cregit-Linux how code gets into the kernel

Release 4.12 include/uapi/asm-generic/mman-common.h

#ifndef __ASM_GENERIC_MMAN_COMMON_H

#define __ASM_GENERIC_MMAN_COMMON_H

/*
 Author: Michael S. Tsirkin <mst@mellanox.co.il>, Mellanox Technologies Ltd.
 Based on: asm-xxx/mman.h
*/


#define PROT_READ	0x1		
/* page can be read */

#define PROT_WRITE	0x2		
/* page can be written */

#define PROT_EXEC	0x4		
/* page can be executed */

#define PROT_SEM	0x8		
/* page may be used for atomic ops */

#define PROT_NONE	0x0		
/* page can not be accessed */

#define PROT_GROWSDOWN	0x01000000	
/* mprotect flag: extend change to start of growsdown vma */

#define PROT_GROWSUP	0x02000000	
/* mprotect flag: extend change to end of growsup vma */


#define MAP_SHARED	0x01		
/* Share changes */

#define MAP_PRIVATE	0x02		
/* Changes are private */

#define MAP_TYPE	0x0f		
/* Mask for type of mapping */

#define MAP_FIXED	0x10		
/* Interpret addr exactly */

#define MAP_ANONYMOUS	0x20		
/* don't use a file */
#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED

# define MAP_UNINITIALIZED 0x4000000	
/* For anonymous mmap, memory could be uninitialized */
#else

# define MAP_UNINITIALIZED 0x0		
/* Don't support this flag */
#endif

/*
 * Flags for mlock
 */

#define MLOCK_ONFAULT	0x01		
/* Lock pages in range after they are faulted in, do not prefault */


#define MS_ASYNC	1		
/* sync memory asynchronously */

#define MS_INVALIDATE	2		
/* invalidate the caches */

#define MS_SYNC		4		
/* synchronous memory sync */


#define MADV_NORMAL	0		
/* no further special treatment */

#define MADV_RANDOM	1		
/* expect random page references */

#define MADV_SEQUENTIAL	2		
/* expect sequential page references */

#define MADV_WILLNEED	3		
/* will need these pages */

#define MADV_DONTNEED	4		
/* don't need these pages */

/* common parameters: try to keep these consistent across architectures */

#define MADV_FREE	8		
/* free pages only if memory pressure */

#define MADV_REMOVE	9		
/* remove these pages & resources */

#define MADV_DONTFORK	10		
/* don't inherit across fork */

#define MADV_DOFORK	11		
/* do inherit across fork */

#define MADV_HWPOISON	100		
/* poison a page for testing */

#define MADV_SOFT_OFFLINE 101		
/* soft offline page for testing */


#define MADV_MERGEABLE   12		
/* KSM may merge identical pages */

#define MADV_UNMERGEABLE 13		
/* KSM may not merge identical pages */


#define MADV_HUGEPAGE	14		
/* Worth backing with hugepages */

#define MADV_NOHUGEPAGE	15		
/* Not worth backing with hugepages */


#define MADV_DONTDUMP   16		
/* Explicity exclude from the core dump,
                                           overrides the coredump filter bits */

#define MADV_DODUMP	17		
/* Clear the MADV_DONTDUMP flag */

/* compatibility flags */

#define MAP_FILE	0

/*
 * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
 * This gives us 6 bits, which is enough until someone invents 128 bit address
 * spaces.
 *
 * Assume these are all power of twos.
 * When 0 use the default page size.
 */

#define MAP_HUGE_SHIFT	26

#define MAP_HUGE_MASK	0x3f


#define PKEY_DISABLE_ACCESS	0x1

#define PKEY_DISABLE_WRITE	0x2

#define PKEY_ACCESS_MASK	(PKEY_DISABLE_ACCESS |\
                                 PKEY_DISABLE_WRITE)

#endif /* __ASM_GENERIC_MMAN_COMMON_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Michael S. Tsirkin12757.73%16.67%
Andi Kleen198.64%320.00%
Jie Zhang177.73%16.67%
Dave Hansen125.45%16.67%
Andrea Arcangeli104.55%213.33%
Hugh Dickins104.55%16.67%
Jason Baron94.09%16.67%
Eric B Munson62.73%16.67%
MinChan Kim41.82%16.67%
Arnd Bergmann31.36%16.67%
Chen Gang S20.91%16.67%
Zhang Yanfei10.45%16.67%
Total220100.00%15100.00%
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