The patch titled
Subject: frontswap: remove frontswap_curr_pages
has been added to the -mm tree. Its filename is
frontswap-remove-frontswap_curr_pages.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/frontswap-remove-frontswap_curr_pages.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/frontswap-remove-frontswap_curr_pages.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: frontswap: remove frontswap_curr_pages
frontswap_curr_pages is never called, so remove it.
Link: https://lkml.kernel.org/r/20211224062246.1258487-6-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
Cc: Dan Streetman <ddstreet@xxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Konrad Rzeszutek Wilk <Konrad.wilk@xxxxxxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Seth Jennings <sjenning@xxxxxxxxxx>
Cc: Vitaly Wool <vitaly.wool@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/frontswap.h | 1 -
mm/frontswap.c | 28 ----------------------------
2 files changed, 29 deletions(-)
--- a/include/linux/frontswap.h~frontswap-remove-frontswap_curr_pages
+++ a/include/linux/frontswap.h
@@ -24,7 +24,6 @@ struct frontswap_ops {
};
extern void frontswap_register_ops(struct frontswap_ops *ops);
-extern unsigned long frontswap_curr_pages(void);
extern bool __frontswap_test(struct swap_info_struct *, pgoff_t);
extern void __frontswap_init(unsigned type, unsigned long *map);
--- a/mm/frontswap.c~frontswap-remove-frontswap_curr_pages
+++ a/mm/frontswap.c
@@ -330,34 +330,6 @@ void __frontswap_invalidate_area(unsigne
}
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
_
Patches currently in -mm which might be from hch@xxxxxx are
mm-remove-cleancache.patch
frontswap-remove-frontswap_writethrough.patch
frontswap-remove-frontswap_tmem_exclusive_gets.patch
frontswap-remove-frontswap_shrink.patch
frontswap-remove-frontswap_curr_pages.patch
frontswap-simplify-frontswap_init.patch
frontswap-remove-the-frontswap-exports.patch
mm-simplify-try_to_unuse.patch
frontswap-remove-frontswap_test.patch
frontswap-simplify-frontswap_register_ops.patch
mm-mark-swap_lock-and-swap_active_head-static.patch
frontswap-remove-support-for-multiple-ops.patch
mm-hide-the-frontswap-kconfig-symbol.patch
