lustre/include/linux/lustre_lite.h

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * lustre lite cluster file system
   5  *
   6  * This code is issued under the GNU General Public License.
   7  * See the file COPYING in this distribution
   8  *
   9  *
  10  *
  11
  12
  13
  14 #ifndef _LL_H
  15 #define _LL_H
  16
  17 #include <linux/fs.h>
  18 #include <linux/ext2_fs.h>
  19
  20 #include <linux/lustre_net.h>
  21 #include <linux/lustre_mds.h>
  22 #include <linux/lustre_ha.h>
  23 #include <linux/obdo.h>
  24
  25 extern kmem_cache_t *ll_file_data_slab;
  26 struct ll_file_data {
  27         __u64 fd_mdshandle;
  28 };
  29
  30 #define LL_INLINESZ      60
  31 struct ll_inode_info {
  32         int              lli_flags;
  33         __u64            lli_objid;
  34         char             lli_inline[LL_INLINESZ];
  35 };
  36
  37 #define LL_SUPER_MAGIC 0x0BD00BD0;
  38
  39 #define LL_COMMITCBD_STOPPING  0x1
  40 #define LL_COMMITCBD_STOPPED   0x2
  41 #define LL_COMMITCBD_RUNNING   0x4
  42
  43 struct ll_sb_info {
  44         struct obd_conn           ll_conn;
  45         ino_t                     ll_rootino; /* number of root inode */
  46         struct ptlrpc_client      ll_mds_client;
  47         struct ptlrpc_connection *ll_mds_conn;
  48         struct ptlrpc_client      ll_ost_client;
  49         struct ptlrpc_connection *ll_ost_conn;
  50
  51         struct list_head          ll_commitcbd_not_committed;
  52         wait_queue_head_t         ll_commitcbd_waitq;
  53         wait_queue_head_t         ll_commitcbd_ctl_waitq;
  54         int                       ll_commitcbd_flags;
  55         struct task_struct        *ll_commitcbd_thread;
  56         time_t                    ll_commitcbd_waketime;
  57         time_t                    ll_commitcbd_timeout;
  58         spinlock_t                ll_commitcbd_lock;
  59 };
  60
  61
  62 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
  63 {
  64         return (struct ll_sb_info *) (inode->i_sb->u.generic_sbp);
  65 }
  66
  67 static inline struct ll_inode_info *ll_i2info(struct inode *inode)
  68 {
  69         return (struct ll_inode_info *)&(inode->u.generic_ip);
  70 }
  71
  72 static inline int ll_has_inline(struct inode *inode)
  73 {
  74         return (ll_i2info(inode)->lli_flags & OBD_FL_INLINEDATA);
  75 }
  76
  77
  78 static inline struct obd_conn *ll_i2obdconn(struct inode *inode)
  79 {
  80         return &(ll_i2sbi(inode))->ll_conn;
  81 }
  82
  83 static inline void ll_ino2fid(struct ll_fid *fid, ino_t ino, __u32 generation,
  84                               int type)
  85 {
  86         fid->id = (__u64)ino;
  87         fid->generation = generation;
  88         fid->f_type = type;
  89 }
  90
  91 static inline void ll_inode2fid(struct ll_fid *fid, struct inode *inode)
  92 {
  93         ll_ino2fid(fid, inode->i_ino, inode->i_generation,
  94                    inode->i_mode & S_IFMT);
  95 }
  96
  97 /* dir.c */
  98 extern struct file_operations ll_dir_operations;
  99 extern struct inode_operations ll_dir_inode_operations;
 100
 101 /* file.c */
 102 extern struct file_operations ll_file_operations;
 103 extern struct inode_operations ll_file_inode_operations;
 104
 105 /* rw.c */
 106 struct page *ll_getpage(struct inode *inode, unsigned long offset,
 107                            int create, int locked);
 108 void ll_truncate(struct inode *inode);
 109
 110 /* symlink.c */
 111 extern struct inode_operations ll_fast_symlink_inode_operations;
 112 extern struct inode_operations ll_symlink_inode_operations;
 113
 114 /* sysctl.c */
 115 void ll_sysctl_init(void);
 116 void ll_sysctl_clean(void);
 117
 118 #endif