+/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
+ * vim:expandtab:shiftwidth=8:tabstop=8:
+ *
+ * lustre/smfs/smfs_internal.h
+ * Lustre filesystem abstraction routines
+ *
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ *
+ * This file is part of Lustre, http://www.lustre.org.
+ *
+ * Lustre is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * Lustre is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Lustre; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
#ifndef __LINUX_SMFS_H
#define __LINUX_SMFS_H
-struct smfs_inode_info {
- struct inode *smi_inode;
-};
+//#include <linux/lustre_fsfilt.h>
+#define SMFSDEV_NAME "/dev/smfsconf"
+#define SMFS_PSDEV_MINOR 250
+#define SMFS_PSDEV_MAJOR 10
-struct smfs_super_info {
- struct super_block *smsi_sb;
- struct vfsmount *smsi_mnt; /* mount the cache kern with kern_do_mount (like MDS) */
- __u32 flags; /* flags*/
- struct llog_ctxt *kml_llog; /*smfs kml llog*/
- int ops_check;
+struct option {
+ char *opt;
+ char *value;
+ struct list_head list;
};
-#define I2SMI(inode) ((struct smfs_inode_info *) (&(inode->u.generic_ip)))
-#define S2SMI(sb) ((struct smfs_super_info *) (&(sb->u.generic_sbp)))
-#define S2CSB(sb) (((struct smfs_super_info *) (&(sb->u.generic_sbp)))->smsi_sb)
-#define I2CI(inode) (((struct smfs_inode_info*) (&(inode->u.generic_ip)))->smi_inode)
-
-#define SB_OPS_CHECK 0x1
-#define INODE_OPS_CHECK 0x2
-#define FILE_OPS_CHECK 0x4
-#define DENTRY_OPS_CHECK 0x8
-#define DEV_OPS_CHECK 0x10
-#define SYMLINK_OPS_CHECK 0x20
-#define DIR_OPS_CHECK 0x40
-
-#define SM_DO_KML 0x1
-
-#include "smfs_support.h"
-
-struct journal_operations {
- void *(*tr_start)(struct inode *, int op);
- void (*tr_commit)(void *handle);
+struct smfs_control_device {
+ struct list_head smfs_dev_list;
};
-struct sm_ops {
- /* operations on the file store */
- struct super_operations sm_sb_ops;
-
- struct inode_operations sm_dir_iops;
- struct inode_operations sm_file_iops;
- struct inode_operations sm_sym_iops;
-
- struct file_operations sm_dir_fops;
- struct file_operations sm_file_fops;
- struct file_operations sm_sym_fops;
-
- struct dentry_operations sm_dentry_ops;
- struct journal_operations sm_journal_ops;
+#define SMFS_TYPE "smfs"
+#define IOC_SMFS_START _IOWR('s', 41, long)
+#define IOC_SMFS_STOP _IOWR('s', 42, long)
+#define IOC_SMFS_REINT _IOWR('s', 43, long)
+#define IOC_SMFS_UNDO _IOWR('s', 44, long)
-};
-struct option {
- char *opt;
- char *value;
- struct list_head list;
-};
+#ifdef __KERNEL__
+
+#define SB_OPS_CHECK 0x1
+#define INODE_OPS_CHECK 0x2
+#define FILE_OPS_CHECK 0x4
+#define DENTRY_OPS_CHECK 0x8
+#define DEV_OPS_CHECK 0x10
+#define SYMLINK_OPS_CHECK 0x20
+#define DIR_OPS_CHECK 0x40
+
+#define KML_LOG_NAME "kml_rec"
+
+#define MYPATHLEN(buffer, path) ((buffer) + PAGE_SIZE - (path))
+
+#define SMFS_KML_POST(dir, dentry, data1, data2, op, name, rc, label) \
+do { \
+ if (smfs_do_rec(dir) && !rc) { \
+ CDEBUG(D_INODE, "Do %s kml post for dir %lu \n", \
+ name, dir->i_ino); \
+ rc = smfs_post_kml_rec(dir, dentry, data1, data2, op); \
+ if (rc) \
+ GOTO(label, rc); \
+ } \
+} while(0)
+
+#define PACK_KML_REC_INIT(buffer, op_code) \
+do{ \
+ int opcode = op_code; \
