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| author |   Anshuman Khandual <khandual@linux.vnet.ibm.com> | 2017-05-03 14:55:31 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-03 15:52:11 -0700 |
| commit | 82a2481e8e2832a19869a7e826e2e7b44420493e (patch) | |
| tree | 2b91c56d310a77f493f067f582c9b89468b9e3ab /mm/memory-failure.c | |
| parent | mm/madvise: move up the behavior parameter validation (diff) | |
| download | linux-dev-82a2481e8e2832a19869a7e826e2e7b44420493e.tar.xz linux-dev-82a2481e8e2832a19869a7e826e2e7b44420493e.zip | |
mm/memory-failure.c: add page flag description in error paths
It helps to provide page flag description along with the raw value in
error paths during soft offline process. From sample experiments
Before the patch:
soft offline: 0x6100: migration failed 1, type 3ffff800008018
soft offline: 0x7400: migration failed 1, type 3ffff800008018
After the patch:
soft offline: 0x5900: migration failed 1, type 3ffff800008018 (uptodate|dirty|head)
soft offline: 0x6c00: migration failed 1, type 3ffff800008018 (uptodate|dirty|head)
Link: http://lkml.kernel.org/r/20170409023829.10788-1-khandual@linux.vnet.ibm.com
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Acked-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | mm/memory-failure.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 3d3cf6add4c1..92865bb1816d 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1541,8 +1541,8 @@ static int get_any_page(struct page *page, unsigned long pfn, int flags) if (ret == 1 && !PageLRU(page)) { /* Drop page reference which is from __get_any_page() */ put_hwpoison_page(page); - pr_info("soft_offline: %#lx: unknown non LRU page type %lx\n", - pfn, page->flags); + pr_info("soft_offline: %#lx: unknown non LRU page type %lx (%pGp)\n", + pfn, page->flags, &page->flags); return -EIO; } } @@ -1583,8 +1583,8 @@ static int soft_offline_huge_page(struct page *page, int flags) ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL, MIGRATE_SYNC, MR_MEMORY_FAILURE); if (ret) { - pr_info("soft offline: %#lx: migration failed %d, type %lx\n", - pfn, ret, page->flags); + pr_info("soft offline: %#lx: migration failed %d, type %lx (%pGp)\n", + pfn, ret, page->flags, &page->flags); /* * We know that soft_offline_huge_page() tries to migrate * only one hugepage pointed to by hpage, so we need not @@ -1675,14 +1675,14 @@ static int __soft_offline_page(struct page *page, int flags) if (!list_empty(&pagelist)) putback_movable_pages(&pagelist); - pr_info("soft offline: %#lx: migration failed %d, type %lx\n", - pfn, ret, page->flags); + pr_info("soft offline: %#lx: migration failed %d, type %lx (%pGp)\n", + pfn, ret, page->flags, &page->flags); if (ret > 0) ret = -EIO; } } else { - pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx\n", - pfn, ret, page_count(page), page->flags); + pr_info("soft offline: %#lx: isolation failed: %d, page count %d, type %lx (%pGp)\n", + pfn, ret, page_count(page), page->flags, &page->flags); } return ret; } |