diff options
Diffstat (limited to 'pfinet/linux-src/include/linux/coda_linux.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/coda_linux.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/coda_linux.h b/pfinet/linux-src/include/linux/coda_linux.h new file mode 100644 index 00000000..cd0e46ce --- /dev/null +++ b/pfinet/linux-src/include/linux/coda_linux.h @@ -0,0 +1,143 @@ +/* + * 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 inode_operations coda_symlink_inode_operations; + +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 *); + +/* 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 *); +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); +int coda_mycred(struct coda_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); + +/* defined in file.c */ +void coda_prepare_openfile(struct inode *coda_inode, struct file *coda_file, + struct inode *open_inode, struct file *open_file, + struct dentry *open_dentry); +void coda_restore_codafile(struct inode *coda_inode, struct file *coda_file, + struct inode *open_inode, struct file *open_file); +int coda_inode_grab(dev_t dev, ino_t ino, struct inode **ind); + +#define NB_SFS_SIZ 0x895440 + +/* 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 CHECK_CNODE(c) do { } while (0); + +#define CODA_ALLOC(ptr, cast, size) \ +do { \ + if (size < 3000) { \ + 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__); \ + } \ + memset( ptr, 0, size ); \ +} while (0) + + +#define CODA_FREE(ptr,size) do {if (size < 3000) { kfree_s((ptr), (size)); 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 */ + +static __inline__ struct ViceFid *coda_i2f(struct inode *inode) +{ + return &(inode->u.coda_i.c_fid); +} + +#define ITOC(inode) (&((inode)->u.coda_i)) + + + + + + +#endif |