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| author | David S. Miller <davem@davemloft.net> | 2015-02-17 18:48:51 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-02-17 18:48:51 -0800 |
| commit | fece13ca005a5f559147e9424321f4b5e01272b4 (patch) | |
| tree | 54e762e70afb664d14152e6bcf89a48be3fb9c13 /include/linux/vmalloc.h | |
| parent | 855e7e7174bade3f2b63077a81eea5aab525dbf6 (diff) | |
| parent | f5af19d10d151c5a2afae3306578f485c244db25 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'include/linux/vmalloc.h')
| -rw-r--r-- | include/linux/vmalloc.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index b87696fdf06a..7d7acb35603d 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -16,6 +16,7 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ #define VM_VPAGES 0x00000010 /* buffer for pages was vmalloc'ed */ #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */ +#define VM_NO_GUARD 0x00000040 /* don't add guard page */ /* bits [20..32] reserved for arch specific ioremap internals */ /* @@ -75,7 +76,9 @@ extern void *vmalloc_32_user(unsigned long size); extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot); extern void *__vmalloc_node_range(unsigned long size, unsigned long align, unsigned long start, unsigned long end, gfp_t gfp_mask, - pgprot_t prot, int node, const void *caller); + pgprot_t prot, unsigned long vm_flags, int node, + const void *caller); + extern void vfree(const void *addr); extern void *vmap(struct page **pages, unsigned int count, @@ -96,8 +99,12 @@ void vmalloc_sync_all(void); static inline size_t get_vm_area_size(const struct vm_struct *area) { - /* return actual size without guard page */ - return area->size - PAGE_SIZE; + if (!(area->flags & VM_NO_GUARD)) + /* return actual size without guard page */ + return area->size - PAGE_SIZE; + else + return area->size; + } extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags); |