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 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
53 struct inode lli_vfs_inode;
57 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
58 static inline struct ll_inode_info *LL_I(struct inode *inode)
60 return container_of(inode, struct ll_inode_info, lli_vfs_inode);
65 #define LL_SUPER_MAGIC 0x0BD00BD0
67 #define LL_COMMITCBD_STOPPING 0x1
68 #define LL_COMMITCBD_STOPPED 0x2
69 #define LL_COMMITCBD_RUNNING 0x4
71 #define LL_SBI_NOLCK 0x1
74 obd_uuid_t ll_sb_uuid;
75 struct lustre_handle ll_mdc_conn;
76 struct lustre_handle ll_osc_conn;
77 obd_id ll_rootino; /* number of root inode */
80 wait_queue_head_t ll_commitcbd_waitq;
81 wait_queue_head_t ll_commitcbd_ctl_waitq;
82 int ll_commitcbd_flags;
83 struct task_struct *ll_commitcbd_thread;
84 time_t ll_commitcbd_waketime;
85 time_t ll_commitcbd_timeout;
86 spinlock_t ll_commitcbd_lock;
87 struct list_head ll_conn_chain; /* per-conn chain of SBs */
90 static inline struct ll_sb_info *ll_s2sbi(struct super_block *sb)
92 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
93 return (struct ll_sb_info *)(sb->s_fs_info);
95 return (struct ll_sb_info *)(sb->u.generic_sbp);
99 static inline struct lustre_handle *ll_s2obdconn(struct super_block *sb)
101 return &(ll_s2sbi(sb))->ll_osc_conn;
104 static inline struct client_obd *sbi2mdc(struct ll_sb_info *sbi)
106 struct obd_device *obd = class_conn2obd(&sbi->ll_mdc_conn);
112 static inline struct ll_sb_info *ll_i2sbi(struct inode *inode)
114 return ll_s2sbi(inode->i_sb);
117 static inline struct ll_inode_info *ll_i2info(struct inode *inode)
119 return (struct ll_inode_info *)&(inode->u.generic_ip);
122 static inline struct lustre_handle *ll_i2obdconn(struct inode *inode)
124 return ll_s2obdconn(inode->i_sb);
127 static inline void ll_ino2fid(struct ll_fid *fid, obd_id ino, __u32 generation,
131 fid->generation = generation;
135 static inline void ll_inode2fid(struct ll_fid *fid, struct inode *inode)
137 ll_ino2fid(fid, inode->i_ino, inode->i_generation,
138 inode->i_mode & S_IFMT);
141 static inline int ll_mds_easize(struct super_block *sb)
143 return sbi2mdc(ll_s2sbi(sb))->cl_max_mds_easize;
146 static inline int ll_ost_easize(struct super_block *sb)
148 return sbi2mdc(ll_s2sbi(sb))->cl_max_ost_easize;
152 int ll_lock(struct inode *dir, struct dentry *dentry,
153 struct lookup_intent *it, struct lustre_handle *lockh);
154 int ll_unlock(__u32 mode, struct lustre_handle *lockh);
157 void ll_intent_release(struct dentry *, struct lookup_intent *);
158 int ll_set_dd(struct dentry *de);
162 I originally implmented these as functions, then realized a macro
163 would be more helpful for debugging, so the CDEBUG messages show
164 the current calling function. The orignal functions are in llite/dcache.c
166 int ll_save_intent(struct dentry * de, struct lookup_intent * it);
167 struct lookup_intent * ll_get_intent(struct dentry * de);
170 #define IT_RELEASED_MAGIC 0xDEADCAFE
172 #define LL_SAVE_INTENT(de, it) \
174 LASSERT(ll_d2d(de) != NULL); \
176 down(&ll_d2d(de)->lld_it_sem); \
178 CDEBUG(D_DENTRY, "D_IT DOWN dentry %p fsdata %p intent: %s sem %d\n", \
179 de, ll_d2d(de), ldlm_it2str(de->d_it->it_op), \
180 atomic_read(&(ll_d2d(de)->lld_it_sem.count))); \
183 #define LL_GET_INTENT(de, it) \
187 LASSERT(ll_d2d(de) != NULL); \
188 LASSERT(it->it_op != IT_RELEASED_MAGIC); \
190 CDEBUG(D_DENTRY, "D_IT UP dentry %p fsdata %p intent: %s\n", \
191 de, ll_d2d(de), ldlm_it2str(de->d_it->it_op)); \
193 it->it_op = IT_RELEASED_MAGIC; \
194 up(&ll_d2d(de)->lld_it_sem); \
198 extern struct file_operations ll_dir_operations;
199 extern struct inode_operations ll_dir_inode_operations;
202 extern struct file_operations ll_file_operations;
203 extern struct inode_operations ll_file_inode_operations;
205 int ll_lock_callback(struct ldlm_lock *, struct ldlm_lock_desc *, void *data,
206 __u32 data_len, int flag);
207 int ll_size_lock(struct inode *, struct lov_stripe_md *, obd_off start,
208 int mode, struct lustre_handle **);
209 int ll_size_unlock(struct inode *, struct lov_stripe_md *, int mode,
210 struct lustre_handle *);
211 int ll_file_size(struct inode *inode, struct lov_stripe_md *md);
212 int ll_create_objects(struct super_block *sb, obd_id id, uid_t uid,
213 gid_t gid, struct lov_stripe_md **lsmp);
216 struct page *ll_getpage(struct inode *inode, unsigned long offset,
217 int create, int locked);
218 void ll_truncate(struct inode *inode);
221 void ll_update_inode(struct inode *, struct mds_body *);
224 extern struct inode_operations ll_fast_symlink_inode_operations;
225 extern struct inode_operations ll_symlink_inode_operations;
228 void ll_sysctl_init(void);
229 void ll_sysctl_clean(void);
231 #endif /* __KERNEL__ */
233 #include <asm/types.h>
235 #define LL_IOC_GETFLAGS _IOR ('f', 151, long)
236 #define LL_IOC_SETFLAGS _IOW ('f', 152, long)
237 #define LL_IOC_CLRFLAGS _IOW ('f', 153, long)
238 #define LL_IOC_LOV_SETSTRIPE _IOW ('f', 154, long)
241 __u64 lum_stripe_size;
242 __u32 lum_stripe_pattern;
243 __u32 lum_stripe_offset;
244 __u32 lum_stripe_count;
247 #define O_LOV_DELAY_CREATE 0100000000 /* hopefully this does not conflict */
249 #define LL_FILE_IGNORE_LOCK 0x00000001