lustre/include/linux/lustre_lite.h

   1 /* object based disk file system
   2  *
   3  * This code is issued under the GNU General Public License.
   4  * See the file COPYING in this distribution
   5  *
   6  *
   7  *
   8  *
   9
  10
  11
  12 #ifndef _LL_H
  13 #define _LL_H
  14
  15 #include <linux/ext2_fs.h>
  16
  17 #include <linux/lustre_net.h>
  18 #include <linux/lustre_mds.h>
  19 #include <linux/lustre_ha.h>
  20 #include <linux/obdo.h>
  21
  22 extern kmem_cache_t *ll_file_data_slab;
  23 struct ll_file_data {
  24         __u64 fd_mdshandle;
  25 };
  26
  27 #define LL_INLINESZ      60
  28 struct ll_inode_info {
  29         int              lli_flags;
  30         __u64            lli_objid;
  31         char             lli_inline[LL_INLINESZ];
  32 };
  33
  34 #define LL_SUPER_MAGIC 0x0BD00BD0;
  35
  36 #define LL_COMMITCBD_STOPPING  0x1
  37 #define LL_COMMITCBD_STOPPED   0x2
  38 #define LL_COMMITCBD_RUNNING   0x4
  39
  40 struct ll_sb_info {
  41         struct obd_conn           ll_conn;
  42         ino_t                     ll_rootino; /* number of root inode */
  43         struct ptlrpc_client      ll_mds_client;
  44         struct ptlrpc_connection *ll_mds_conn;
  45         struct ptlrpc_client      ll_ost_client;
  46         struct ptlrpc_connection *ll_ost_conn;
  47
  48         struct list_head          ll_commitcbd_not_committed;
  49         wait_queue_head_t         ll_commitcbd_waitq;
  50         wait_queue_head_t         ll_commitcbd_ctl_waitq;
  51         int                       ll_commitcbd_flags;
  52         struct task_struct        *ll_commitcbd_thread;
  53         time_t                    ll_commitcbd_waketime;
  54         time_t                    ll_commitcbd_timeout;
  55         spinlock_t                ll_commitcbd_lock;
  56 };
  57
  58
  59 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
  60 {
  61         return (struct ll_sb_info *) (inode->i_sb->u.generic_sbp);
  62 }
  63
  64 static inline struct ll_inode_info *ll_i2info(struct inode *inode)
  65 {
  66         return (struct ll_inode_info *)&(inode->u.generic_ip);
  67 }
  68
  69 static inline int ll_has_inline(struct inode *inode)
  70 {
  71         return (ll_i2info(inode)->lli_flags & OBD_FL_INLINEDATA);
  72 }
  73
  74
  75 static inline struct obd_conn *ll_i2obdconn(struct inode *inode)
  76 {
  77         return &(ll_i2sbi(inode))->ll_conn;
  78 }
  79
  80 /* dir.c */
  81 extern struct file_operations ll_dir_operations;
  82 extern struct inode_operations ll_dir_inode_operations;
  83
  84 /* file.c */
  85 extern struct file_operations ll_file_operations;
  86 extern struct inode_operations ll_file_inode_operations;
  87
  88 /* rw.c */
  89 struct page *ll_getpage(struct inode *inode, unsigned long offset,
  90                            int create, int locked);
  91 void ll_truncate(struct inode *inode);
  92
  93 /* symlink.c */
  94 extern struct inode_operations ll_fast_symlink_inode_operations;
  95 extern struct inode_operations ll_symlink_inode_operations;
  96
  97 /* sysctl.c */
  98 void ll_sysctl_init(void);
  99 void ll_sysctl_clean(void);
 100
 101 #endif
 102