+ memcpy(buffer, &opcode, sizeof(opcode)); \
+ buffer += sizeof(opcode); \
+} while (0)
extern int init_smfs_proc_sys(void);
/*options.c*/
extern void cleanup_option(void);
extern int init_option(char *data);
/*cache.c*/
-void sm_set_inode_ops(struct inode *cache_inode, struct inode *inode);
-void sm_set_sb_ops(struct super_block *cache_sb, struct super_block *sb);
-void init_smfs_cache(void);
-void cleanup_smfs_cache(void);
-void setup_sm_journal_ops(char * cache_type);
+extern void sm_set_inode_ops(struct inode *cache_inode, struct inode *inode);
+extern void sm_set_sb_ops(struct super_block *cache_sb, struct super_block *sb);
+extern void init_smfs_cache(void);
+extern void cleanup_smfs_cache(void);
+extern void sm_set_journal_ops(struct super_block *sb, char *cache_type);
+extern int smfs_init_sm_ops(struct smfs_super_info *smb);
+extern void smfs_cleanup_sm_ops(struct smfs_super_info *smb);
+static inline struct super_operations *cache_sops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_sb_ops;
+}
+static inline struct inode_operations *cache_diops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_dir_iops;
+}
+static inline struct inode_operations *cache_fiops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_file_iops;
+}
+static inline struct inode_operations *cache_siops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_sym_iops;
+}
+static inline struct file_operations *cache_dfops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_dir_fops;
+}
+static inline struct file_operations *cache_ffops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_file_fops;
+}
+static inline struct file_operations *cache_sfops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_sym_fops;
+}
+static inline struct dentry_operations *cache_dops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_dentry_ops;
+}
+static inline struct journal_operations *journal_ops(struct smfs_super_info *smb)
+{
+ return &smb->sm_ops->sm_journal_ops;
+}
/*super.c*/
extern int init_smfs(void);
extern int cleanup_smfs(void);
extern void smfs_put_super(struct super_block *sb);
-extern void duplicate_sb(struct super_block *csb, struct super_block *sb);
+extern struct super_block *smfs_get_sb_by_path(char *path, int len);
+extern struct vfsmount* get_vfsmount(struct super_block *sb);
/*sysctl.c*/
extern int sm_debug_level;
extern int sm_inodes;
extern long sm_kmemory;
extern int sm_stack;
/*dir.c*/
-extern struct inode_operations smfs_dir_iops;
-extern struct file_operations smfs_dir_fops;
-
-extern void d_unalloc(struct dentry *dentry);
-/*inode.c*/
-extern void duplicate_inode(struct inode *cache_inode, struct inode *inode);
+extern struct inode_operations smfs_dir_iops;
+extern struct file_operations smfs_dir_fops;
/*file.c*/
-extern void smfs_prepare_cachefile(struct inode *inode,
- struct file *file,
- struct inode *cache_inode,
- struct file *cache_file,
- struct dentry *cache_dentry);
-extern int smfs_ioctl(struct inode * inode, struct file * filp, unsigned int cmd,
- unsigned long arg);
+extern struct inode_operations smfs_file_iops;
+extern struct file_operations smfs_file_fops;
+extern int smfs_ioctl(struct inode * inode, struct file * filp,
