forked from luck/tmp_suning_uos_patched
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
#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;
|
|
};
|
|
|
|
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 */
|
|
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);
|
|
}
|
|
|
|
#endif
|