diff options
| author | Michal Hocko <mhocko@suse.com> | 2018-04-11 02:30:03 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-11 20:28:32 +0300 |
| commit | 666feb21a0083e5b29ddd96588553ffa0cc357b6 (patch) | |
| tree | 2b470bb99e3fdf84b1df32ffe726adb0119084e5 /mm/migrate.c | |
| parent | a49bd4d7163707de377aee062f17befef6da891b (diff) | |
| download | linux-666feb21a0083e5b29ddd96588553ffa0cc357b6.tar.xz | |
mm, migrate: remove reason argument from new_page_t
No allocation callback is using this argument anymore. new_page_node
used to use this parameter to convey node_id resp. migration error up
to move_pages code (do_move_page_to_node_array). The error status never
made it into the final status field and we have a better way to
communicate node id to the status field now. All other allocation
callbacks simply ignored the argument so we can drop it finally.
[mhocko@suse.com: fix migration callback]
Link: http://lkml.kernel.org/r/20180105085259.GH2801@dhcp22.suse.cz
[akpm@linux-foundation.org: fix alloc_misplaced_dst_page()]
[mhocko@kernel.org: fix build]
Link: http://lkml.kernel.org/r/20180103091134.GB11319@dhcp22.suse.cz
Link: http://lkml.kernel.org/r/20180103082555.14592-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: Andrea Reale <ar@linux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 6068d4049a31..c606752f6d2a 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1137,10 +1137,9 @@ static ICE_noinline int unmap_and_move(new_page_t get_new_page, enum migrate_reason reason) { int rc = MIGRATEPAGE_SUCCESS; - int *result = NULL; struct page *newpage; - newpage = get_new_page(page, private, &result); + newpage = get_new_page(page, private); if (!newpage) return -ENOMEM; @@ -1231,12 +1230,6 @@ put_new: put_page(newpage); } - if (result) { - if (rc) - *result = rc; - else - *result = page_to_nid(newpage); - } return rc; } @@ -1264,7 +1257,6 @@ static int unmap_and_move_huge_page(new_page_t get_new_page, enum migrate_mode mode, int reason) { int rc = -EAGAIN; - int *result = NULL; int page_was_mapped = 0; struct page *new_hpage; struct anon_vma *anon_vma = NULL; @@ -1281,7 +1273,7 @@ static int unmap_and_move_huge_page(new_page_t get_new_page, return -ENOSYS; } - new_hpage = get_new_page(hpage, private, &result); + new_hpage = get_new_page(hpage, private); if (!new_hpage) return -ENOMEM; @@ -1345,12 +1337,6 @@ out: else putback_active_hugepage(new_hpage); - if (result) { - if (rc) - *result = rc; - else - *result = page_to_nid(new_hpage); - } return rc; } @@ -1828,8 +1814,7 @@ static bool migrate_balanced_pgdat(struct pglist_data *pgdat, } static struct page *alloc_misplaced_dst_page(struct page *page, - unsigned long data, - int **result) + unsigned long data) { int nid = (int) data; struct page *newpage; |