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mm: migrate: drop unused argument of migrate_page_move_mapping()

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All callers of migrate_page_move_mapping() now pass NULL for 'head'
argument.  Drop it.

Link: http://lkml.kernel.org/r/20181211172143.7358-7-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jan Kara 2018-12-28 00:39:20 -08:00 • committed by Linus Torvalds
parent 88dbcbb3a4
commit ab41ee6879
6 changed files with 8 additions and 10 deletions
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2
fs/aio.c
View file

@ -409,7 +409,7 @@ static int aio_migratepage(struct address_space *mapping, struct page *new,
BUG_ON(PageWriteback(old)); BUG_ON(PageWriteback(old));
get_page(new); get_page(new);
rc = migrate_page_move_mapping(mapping, new, old, NULL, mode, 1); rc = migrate_page_move_mapping(mapping, new, old, mode, 1);
if (rc != MIGRATEPAGE_SUCCESS) { if (rc != MIGRATEPAGE_SUCCESS) {
put_page(new); put_page(new);
goto out_unlock; goto out_unlock;

2
fs/f2fs/data.c
View file

@ -2738,7 +2738,7 @@ int f2fs_migrate_page(struct address_space *mapping,
*/ */
extra_count = (atomic_written ? 1 : 0) - page_has_private(page); extra_count = (atomic_written ? 1 : 0) - page_has_private(page);
rc = migrate_page_move_mapping(mapping, newpage, rc = migrate_page_move_mapping(mapping, newpage,
page, NULL, mode, extra_count); page, mode, extra_count);
if (rc != MIGRATEPAGE_SUCCESS) { if (rc != MIGRATEPAGE_SUCCESS) {
if (atomic_written) if (atomic_written)
mutex_unlock(&fi->inmem_lock); mutex_unlock(&fi->inmem_lock);

2
fs/iomap.c
View file

@ -563,7 +563,7 @@ iomap_migrate_page(struct address_space *mapping, struct page *newpage,
{ {
int ret; int ret;
ret = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0); ret = migrate_page_move_mapping(mapping, newpage, page, mode, 0);
if (ret != MIGRATEPAGE_SUCCESS) if (ret != MIGRATEPAGE_SUCCESS)
return ret; return ret;

2
fs/ubifs/file.c
View file

@ -1481,7 +1481,7 @@ static int ubifs_migrate_page(struct address_space *mapping,
{ {
int rc; int rc;
rc = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0); rc = migrate_page_move_mapping(mapping, newpage, page, mode, 0);
if (rc != MIGRATEPAGE_SUCCESS) if (rc != MIGRATEPAGE_SUCCESS)
return rc; return rc;

3
include/linux/migrate.h
View file

@ -77,8 +77,7 @@ extern void migrate_page_copy(struct page *newpage, struct page *page);
extern int migrate_huge_page_move_mapping(struct address_space *mapping, extern int migrate_huge_page_move_mapping(struct address_space *mapping,
struct page *newpage, struct page *page); struct page *newpage, struct page *page);
extern int migrate_page_move_mapping(struct address_space *mapping, extern int migrate_page_move_mapping(struct address_space *mapping,
struct page *newpage, struct page *page, struct page *newpage, struct page *page, enum migrate_mode mode,
struct buffer_head *head, enum migrate_mode mode,
int extra_count); int extra_count);
#else #else

7
mm/migrate.c
View file

@ -399,8 +399,7 @@ static int expected_page_refs(struct page *page)
* 3 for pages with a mapping and PagePrivate/PagePrivate2 set. * 3 for pages with a mapping and PagePrivate/PagePrivate2 set.
*/ */
int migrate_page_move_mapping(struct address_space *mapping, int migrate_page_move_mapping(struct address_space *mapping,
struct page *newpage, struct page *page, struct page *newpage, struct page *page, enum migrate_mode mode,
struct buffer_head *head, enum migrate_mode mode,
int extra_count) int extra_count)
{ {
XA_STATE(xas, &mapping->i_pages, page_index(page)); XA_STATE(xas, &mapping->i_pages, page_index(page));
@ -687,7 +686,7 @@ int migrate_page(struct address_space *mapping,
BUG_ON(PageWriteback(page)); /* Writeback must be complete */ BUG_ON(PageWriteback(page)); /* Writeback must be complete */
rc = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0); rc = migrate_page_move_mapping(mapping, newpage, page, mode, 0);
if (rc != MIGRATEPAGE_SUCCESS) if (rc != MIGRATEPAGE_SUCCESS)
return rc; return rc;
@ -790,7 +789,7 @@ recheck_buffers:
} }
} }
rc = migrate_page_move_mapping(mapping, newpage, page, NULL, mode, 0); rc = migrate_page_move_mapping(mapping, newpage, page, mode, 0);
if (rc != MIGRATEPAGE_SUCCESS) if (rc != MIGRATEPAGE_SUCCESS)
goto unlock_buffers; goto unlock_buffers;