+ unsigned int cmd, unsigned long arg);
extern int smfs_fsync(struct file * file, struct dentry *dentry, int datasync);
-extern int smfs_setattr(struct dentry *dentry, struct iattr *attr);
+extern int smfs_setattr(struct dentry *dentry, struct iattr *attr);
extern int smfs_setxattr(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags);
-extern int smfs_getxattr(struct dentry *dentry, const char *name,
- void *buffer, size_t size);
+ const void *value, size_t size, int flags);
+extern int smfs_getxattr(struct dentry *dentry, const char *name, void *buffer,
+ size_t size);
extern ssize_t smfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
extern int smfs_removexattr(struct dentry *dentry, const char *name);
-extern void smfs_update_file(struct file *file, struct file *cache_file);
+extern int smfs_open(struct inode * inode, struct file * filp);
+extern int smfs_release(struct inode * inode, struct file * filp);
+/*inode.c*/
+extern struct super_operations smfs_super_ops;
+/*symlink.c*/
+extern struct inode_operations smfs_sym_iops;
+extern struct file_operations smfs_sym_fops;
/*journal.c */
-extern void *smfs_trans_start(struct inode *inode, int op);
-extern void smfs_trans_commit(void *handle);
-extern int smfs_journal_mkdir(struct dentry *dentry,
- struct smfs_version *tgt_dir_ver,
- struct smfs_version *new_dir_ver,
- int mode);
-/*journal_ext3.c*/
-extern struct journal_operations smfs_ext3_journal_ops;
+extern void *smfs_trans_start(struct inode *inode, int op, void *desc_private);
+extern void smfs_trans_commit(struct inode *inode, void *handle,
+ int force_sync);
+extern int smfs_post_kml_rec(struct inode *dir, struct dentry *dst_dentry,
+ void *data1, void *data2, int op);
+
+extern int smfs_post_rec_write(struct inode *dir, struct dentry *dentry,
+ void *data1, void *data2);
+extern int smfs_post_rec_setattr(struct inode *dir, struct dentry *dentry,
+ void *data1, void *data2);
/*kml.c*/
extern int smfs_kml_init(struct super_block *sb);
-extern int smfs_do_kml(struct inode *dir);
-extern void smfs_getversion(struct smfs_version * smfs_version, struct inode * inode);
-extern int post_kml_mkdir(struct inode *dir, struct dentry *dentry);
+extern int smfs_do_rec(struct inode *inode);
+extern int smfs_rec_cleanup(struct super_block *sb);
+extern int smfs_rec_init(struct super_block *sb);
+extern int smfs_rec_unpack(struct smfs_proc_args *args, char *record,
+ char **pbuf, int *opcode);
+extern int smfs_process_rec(struct super_block *sb, int count,
+ char *dir, int flags);
+extern void smfs_rec_pack(struct update_record *rec,
+ struct inode *dst, void* data, int op);
+
+extern smfs_pack_rec_func smfs_get_rec_pack_type(struct super_block *sb);
+
+extern int ost_rec_pack_init(struct super_block *sb);
+/*ost_kml.c*/
+extern int mds_rec_pack_init(struct super_block *sb);
+
/*smfs_llog.c*/
-extern int smfs_llog_setup(struct llog_ctxt **ctxt);
+extern int smfs_llog_setup(struct super_block *sb, struct vfsmount *mnt);
+extern int smfs_llog_cleanup(struct super_block *sb);
+extern int smfs_llog_add_rec(struct smfs_super_info * sinfo, void *data,
+ int data_size);
+/*ioctl.c*/
+extern int init_smfs_psdev(void);
+extern void smfs_cleanup_psdev(void);
