Subversion Repositories test_project

#ifndef __SHMEM_FS_H

#define __SHMEM_FS_H

#include <linux/swap.h>

#include <linux/mempolicy.h>

/* inode in-kernel data */

#define SHMEM_NR_DIRECT 16

struct shmem_inode_info {

        spinlock_t              lock;

        unsigned long           flags;

        unsigned long           alloced;        /* data pages alloced to file */

        unsigned long           swapped;        /* subtotal assigned to swap */

        unsigned long           next_index;     /* highest alloced index + 1 */

        struct shared_policy    policy;         /* NUMA memory alloc policy */

        struct page             *i_indirect;    /* top indirect blocks page */

        swp_entry_t             i_direct[SHMEM_NR_DIRECT]; /* first blocks */

        struct list_head        swaplist;       /* chain of maybes on swap */

        struct inode            vfs_inode;

#ifdef CONFIG_TMPFS_POSIX_ACL

        struct posix_acl        *i_acl;

        struct posix_acl        *i_default_acl;

#endif

};

struct shmem_sb_info {

        unsigned long max_blocks;   /* How many blocks are allowed */

        unsigned long free_blocks;  /* How many are left for allocation */

        unsigned long max_inodes;   /* How many inodes are allowed */

        unsigned long free_inodes;  /* How many are left for allocation */

        int policy;                 /* Default NUMA memory alloc policy */

        nodemask_t policy_nodes;    /* nodemask for preferred and bind */

        spinlock_t    stat_lock;

};

static inline struct shmem_inode_info *SHMEM_I(struct inode *inode)

{

        return container_of(inode, struct shmem_inode_info, vfs_inode);

}

#ifdef CONFIG_TMPFS_POSIX_ACL

int shmem_permission(struct inode *, int, struct nameidata *);

int shmem_acl_init(struct inode *, struct inode *);

void shmem_acl_destroy_inode(struct inode *);

extern struct xattr_handler shmem_xattr_acl_access_handler;

extern struct xattr_handler shmem_xattr_acl_default_handler;

extern struct generic_acl_operations shmem_acl_ops;

#else

static inline int shmem_acl_init(struct inode *inode, struct inode *dir)

{

        return 0;

}

static inline void shmem_acl_destroy_inode(struct inode *inode)

{

}

#endif  /* CONFIG_TMPFS_POSIX_ACL */

#endif