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Regard whitespace Rev 6292 → Rev 6293

/drivers/include/linux/dma-buf.h
154,6 → 154,36
};
 
/**
* struct dma_buf_export_info - holds information needed to export a dma_buf
* @exp_name: name of the exporter - useful for debugging.
* @owner: pointer to exporter module - used for refcounting kernel module
* @ops: Attach allocator-defined dma buf ops to the new buffer
* @size: Size of the buffer
* @flags: mode flags for the file
* @resv: reservation-object, NULL to allocate default one
* @priv: Attach private data of allocator to this buffer
*
* This structure holds the information required to export the buffer. Used
* with dma_buf_export() only.
*/
struct dma_buf_export_info {
const char *exp_name;
struct module *owner;
const struct dma_buf_ops *ops;
size_t size;
int flags;
struct reservation_object *resv;
void *priv;
};
 
/**
* helper macro for exporters; zeros and fills in most common values
*/
#define DEFINE_DMA_BUF_EXPORT_INFO(a) \
struct dma_buf_export_info a = { .exp_name = KBUILD_MODNAME, \
.owner = THIS_MODULE }
 
/**
* get_dma_buf - convenience wrapper for get_file.
* @dmabuf: [in] pointer to dma_buf
*
/drivers/include/linux/file.h
4,5 → 4,12
 
#ifndef __LINUX_FILE_H
#define __LINUX_FILE_H
 
#include <linux/compiler.h>
#include <linux/types.h>
#include <linux/posix_types.h>
 
struct file;
extern void fput(struct file *);
extern struct file *fget(unsigned int fd);
#endif /* __LINUX_FILE_H */
/drivers/include/linux/fs.h
1,3 → 1,97
#ifndef _LINUX_FS_H
#define _LINUX_FS_H
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/mutex.h>
#include <linux/rwsem.h>
#define MAY_EXEC 0x00000001
#define MAY_WRITE 0x00000002
#define MAY_READ 0x00000004
#define MAY_APPEND 0x00000008
#define MAY_ACCESS 0x00000010
#define MAY_OPEN 0x00000020
#define MAY_CHDIR 0x00000040
/* called from RCU mode, don't block */
#define MAY_NOT_BLOCK 0x00000080
/*
* Attribute flags. These should be or-ed together to figure out what
* has been changed!
*/
#define ATTR_MODE (1 << 0)
#define ATTR_UID (1 << 1)
#define ATTR_GID (1 << 2)
#define ATTR_SIZE (1 << 3)
#define ATTR_ATIME (1 << 4)
#define ATTR_MTIME (1 << 5)
#define ATTR_CTIME (1 << 6)
#define ATTR_ATIME_SET (1 << 7)
#define ATTR_MTIME_SET (1 << 8)
#define ATTR_FORCE (1 << 9) /* Not a change, but a change it */
#define ATTR_ATTR_FLAG (1 << 10)
#define ATTR_KILL_SUID (1 << 11)
#define ATTR_KILL_SGID (1 << 12)
#define ATTR_FILE (1 << 13)
#define ATTR_KILL_PRIV (1 << 14)
#define ATTR_OPEN (1 << 15) /* Truncating from open(O_TRUNC) */
#define ATTR_TIMES_SET (1 << 16)
/*
* inode->i_mutex nesting subclasses for the lock validator:
*
* 0: the object of the current VFS operation
* 1: parent
* 2: child/target
* 3: xattr
* 4: second non-directory
* 5: second parent (when locking independent directories in rename)
*
* I_MUTEX_NONDIR2 is for certain operations (such as rename) which lock two
* non-directories at once.
*
* The locking order between these classes is
* parent[2] -> child -> grandchild -> normal -> xattr -> second non-directory
*/
enum inode_i_mutex_lock_class
{
I_MUTEX_NORMAL,
I_MUTEX_PARENT,
I_MUTEX_CHILD,
I_MUTEX_XATTR,
I_MUTEX_NONDIR2,
I_MUTEX_PARENT2,
};
struct file {
 
/*
* Protects f_ep_links, f_flags.
* Must not be taken from IRQ context.
*/
spinlock_t f_lock;
atomic_long_t f_count;
unsigned int f_flags;
fmode_t f_mode;
 
/* needed for tty driver, and maybe others */
void *private_data;
 
struct page **pages; /* physical memory backend */
unsigned int count;
unsigned int allocated;
void *vma;
 
} __attribute__((aligned(4))); /* lest something weird decides that 2 is OK */
#define get_file_rcu(x) atomic_long_inc_not_zero(&(x)->f_count)
#define fput_atomic(x) atomic_long_add_unless(&(x)->f_count, -1, 1)
#define file_count(x) atomic_long_read(&(x)->f_count)
#define FL_POSIX 1
#define FL_FLOCK 2
#define FL_DELEG 4 /* NFSv4 delegation */
#define FL_ACCESS 8 /* not trying to lock, just looking */
#define FL_EXISTS 16 /* when unlocking, test for existence */
#define FL_LEASE 32 /* lease held on this file */
#define FL_CLOSE 64 /* unlock on close */
#define FL_SLEEP 128 /* A blocking lock */
#define FL_DOWNGRADE_PENDING 256 /* Lease is being downgraded */
#define FL_UNLOCK_PENDING 512 /* Lease is being broken */
#define FL_OFDLCK 1024 /* lock is "owned" by struct file */
#define FL_LAYOUT 2048 /* outstanding pNFS layout */
#endif /* _LINUX_FS_H */
/drivers/include/linux/kernel.h
684,14 → 684,6
u64 raw;
}evhandle_t;
 
struct file
{
struct page **pages; /* physical memory backend */
unsigned int count;
unsigned int allocated;
void *vma;
};
 
struct vm_area_struct {};
struct address_space {};
 
836,11 → 828,6
case 4:
*(u32 __force *)to = *(u32 *)from;
return 0;
#ifdef CONFIG_64BIT
case 8:
*(u64 __force *)to = *(u64 *)from;
return 0;
#endif
default:
break;
}
850,6 → 837,41
return 0;
}
 
static __always_inline unsigned long
__copy_from_user(void *to, const void __user *from, unsigned long n)
{
if (__builtin_constant_p(n)) {
unsigned long ret;
 
switch (n) {
case 1:
*(u8 __force *)to = *(u8 *)from;
return 0;
case 2:
*(u16 __force *)to = *(u16 *)from;
return 0;
case 4:
*(u32 __force *)to = *(u32 *)from;
return 0;
default:
break;
}
}
__builtin_memcpy((void __force *)to, from, n);
}
 
static inline long copy_from_user(void *to,
const void __user * from, unsigned long n)
{
return __copy_from_user(to, from, n);
}
 
static inline long copy_to_user(void __user *to,
const void *from, unsigned long n)
{
return __copy_to_user(to, from, n);
}
 
void *kmap(struct page *page);
void *kmap_atomic(struct page *page);
void kunmap(struct page *page);
/drivers/include/linux/workqueue.h
218,6 → 218,9
 
struct workqueue_struct *alloc_workqueue_key(const char *fmt,
unsigned int flags, int max_active);
struct workqueue_struct *alloc_workqueue(const char *fmt,
unsigned int flags,
int max_active);
 
/**
* alloc_ordered_workqueue - allocate an ordered workqueue