Import changeset

1 files changed, 141 insertions, 0 deletions

diff --git a/include/linux/coda_linux.h b/include/linux/coda_linux.h
new file mode 100644
index 000000000000..f5e795919e4e
--- /dev/null
+++ b/include/linux/coda_linux.h
@@ -0,0 +1,141 @@
+/* 
+ * Coda File System, Linux Kernel module
+ * 
+ * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University
+ * Linux modifications (C) 1996, Peter J. Braam
+ * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University
+ *
+ * Carnegie Mellon University encourages users of this software to
+ * contribute improvements to the Coda project.
+ */
+
+#ifndef _LINUX_CODA_FS
+#define _LINUX_CODA_FS
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/sched.h> 
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/malloc.h>
+#include <linux/wait.h>		
+#include <linux/types.h>
+#include <linux/fs.h>
+
+/* operations */
+extern struct inode_operations coda_dir_inode_operations;
+extern struct inode_operations coda_file_inode_operations;
+extern struct inode_operations coda_ioctl_inode_operations;
+
+extern struct address_space_operations coda_file_aops;
+extern struct address_space_operations coda_symlink_aops;
+
+extern struct file_operations coda_dir_operations;
+extern struct file_operations coda_file_operations;
+extern struct file_operations coda_ioctl_operations;
+
+/* operations shared over more than one file */
+int coda_open(struct inode *i, struct file *f);
+int coda_release(struct inode *i, struct file *f);
+int coda_permission(struct inode *inode, int mask);
+int coda_revalidate_inode(struct dentry *);
+int coda_notify_change(struct dentry *, struct iattr *);
+
+/* global variables */
+extern int coda_debug;
+extern int coda_print_entry;
+extern int coda_access_cache;
+
+/* this file:  heloers */
+static __inline__ struct ViceFid *coda_i2f(struct inode *);
+static __inline__ char *coda_i2s(struct inode *);
+static __inline__ void coda_flag_inode(struct inode *, int flag);
+char *coda_f2s(ViceFid *f);
+char *coda_f2s2(ViceFid *f);
+int coda_isroot(struct inode *i);
+int coda_fid_is_volroot(struct ViceFid *);
+int coda_fid_is_weird(struct ViceFid *fid);
+int coda_iscontrol(const char *name, size_t length);
+
+void coda_load_creds(struct coda_cred *cred);
+void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);
+void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);
+unsigned short coda_flags_to_cflags(unsigned short);
+void print_vattr( struct coda_vattr *attr );
+int coda_cred_ok(struct coda_cred *cred);
+int coda_cred_eq(struct coda_cred *cred1, struct coda_cred *cred2);
+
+/* cache.c */
+void coda_purge_children(struct inode *, int);
+void coda_purge_dentries(struct inode *);
+
+/* sysctl.h */
+void coda_sysctl_init(void);
+void coda_sysctl_clean(void);
+
+
+/* debugging masks */
+#define D_SUPER     1   /* print results returned by Venus */ 
+#define D_INODE     2   /* print entry and exit into procedure */
+#define D_FILE      4   
+#define D_CACHE     8   /* cache debugging */
+#define D_MALLOC    16  /* print malloc, de-alloc information */
+#define D_CNODE     32
+#define D_UPCALL    64  /* up and downcall debugging */
+#define D_PSDEV    128  
+#define D_PIOCTL   256
+#define D_SPECIAL  512
+#define D_TIMING  1024
+#define D_DOWNCALL 2048
+ 
+#define CDEBUG(mask, format, a...)                                \
+  do {                                                            \
+  if (coda_debug & mask) {                                        \
+    printk("(%s,l. %d): ",  __FUNCTION__, __LINE__);              \
+    printk(format, ## a); }                                       \
+} while (0)
+
+#define ENTRY    \
+    if(coda_print_entry) printk("Process %d entered %s\n",current->pid,__FUNCTION__)
+
+#define EXIT    \
+    if(coda_print_entry) printk("Process %d leaving %s\n",current->pid,__FUNCTION__)
+
+#define CODA_ALLOC(ptr, cast, size)                                       \
+do {                                                                      \
+    if (size < PAGE_SIZE) {                                               \
+        ptr = (cast)kmalloc((unsigned long) size, GFP_KERNEL);            \
+        CDEBUG(D_MALLOC, "kmalloced: %lx at %p.\n", (long)size, ptr);     \
+     }  else {                                                            \
+        ptr = (cast)vmalloc((unsigned long) size);                        \
+	CDEBUG(D_MALLOC, "vmalloced: %lx at %p .\n", (long)size, ptr);}   \
+    if (ptr == 0) {                                                       \
+        printk("kernel malloc returns 0 at %s:%d\n", __FILE__, __LINE__); \
+    }                                                                     \
+    else memset( ptr, 0, size );                                          \
+} while (0)
+
+
+#define CODA_FREE(ptr,size) do {if (size < PAGE_SIZE) { kfree((ptr)); CDEBUG(D_MALLOC, "kfreed: %lx at %p.\n", (long) size, ptr); } else { vfree((ptr)); CDEBUG(D_MALLOC, "vfreed: %lx at %p.\n", (long) size, ptr);} } while (0)
+
+/* inode to cnode access functions */
+
+static __inline__ struct ViceFid *coda_i2f(struct inode *inode)
+{
+	return &(inode->u.coda_i.c_fid);
+}
+
+static __inline__ char *coda_i2s(struct inode *inode)
+{
+	return coda_f2s(&(inode->u.coda_i.c_fid));
+}
+
+/* this will not zap the inode away */
+static __inline__ void coda_flag_inode(struct inode *inode, int flag)
+{
+	inode->u.coda_i.c_flags |= flag;
+}		
+
+#define ITOC(inode) (&((inode)->u.coda_i))
+
+#endif