1efb51b1de
When VFS detects that an FS has crashed and tries to clean up resources, it marks fairly late in the process that a vmnt is not to be used again (to send requests to). This allows a thread to become blocked on a vmnt after all blocked threads were stopped, but before it finds out it shouldn't try to send to that vmnt.
391 lines
17 KiB
C
391 lines
17 KiB
C
#ifndef __VFS_PROTO_H__
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#define __VFS_PROTO_H__
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/* Function prototypes. */
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#include "timers.h"
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#include "request.h"
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#include "tll.h"
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#include "threads.h"
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#include <minix/rs.h>
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/* Structs used in prototypes must be declared as such first. */
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struct filp;
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struct fproc;
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struct vmnt;
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struct vnode;
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struct lookup;
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struct worker_thread;
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struct job;
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typedef struct filp * filp_id_t;
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/* comm.c */
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_PROTOTYPE(void fs_cancel, (struct vmnt *vmp) );
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_PROTOTYPE(int fs_sendrec, (endpoint_t fs_e, message *reqm) );
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_PROTOTYPE(void fs_sendmore, (struct vmnt *vmp) );
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_PROTOTYPE(void send_work, (void) );
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/* device.c */
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_PROTOTYPE( int dev_open, (dev_t dev, endpoint_t proc_e, int flags) );
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_PROTOTYPE( int dev_reopen, (dev_t dev, int filp_no, int flags) );
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_PROTOTYPE( int dev_close, (dev_t dev, int filp_no) );
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_PROTOTYPE( int bdev_open, (dev_t dev, int access) );
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_PROTOTYPE( int bdev_close, (dev_t dev) );
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_PROTOTYPE( int dev_io, (int op, dev_t dev, endpoint_t proc_e, void *buf,
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u64_t pos, size_t bytes, int flags, int suspend_reopen) );
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_PROTOTYPE( int gen_opcl, (int op, dev_t dev, endpoint_t task_nr, int flags));
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_PROTOTYPE( int gen_io, (endpoint_t driver_e, message *mess_ptr) );
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_PROTOTYPE( int asyn_io, (int task_nr, message *mess_ptr) );
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_PROTOTYPE( int no_dev, (int op, dev_t dev, int proc, int flags) );
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_PROTOTYPE( int no_dev_io, (int, message *) );
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_PROTOTYPE( int tty_opcl, (int op, dev_t dev, endpoint_t proc, int flags));
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_PROTOTYPE( int ctty_opcl, (int op, dev_t dev, endpoint_t proc, int flags));
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_PROTOTYPE( int clone_opcl, (int op, dev_t dev, int proc, int flags) );
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_PROTOTYPE( int ctty_io, (int task_nr, message *mess_ptr) );
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_PROTOTYPE( int do_ioctl, (void) );
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_PROTOTYPE( void pm_setsid, (int proc_e) );
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_PROTOTYPE( void dev_status, (message *) );
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_PROTOTYPE( void bdev_up, (int major) );
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_PROTOTYPE( void cdev_up, (int major) );
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_PROTOTYPE( endpoint_t find_suspended_ep, (endpoint_t driver,
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cp_grant_id_t g) );
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_PROTOTYPE( void reopen_reply, (void) );
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_PROTOTYPE( void open_reply, (void) );
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/* dmap.c */
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_PROTOTYPE( int do_mapdriver, (void) );
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_PROTOTYPE( void init_dmap, (void) );
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_PROTOTYPE( int dmap_driver_match, (endpoint_t proc, int major) );
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_PROTOTYPE( void dmap_endpt_up, (int proc_nr, int is_blk) );
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_PROTOTYPE( void dmap_unmap_by_endpt, (int proc_nr) );
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_PROTOTYPE( struct dmap *get_dmap, (endpoint_t proc_e) );
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_PROTOTYPE( int do_mapdriver, (void) );
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_PROTOTYPE( int map_service, (struct rprocpub *rpub) );
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_PROTOTYPE( void dmap_unmap_by_endpt, (int proc_nr) );
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_PROTOTYPE( struct dmap *get_dmap, (endpoint_t proc_e) );
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_PROTOTYPE( int map_driver, (const char *label, int major, endpoint_t proc_nr,
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int dev_style, int flags) );
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_PROTOTYPE( int map_service, (struct rprocpub *rpub) );
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/* elf_core_dump.c */
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_PROTOTYPE( void write_elf_core_file, (struct filp *f, int csig,
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char *exe_name) );
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/* exec.c */
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_PROTOTYPE( int pm_exec, (int proc_e, char *path, vir_bytes path_len,
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char *frame, vir_bytes frame_len, vir_bytes *pc));
