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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2017-09-09 16:34:41 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2017-09-09 16:34:41 +0100 |
| commit | e558bdc21ae1f0db520eccd84015e17d8a589973 (patch) | |
| tree | b436123bd52f267b8c7f361618cded3e1e4421ea /arch/s390/mm/pgtable.c | |
| parent | 746a272e44141af24a02f6c9b0f65f4c4598ed42 (diff) | |
| parent | 9a3dc3186fc3795e076a4122da9e0258651a9631 (diff) | |
| download | op-kernel-dev-e558bdc21ae1f0db520eccd84015e17d8a589973.zip op-kernel-dev-e558bdc21ae1f0db520eccd84015e17d8a589973.tar.gz | |
Merge branches 'fixes' and 'misc' into for-linus
Diffstat (limited to 'arch/s390/mm/pgtable.c')
| -rw-r--r-- | arch/s390/mm/pgtable.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 947b66a..d4d409b 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -610,6 +610,7 @@ bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long addr) { spinlock_t *ptl; pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; pgste_t pgste; @@ -618,7 +619,10 @@ bool test_and_clear_guest_dirty(struct mm_struct *mm, unsigned long addr) bool dirty; pgd = pgd_offset(mm, addr); - pud = pud_alloc(mm, pgd, addr); + p4d = p4d_alloc(mm, pgd, addr); + if (!p4d) + return false; + pud = pud_alloc(mm, p4d, addr); if (!pud) return false; pmd = pmd_alloc(mm, pud, addr); |
