diff options
| author | Luka Pivk <luka.pivk@toradex.com> | 2019-01-08 07:02:41 +0100 |
|---|---|---|
| committer | Luka Pivk <luka.pivk@toradex.com> | 2019-01-08 07:02:41 +0100 |
| commit | 43f61e8df71c474cd56b5c971096b9cf8d36cd95 (patch) | |
| tree | 0031be65fcc2fd2fd3eceeee9558b5526a19e431 /mm/huge_memory.c | |
| parent | 5656ec50dc9950db865d53306326b1a732e3738e (diff) | |
| parent | c04c050f5bf98845bfe22164b8a1503d696a6e26 (diff) | |
Merge remote-tracking branch 'remotes/origin/linux-4.19.y'toradex_4.19.y
Signed-off-by: Luka Pivk <luka.pivk@toradex.com>
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 15310f14c25e..d2cd70cfaa90 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2127,23 +2127,25 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd, */ old_pmd = pmdp_invalidate(vma, haddr, pmd); -#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION pmd_migration = is_pmd_migration_entry(old_pmd); - if (pmd_migration) { + if (unlikely(pmd_migration)) { swp_entry_t entry; entry = pmd_to_swp_entry(old_pmd); page = pfn_to_page(swp_offset(entry)); - } else -#endif + write = is_write_migration_entry(entry); + young = false; + soft_dirty = pmd_swp_soft_dirty(old_pmd); + } else { page = pmd_page(old_pmd); + if (pmd_dirty(old_pmd)) + SetPageDirty(page); + write = pmd_write(old_pmd); + young = pmd_young(old_pmd); + soft_dirty = pmd_soft_dirty(old_pmd); + } VM_BUG_ON_PAGE(!page_count(page), page); page_ref_add(page, HPAGE_PMD_NR - 1); - if (pmd_dirty(old_pmd)) - SetPageDirty(page); - write = pmd_write(old_pmd); - young = pmd_young(old_pmd); - soft_dirty = pmd_soft_dirty(old_pmd); /* * Withdraw the table only after we mark the pmd entry invalid. |