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#define check_bsf_lock() do { \
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assert(mutex_trylock(&bsf_lock) == 0); \
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unlock_bsf(); \
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} while(0)
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/* filedes.c */
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_PROTOTYPE( void check_filp_locks, (void) );
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_PROTOTYPE( void check_filp_locks_by_me, (void) );
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_PROTOTYPE( void init_filps, (void) );
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_PROTOTYPE( struct filp *find_filp, (struct vnode *vp, mode_t bits) );
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_PROTOTYPE( int get_fd, (int start, mode_t bits, int *k,
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struct filp **fpt) );
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_PROTOTYPE( struct filp *get_filp, (int fild, tll_access_t locktype) );
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_PROTOTYPE( struct filp *get_filp2, (struct fproc *rfp, int fild,
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tll_access_t locktype) );
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_PROTOTYPE( void lock_filp, (struct filp *filp, tll_access_t locktype) );
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_PROTOTYPE( void unlock_filp, (struct filp *filp) );
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_PROTOTYPE( void unlock_filps, (struct filp *filp1, struct filp *filp2) );
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_PROTOTYPE( int invalidate_filp, (struct filp *) );
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_PROTOTYPE( void invalidate_filp_by_endpt, (endpoint_t proc_e) );
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_PROTOTYPE( int do_verify_fd, (void) );
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_PROTOTYPE( int set_filp, (filp_id_t sfilp) );
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_PROTOTYPE( int do_set_filp, (void) );
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_PROTOTYPE( int copy_filp, (endpoint_t to_ep, filp_id_t cfilp) );
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_PROTOTYPE( int do_copy_filp, (void) );
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_PROTOTYPE( int put_filp, (filp_id_t pfilp) );
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_PROTOTYPE( int do_put_filp, (void) );
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_PROTOTYPE( int cancel_fd, (endpoint_t ep, int fd) );
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_PROTOTYPE( int do_cancel_fd, (void) );
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_PROTOTYPE( void close_filp, (struct filp *fp) );
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/* fscall.c */
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_PROTOTYPE( void nested_fs_call, (message *m) );
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/* link.c */
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_PROTOTYPE( int do_link, (void) );
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_PROTOTYPE( int do_unlink, (void) );
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_PROTOTYPE( int do_rename, (void) );
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_PROTOTYPE( int do_truncate, (void) );
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_PROTOTYPE( int do_ftruncate, (void) );
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_PROTOTYPE( int truncate_vnode, (struct vnode *vp, off_t newsize) );
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_PROTOTYPE( int rdlink_direct, (char *orig_path, char *link_path,
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struct fproc *rfp) );
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/* lock.c */
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_PROTOTYPE( int lock_op, (struct filp *f, int req) );
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_PROTOTYPE( void lock_revive, (void) );
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/* main.c */
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_PROTOTYPE( int main, (void) );
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_PROTOTYPE( void reply, (int whom, int result) );
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_PROTOTYPE( void lock_proc, (struct fproc *rfp, int force_lock) );
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_PROTOTYPE( void unlock_proc, (struct fproc *rfp) );
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_PROTOTYPE( void *do_dummy, (void *arg) );
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/* misc.c */
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_PROTOTYPE( int do_dup, (void) );
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_PROTOTYPE( void pm_exit, (int proc) );
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_PROTOTYPE( int do_fcntl, (void) );
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_PROTOTYPE( void pm_fork, (int pproc, int cproc, int cpid) );
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_PROTOTYPE( void pm_setgid, (int proc_e, int egid, int rgid) );
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_PROTOTYPE( void pm_setuid, (int proc_e, int euid, int ruid) );
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_PROTOTYPE( void pm_setgroups, (int proc_e, int ngroups, gid_t *addr) );
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_PROTOTYPE( int do_sync, (void) );
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_PROTOTYPE( int do_fsync, (void) );
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_PROTOTYPE( void pm_reboot, (void) );
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_PROTOTYPE( int do_svrctl, (void) );
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_PROTOTYPE( int do_getsysinfo, (void) );
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_PROTOTYPE( int pm_dumpcore, (endpoint_t proc_e, int sig,
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vir_bytes exe_name) );
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_PROTOTYPE( void ds_event, (void) );
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/* mount.c */
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_PROTOTYPE( int do_fsready, (void) );
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_PROTOTYPE( int do_mount, (void) );
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_PROTOTYPE( int do_umount, (void) );
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_PROTOTYPE( int is_nonedev, (dev_t dev) );
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_PROTOTYPE( void mount_pfs, (void) );
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_PROTOTYPE( int mount_fs, (dev_t dev, char fullpath[PATH_MAX+1],
