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Differential D20502 Diff 58244 sys/compat/linuxkpi/common/include/linux/gfp.h

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sys/compat/linuxkpi/common/include/linux/gfp.h

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#define __GFP_HIGHMEM 0 #define __GFP_HIGHMEM 0
#define __GFP_ZERO M_ZERO #define __GFP_ZERO M_ZERO
#define __GFP_NORETRY 0 #define __GFP_NORETRY 0
#define __GFP_RECLAIM 0 #define __GFP_RECLAIM 0
#define __GFP_RECLAIMABLE 0 #define __GFP_RECLAIMABLE 0
#define __GFP_RETRY_MAYFAIL 0 #define __GFP_RETRY_MAYFAIL 0
#define __GFP_MOVABLE 0 #define __GFP_MOVABLE 0
#define __GFP_COMP 0 #define __GFP_COMP 0
#define __GFP_KSWAPD_RECLAIM 0 #define __GFP_KSWAPD_RECLAIM 0
#define __GFP_IO 0 #define __GFP_IO 0
#define __GFP_NO_KSWAPD 0 #define __GFP_NO_KSWAPD 0
#define __GFP_WAIT M_WAITOK #define __GFP_WAIT M_WAITOK
#define __GFP_DMA32 (1U << 24) /* LinuxKPI only */ #define __GFP_DMA32 (1U << 24) /* LinuxKPI only */
#if defined(LINUXKPI_VERSION) && LINUXKPI_VERSION == 50000
#define __GFP_NOTWIRED (1U << 25)
#endif
#define __GFP_BITS_SHIFT 25 #define __GFP_BITS_SHIFT 25
#define __GFP_BITS_MASK ((1 << __GFP_BITS_SHIFT) - 1) #define __GFP_BITS_MASK ((1 << __GFP_BITS_SHIFT) - 1)
#define __GFP_NOFAIL M_WAITOK #define __GFP_NOFAIL M_WAITOK
#define GFP_NOWAIT M_NOWAIT #define GFP_NOWAIT M_NOWAIT
#define GFP_ATOMIC (M_NOWAIT | M_USE_RESERVE) #define GFP_ATOMIC (M_NOWAIT | M_USE_RESERVE)
#define GFP_KERNEL M_WAITOK #define GFP_KERNEL M_WAITOK
#define GFP_USER M_WAITOK #define GFP_USER M_WAITOK
#define GFP_HIGHUSER M_WAITOK #define GFP_HIGHUSER M_WAITOK
#define GFP_HIGHUSER_MOVABLE M_WAITOK #define GFP_HIGHUSER_MOVABLE M_WAITOK
#define GFP_IOFS M_NOWAIT #define GFP_IOFS M_NOWAIT
#define GFP_NOIO M_NOWAIT #define GFP_NOIO M_NOWAIT
#define GFP_DMA32 __GFP_DMA32 #define GFP_DMA32 __GFP_DMA32
#define GFP_TEMPORARY M_NOWAIT #define GFP_TEMPORARY M_NOWAIT
#define GFP_NATIVE_MASK (M_NOWAIT | M_WAITOK | M_USE_RESERVE | M_ZERO) #define GFP_NATIVE_MASK (M_NOWAIT | M_WAITOK | M_USE_RESERVE | M_ZERO)
#define GFP_TRANSHUGE 0 #define GFP_TRANSHUGE 0
#define GFP_TRANSHUGE_LIGHT 0 #define GFP_TRANSHUGE_LIGHT 0
CTASSERT((__GFP_DMA32 & GFP_NATIVE_MASK) == 0); CTASSERT((__GFP_DMA32 & GFP_NATIVE_MASK) == 0);
CTASSERT((__GFP_BITS_MASK & GFP_NATIVE_MASK) == GFP_NATIVE_MASK); CTASSERT((__GFP_BITS_MASK & GFP_NATIVE_MASK) == GFP_NATIVE_MASK);
/* /*
* Resolve a page into a virtual address: * Resolve a page into a virtual address:
* *
* NOTE: This function only works for pages allocated by the kernel. * NOTE: This function only works for pages allocated by the kernel.
*/ */
extern void *linux_page_address(struct page *); extern void *linux_page_address(struct page *);
#define page_address(page) linux_page_address(page) #define page_address(page) linux_page_address(page)
/* /*
* Page management for unmapped pages: * Page management for unmapped pages:
*/ */
extern vm_page_t linux_alloc_pages(gfp_t flags, unsigned int order); extern vm_page_t linux_alloc_pages(gfp_t flags, unsigned int order);
extern void linux_free_pages(vm_page_t page, unsigned int order); extern void linux_free_pages(vm_page_t page, unsigned int order);
static inline struct page * static inline struct page *
alloc_page(gfp_t flags) alloc_page(gfp_t flags)
{ {
#ifdef __GFP_NOWIRED
flags |= __GFP_NOTWIRED;
#endif
return (linux_alloc_pages(flags, 0)); return (linux_alloc_pages(flags, 0));
} }
static inline struct page * static inline struct page *
alloc_pages(gfp_t flags, unsigned int order) alloc_pages(gfp_t flags, unsigned int order)
{ {
#ifdef __GFP_NOWIRED
flags |= __GFP_NOTWIRED;
#endif
return (linux_alloc_pages(flags, order)); return (linux_alloc_pages(flags, order));
} }
static inline struct page * static inline struct page *
alloc_pages_node(int node_id, gfp_t flags, unsigned int order) alloc_pages_node(int node_id, gfp_t flags, unsigned int order)
{ {
#ifdef __GFP_NOWIRED
flags |= __GFP_NOTWIRED;
#endif
return (linux_alloc_pages(flags, order)); return (linux_alloc_pages(flags, order));
} }
static inline void static inline void
__free_pages(struct page *page, unsigned int order) __free_pages(struct page *page, unsigned int order)
{ {
linux_free_pages(page, order); linux_free_pages(page, order);
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