diff options
-rw-r--r-- | arch/ia64/kernel/sys_ia64.c | 7 | ||||
-rw-r--r-- | arch/ia64/mm/hugetlbpage.c | 8 |
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c index 9ef62a3fbfad..2fcaa2051aa3 100644 --- a/arch/ia64/kernel/sys_ia64.c +++ b/arch/ia64/kernel/sys_ia64.c | |||
@@ -33,6 +33,13 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len | |||
33 | if (len > RGN_MAP_LIMIT) | 33 | if (len > RGN_MAP_LIMIT) |
34 | return -ENOMEM; | 34 | return -ENOMEM; |
35 | 35 | ||
36 | /* handle fixed mapping: prevent overlap with huge pages */ | ||
37 | if (flags & MAP_FIXED) { | ||
38 | if (is_hugepage_only_range(mm, addr, len)) | ||
39 | return -EINVAL; | ||
40 | return addr; | ||
41 | } | ||
42 | |||
36 | #ifdef CONFIG_HUGETLB_PAGE | 43 | #ifdef CONFIG_HUGETLB_PAGE |
37 | if (REGION_NUMBER(addr) == RGN_HPAGE) | 44 | if (REGION_NUMBER(addr) == RGN_HPAGE) |
38 | addr = 0; | 45 | addr = 0; |
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c index 0c7e94edc20e..c7c90f4f4298 100644 --- a/arch/ia64/mm/hugetlbpage.c +++ b/arch/ia64/mm/hugetlbpage.c | |||
@@ -148,6 +148,14 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr, u | |||
148 | return -ENOMEM; | 148 | return -ENOMEM; |
149 | if (len & ~HPAGE_MASK) | 149 | if (len & ~HPAGE_MASK) |
150 | return -EINVAL; | 150 | return -EINVAL; |
151 | |||
152 | /* Handle MAP_FIXED */ | ||
153 | if (flags & MAP_FIXED) { | ||
154 | if (prepare_hugepage_range(addr, len, pgoff)) | ||
155 | return -EINVAL; | ||
156 | return addr; | ||
157 | } | ||
158 | |||
151 | /* This code assumes that RGN_HPAGE != 0. */ | 159 | /* This code assumes that RGN_HPAGE != 0. */ |
152 | if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1))) | 160 | if ((REGION_NUMBER(addr) != RGN_HPAGE) || (addr & (HPAGE_SIZE - 1))) |
153 | addr = HPAGE_REGION_BASE; | 161 | addr = HPAGE_REGION_BASE; |