+
+/* cache_space.c */
+extern int do_cache_manage;
+struct cache_purge_queue {
+ wait_queue_head_t cpq_waitq;
+ struct super_block *cpq_sb;
+ struct llog_handle *cpq_loghandle;
+ __u32 cpq_flags;
+ struct completion cpq_comp;
+};
+/* opcodes */
+#define CACHE_SPACE_INSERT 0x1
+#define CACHE_SPACE_DELETE 0x2
+#define CACHE_SPACE_COMMIT 0x4
+
+#define CACHE_LRU_LOG "CACHE_LRU_LIST"
+
+extern int smfs_cache_hook(struct inode *inode);
+extern void cache_space_pre(struct inode *inode, int op);
+extern int cache_space_post(int op, void *handle, struct inode *old_dir,
+ struct dentry *old_dentry, struct inode *new_dir,
+ struct dentry *new_dentry);
+
+extern int cache_space_hook_setup(struct super_block *);
+extern int cache_space_hook_cleanup(void);
+extern int cache_space_hook_init(struct super_block *);
+extern int cache_space_hook_exit(struct super_block *);
+
+#define XATTR_SMFS_HOARD_MARK "hoard"
+#define XATTR_SMFS_CACHE_LOGCOOKIE "cache"
+#define XATTR_SMFS_ACTIVE_ENTRY "entry"
+
+
+static inline int set_hoard_priority(struct inode *inode, void *handle,
+ __u32 *hoard)
+{
+ struct fsfilt_operations *fsops = I2CSB(inode)->sm_fsfilt;
+ int rc;
+
+ rc = fsops->fs_set_xattr(inode, handle, XATTR_SMFS_HOARD_MARK,
+ hoard, sizeof(__u32));
+ RETURN(rc);
+}
+
+static inline int get_hoard_priority(struct inode *inode, __u32 *hoard)
+{
+ struct fsfilt_operations *fsops = I2CSB(inode)->sm_fsfilt;
+ int rc;
+
+ rc = fsops->fs_get_xattr(inode, XATTR_SMFS_HOARD_MARK,
+ hoard, sizeof(__u32));
+ RETURN(rc);
+}
+
+static inline int set_active_entry(struct inode *dir, __u64 *active_entry,
+ void *handle)
+{
+ struct fsfilt_operations *fsops = I2CSB(dir)->sm_fsfilt;
+ int rc;
+ *active_entry = cpu_to_le64(*active_entry);
+ rc = fsops->fs_set_xattr(dir, handle, XATTR_SMFS_ACTIVE_ENTRY,
+ active_entry, sizeof(__u64));
+ RETURN(rc);
+}
+static inline int get_active_entry(struct inode *dir, __u64 *active_entry)
+{
+ struct fsfilt_operations *fsops = I2CSB(dir)->sm_fsfilt;
+ int rc = fsops->fs_get_xattr(dir, XATTR_SMFS_ACTIVE_ENTRY,
+ active_entry, sizeof(__u64));
+ *active_entry = le64_to_cpu(*active_entry);
+ if (rc >= 0)
+ rc = 0;
+ RETURN(rc);
+}
+
+#define CACHE_HOOK_CREATE 1
+#define CACHE_HOOK_LOOKUP 2
+#define CACHE_HOOK_LINK 3
+#define CACHE_HOOK_UNLINK 4
+#define CACHE_HOOK_SYMLINK 5
+#define CACHE_HOOK_MKDIR 6
+#define CACHE_HOOK_RMDIR 7
+#define CACHE_HOOK_MKNOD 8
+#define CACHE_HOOK_RENAME 9
+
+#define CACHE_HOOK_MAX 9
+
+#define SMFS_CACHE_HOOK_PRE(op, handle, dir) \
+{ \
+ if (smfs_cache_hook(dir)) { \
+ LASSERT(handle != NULL); \
+ CDEBUG(D_INODE, "cache hook pre: op %d, dir %lu\n", \
+ op, dir->i_ino); \
+ cache_space_pre(dir, op); \
+ } \
+}
+
+#define SMFS_CACHE_HOOK_POST(op, handle, old_dir, old_dentry, \
+ new_dir, new_dentry, rc, label) \
+{ \
+ if (!rc && smfs_cache_hook(old_dir)) { \
+ LASSERT(handle != NULL); \
+ CDEBUG(D_INODE, "cache hook post: op %d, dir %lu\n", \
+ op, old_dir->i_ino); \
+ rc = cache_space_post(op, handle, old_dir, old_dentry, \
+ new_dir, new_dentry); \
+ if (rc) \
+ GOTO(label, rc); \
+ } \
+}
+
+#endif /*__KERNEL*/
#endif /* __LINUX_SMFS_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff