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authorChristoph Hellwig <hch@lst.de>2022-01-22 09:14:57 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-22 09:33:38 +0300
commit10a9c496789fe2098bfc018650fc77b23ba08a54 (patch)
tree3ea93b2e5ebaa77b29ff7abb8867a6606bc214a4 /include/linux
parent360be5daa33fe74fc472195242ae2a2337c4320b (diff)
downloadlinux-10a9c496789fe2098bfc018650fc77b23ba08a54.tar.xz
mm: simplify try_to_unuse
Remove the unused frontswap and pages_to_unuse arguments, and mark the function static now that the caller in frontswap is gone. [akpm@linux-foundation.org: fix shmem_unuse() stub, per Matthew] Link: https://lkml.kernel.org/r/20211224062246.1258487-9-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> Cc: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/frontswap.h7
-rw-r--r--include/linux/shmem_fs.h3
-rw-r--r--include/linux/swapfile.h1
3 files changed, 1 insertions, 10 deletions
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
index 73d7beb44f2b..a9817d4fa74c 100644
--- a/include/linux/frontswap.h
+++ b/include/linux/frontswap.h
@@ -7,13 +7,6 @@
#include <linux/bitops.h>
#include <linux/jump_label.h>
-/*
- * Return code to denote that requested number of
- * frontswap pages are unused(moved to page cache).
- * Used in shmem_unuse and try_to_unuse.
- */
-#define FRONTSWAP_PAGES_UNUSED 2
-
struct frontswap_ops {
void (*init)(unsigned); /* this swap type was just swapon'ed */
int (*store)(unsigned, pgoff_t, struct page *); /* store a page */
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index 166158b6e917..e65b80ed09e7 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -83,8 +83,7 @@ extern void shmem_unlock_mapping(struct address_space *mapping);
extern struct page *shmem_read_mapping_page_gfp(struct address_space *mapping,
pgoff_t index, gfp_t gfp_mask);
extern void shmem_truncate_range(struct inode *inode, loff_t start, loff_t end);
-extern int shmem_unuse(unsigned int type, bool frontswap,
- unsigned long *fs_pages_to_unuse);
+int shmem_unuse(unsigned int type);
extern bool shmem_is_huge(struct vm_area_struct *vma,
struct inode *inode, pgoff_t index);
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h
index e06febf62978..809cd01ef2c5 100644
--- a/include/linux/swapfile.h
+++ b/include/linux/swapfile.h
@@ -9,7 +9,6 @@
extern spinlock_t swap_lock;
extern struct plist_head swap_active_head;
extern struct swap_info_struct *swap_info[];
-extern int try_to_unuse(unsigned int, bool, unsigned long);
extern unsigned long generic_max_swapfile_size(void);
extern unsigned long max_swapfile_size(void);