extern void frontswap_init(unsigned type, unsigned long *map); extern int __frontswap_store(struct page *page); |