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| author | Christoph Hellwig <hch@lst.de> | 2022-01-22 09:14:47 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-22 09:33:38 +0300 |
| commit | 3e8e1af63d7a831f576477c25d9b89049bd2d53d (patch) | |
| tree | 6a0e25dc173c546a0fddc0f2300418fb2ded1145 /mm/frontswap.c | |
| parent | 0b364446d734da76e421dbfb09e5268270cefaf0 (diff) | |
| download | linux-3e8e1af63d7a831f576477c25d9b89049bd2d53d.tar.xz | |
frontswap: remove frontswap_curr_pages
frontswap_curr_pages is never called, so remove it.
Link: https://lkml.kernel.org/r/20211224062246.1258487-6-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 'mm/frontswap.c')
| -rw-r--r-- | mm/frontswap.c | 28 |
1 files changed, 0 insertions, 28 deletions
diff --git a/mm/frontswap.c b/mm/frontswap.c index a77ebba6101b..af8f68d0e5cc 100644 --- a/mm/frontswap.c +++ b/mm/frontswap.c @@ -330,34 +330,6 @@ void __frontswap_invalidate_area(unsigned type) } EXPORT_SYMBOL(__frontswap_invalidate_area); -static unsigned long __frontswap_curr_pages(void) -{ - unsigned long totalpages = 0; - struct swap_info_struct *si = NULL; - - assert_spin_locked(&swap_lock); - plist_for_each_entry(si, &swap_active_head, list) - totalpages += atomic_read(&si->frontswap_pages); - return totalpages; -} - -/* - * Count and return the number of frontswap pages across all - * swap devices. This is exported so that backend drivers can - * determine current usage without reading debugfs. - */ -unsigned long frontswap_curr_pages(void) -{ - unsigned long totalpages = 0; - - spin_lock(&swap_lock); - totalpages = __frontswap_curr_pages(); - spin_unlock(&swap_lock); - - return totalpages; -} -EXPORT_SYMBOL(frontswap_curr_pages); - static int __init init_frontswap(void) { #ifdef CONFIG_DEBUG_FS |