#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{ \
buffer += sizeof(opcode); \
} while (0)
+
extern int init_smfs_proc_sys(void);
/*options.c*/
extern int get_opt(struct option **option, char **pos);
{
return &smb->sm_ops->sm_journal_ops;
}
+
+struct smfs_hook_ops *smfs_alloc_hook_ops(char *name,
+ smfs_hook_func pre_hook,
+ smfs_hook_func post_hook);
+
+void smfs_free_hook_ops(struct smfs_hook_ops *hops);
+int smfs_register_hook_ops(struct super_block *sb,
+ struct smfs_hook_ops *smh_ops);
+
+struct smfs_hook_ops *smfs_unregister_hook_ops(struct super_block *sb,
+ char *name);
/*super.c*/
extern int init_smfs(void);
extern int cleanup_smfs(void);
rc = 0;
RETURN(rc);
}
+#define HOOK_CREATE 1
+#define HOOK_LOOKUP 2
+#define HOOK_LINK 3
+#define HOOK_UNLINK 4
+#define HOOK_SYMLINK 5
+#define HOOK_MKDIR 6
+#define HOOK_RMDIR 7
+#define HOOK_MKNOD 8
+#define HOOK_RENAME 9
+#define HOOK_SETATTR 10
+#define HOOK_WRITE 11
+#define HOOK_MAX 11
-#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, rc) \
-{ \
- while (smfs_cache_hook(dir)) { \
- if (!handle) { \
- handle = smfs_trans_start(dir, KML_CACHE_NOOP, NULL); \
- if (IS_ERR(handle)) { \
- rc = -ENOSPC; \
- break; \
- } \
- } \
- CDEBUG(D_INODE, "cache hook pre: op %d, dir %lu\n", \
- op, dir->i_ino); \
- cache_space_pre(dir, op); \
- break; \
- } \
-}
-
-#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); \
- } \
-}
-#if CONFIG_SNAPFS
-/*snap macros*/
-#define SMFS_PRE_COW(dir, dentry, new_dir, new_dentry, op, name, rc, label) \
+#define PRE_HOOK 0
+#define POST_HOOK 1
+#define SMFS_HOOK(inode, dentry, data1, data2, op, handle, flag, rc, label) \
do { \
- if (smfs_do_cow(dir) && !rc) { \
- CDEBUG(D_INODE, "Do %s snap post for dir %lu \n", \
- name, dir->i_ino); \
- rc = smfs_cow(dir, dentry, new_dir, new_dentry, op); \
- if (rc) \
- GOTO(label, rc); \
+ LASSERT(inode->i_sb); \
+ if (!rc) { \
+ struct smfs_super_info *smb = S2SMI(inode->i_sb); \
+ struct list_head *hlist = &smb->smsi_hook_list; \
+ struct list_head *p; \
+ \
+ list_for_each(p, hlist) { \
+ struct smfs_hook_ops *hops; \
+ \
+ hops = list_entry(p, typeof(*hops), smh_list); \
+ if (flag == PRE_HOOK && hops->smh_pre_op) \
+ rc = hops->smh_pre_op(inode, dentry, data1, \
+ data2, op, handle); \
+ else if (flag == POST_HOOK && hops->smh_post_op) \
+ rc = hops->smh_post_op(inode, dentry, data1, \
+ data2, op, handle); \
+ if (rc) \
+ break; \
+ } \
} \
-} while(0)
+ if (rc) \
+ GOTO(label, rc); \
+} while(0) \
+#if CONFIG_SNAPFS
extern int smfs_cow_init(struct super_block *sb);
extern int smfs_cow_cleanup(struct super_block *sb);
extern int smfs_init_snap_inode_info(struct inode *inode, int flags);
#else
#define SMFS_PRE_COW(dir, dentry, new_dir, new_dentry, op, name, rc, label)
#endif
-
#endif /*__KERNEL*/
#endif /* __LINUX_SMFS_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff