1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * lustre lite cluster file system
6 * This code is issued under the GNU General Public License.
7 * See the file COPYING in this distribution
9 * Copyright (C) 2002 Cluster File Systems, Inc. <info@clusterfs.com>
20 #include <linux/ext2_fs.h>
22 #include <linux/obd_class.h>
23 #include <linux/lustre_net.h>
24 #include <linux/lustre_mds.h>
25 #include <linux/lustre_ha.h>
27 extern kmem_cache_t *ll_file_data_slab;
29 struct lustre_handle fd_mdshandle;
30 struct lustre_handle fd_osthandle;
31 struct ptlrpc_request *fd_req;
35 struct ll_dentry_data {
36 struct semaphore lld_it_sem;
39 #define ll_d2d(dentry) ((struct ll_dentry_data*) dentry->d_fsdata)
41 struct ll_read_inode2_cookie {
42 struct mds_body *lic_body;
43 struct lov_mds_md *lic_lmm;
46 #define LL_INLINESZ 60
47 struct ll_inode_info {
48 struct lov_stripe_md *lli_smd;
49 char *lli_symlink_name;
50 struct lustre_handle lli_intent_lock_handle;
51 struct semaphore lli_open_sem;
52 __u32 lli_mount_epoch;
55 #define LL_SUPER_MAGIC 0x0BD00BD0
57 #define LL_COMMITCBD_STOPPING 0x1
58 #define LL_COMMITCBD_STOPPED 0x2
59 #define LL_COMMITCBD_RUNNING 0x4
61 #define LL_SBI_NOLCK 0x1
64 obd_uuid_t ll_sb_uuid;
65 struct lustre_handle ll_mdc_conn;
66 struct lustre_handle ll_osc_conn;
67 obd_id ll_rootino; /* number of root inode */
70 wait_queue_head_t ll_commitcbd_waitq;
71 wait_queue_head_t ll_commitcbd_ctl_waitq;
72 int ll_commitcbd_flags;
73 struct task_struct *ll_commitcbd_thread;
74 time_t ll_commitcbd_waketime;
75 time_t ll_commitcbd_timeout;
76 spinlock_t ll_commitcbd_lock;
77 struct list_head ll_conn_chain; /* per-conn chain of SBs */
81 #define CHECK_MOUNT_EPOCH(i) \
83 if (ll_i2info(i)->lli_mount_epoch != ll_i2sbi(i)->ll_mount_epoch) \
87 static inline struct ll_sb_info *ll_s2sbi(struct super_block *sb)
89 return (struct ll_sb_info *)(sb->u.generic_sbp);
92 static inline struct lustre_handle *ll_s2obdconn(struct super_block *sb)
94 return &(ll_s2sbi(sb))->ll_osc_conn;
97 static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
99 struct obd_device *obd = class_conn2obd(&sbi->ll_mdc_conn);
105 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
107 return ll_s2sbi(inode->i_sb);
110 static inline struct ll_inode_info *ll_i2info(struct inode *inode)
112 return (struct ll_inode_info *)&(inode->u.generic_ip);
115 static inline struct lustre_handle *ll_i2obdconn(struct inode *inode)
117 return ll_s2obdconn(inode->i_sb);
120 static inline void ll_ino2fid(struct ll_fid *fid, obd_id ino, __u32 generation,
124 fid->generation = generation;
128 static inline void ll_inode2fid(struct ll_fid *fid, struct inode *inode)
130 ll_ino2fid(fid, inode->i_ino, inode->i_generation,
131 inode->i_mode & S_IFMT);
134 static inline int ll_mds_easize(struct super_block *sb)
136 return sbi2mdc(ll_s2sbi(sb))->cl_max_mds_easize;
139 static inline int ll_ost_easize(struct super_block *sb)
141 return sbi2mdc(ll_s2sbi(sb))->cl_max_ost_easize;
145 int ll_lock(struct inode *dir, struct dentry *dentry,
146 struct lookup_intent *it, struct lustre_handle *lockh);
147 int ll_unlock(__u32 mode, struct lustre_handle *lockh);
150 void ll_intent_release(struct dentry *de);
151 int ll_set_dd(struct dentry *de);
154 extern struct file_operations ll_dir_operations;
155 extern struct inode_operations ll_dir_inode_operations;
158 extern struct file_operations ll_file_operations;
159 extern struct inode_operations ll_file_inode_operations;
161 int ll_lock_callback(struct ldlm_lock *, struct ldlm_lock_desc *, void *data,
162 __u32 data_len, int flag);
163 int ll_size_lock(struct inode *, struct lov_stripe_md *, __u64 start, int mode,
164 struct lustre_handle **);
165 int ll_size_unlock(struct inode *, struct lov_stripe_md *, int mode,
166 struct lustre_handle *);
167 int ll_file_size(struct inode *inode, struct lov_stripe_md *md);
170 struct page *ll_getpage(struct inode *inode, unsigned long offset,
171 int create, int locked);
172 void ll_truncate(struct inode *inode);
175 void ll_update_inode(struct inode *, struct mds_body *);
178 extern struct inode_operations ll_fast_symlink_inode_operations;
179 extern struct inode_operations ll_symlink_inode_operations;
182 void ll_sysctl_init(void);
183 void ll_sysctl_clean(void);
185 #endif /* __KERNEL__ */
187 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
188 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
189 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
191 #define LL_FILE_IGNORE_LOCK 0x00000001