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endpoint_t fs_e, int rdonly,
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char mount_label[LABEL_MAX]) );
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_PROTOTYPE( int unmount, (dev_t dev, char *label) );
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_PROTOTYPE( void unmount_all, (void) );
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/* open.c */
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_PROTOTYPE( int do_close, (void) );
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_PROTOTYPE( int close_fd, (struct fproc *rfp, int fd_nr) );
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_PROTOTYPE( void close_reply, (void) );
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_PROTOTYPE( int common_open, (char path[PATH_MAX], int oflags,
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mode_t omode) );
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_PROTOTYPE( int do_creat, (void) );
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_PROTOTYPE( int do_lseek, (void) );
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_PROTOTYPE( int do_llseek, (void) );
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_PROTOTYPE( int do_mknod, (void) );
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_PROTOTYPE( int do_mkdir, (void) );
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_PROTOTYPE( int do_open, (void) );
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_PROTOTYPE( int do_slink, (void) );
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_PROTOTYPE( int do_vm_open, (void) );
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_PROTOTYPE( int do_vm_close, (void) );
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/* path.c */
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_PROTOTYPE( struct vnode *advance, (struct vnode *dirp, struct lookup *resolve,
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struct fproc *rfp) );
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_PROTOTYPE( struct vnode *eat_path, (struct lookup *resolve,
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struct fproc *rfp) );
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_PROTOTYPE( struct vnode *last_dir, (struct lookup *resolve,
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struct fproc *rfp) );
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_PROTOTYPE( void lookup_init, (struct lookup *resolve, char *path, int flags,
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struct vmnt **vmp, struct vnode **vp) );
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_PROTOTYPE( int get_name, (struct vnode *dirp, struct vnode *entry,
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char *_name) );
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_PROTOTYPE( int canonical_path, (char *orig_path, struct fproc *rfp) );
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_PROTOTYPE( int do_check_perms, (void) );
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/* pipe.c */
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_PROTOTYPE( int do_pipe, (void) );
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_PROTOTYPE( int map_vnode, (struct vnode *vp, endpoint_t fs_e) );
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_PROTOTYPE( void unpause, (int proc_nr_e) );
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_PROTOTYPE( int pipe_check, (struct vnode *vp, int rw_flag,
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int oflags, int bytes, u64_t position, int notouch) );
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_PROTOTYPE( void release, (struct vnode *vp, int call_nr, int count) );
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_PROTOTYPE( void revive, (int proc_nr, int bytes) );
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_PROTOTYPE( void suspend, (int task) );
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_PROTOTYPE( void pipe_suspend, (struct filp *rfilp, char *buf, size_t size));
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_PROTOTYPE( void unsuspend_by_endpt, (endpoint_t) );
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_PROTOTYPE( void wait_for, (endpoint_t) );
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#if DO_SANITYCHECKS
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_PROTOTYPE( int check_pipe, (void) );
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#endif
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/* protect.c */
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_PROTOTYPE( int do_access, (void) );
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_PROTOTYPE( int do_chmod, (void) );
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_PROTOTYPE( int do_chown, (void) );
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_PROTOTYPE( int do_umask, (void) );
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_PROTOTYPE( int forbidden, (struct fproc *rfp, struct vnode *vp,
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mode_t access_desired) );
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_PROTOTYPE( int read_only, (struct vnode *vp) );
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/* read.c */
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_PROTOTYPE( int do_read, (void) );
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_PROTOTYPE( int do_getdents, (void) );
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_PROTOTYPE( void lock_bsf, (void) );
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_PROTOTYPE( void unlock_bsf, (void) );
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_PROTOTYPE( int do_read_write, (int rw_flag) );
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_PROTOTYPE( int read_write, (int rw_flag, struct filp *f, char *buffer,
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size_t nbytes, endpoint_t for_e) );
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_PROTOTYPE( int rw_pipe, (int rw_flag, endpoint_t usr, struct filp *f,
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char *buf, size_t req_size) );
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/* request.c */
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_PROTOTYPE( int req_breadwrite, (endpoint_t fs_e, endpoint_t user_e,
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dev_t dev, u64_t pos, unsigned int num_of_bytes,
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char *user_addr, int rw_flag,
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u64_t *new_posp, unsigned int *cum_iop) );
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_PROTOTYPE( int req_chmod, (int fs_e, ino_t inode_nr, mode_t rmode,
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mode_t *new_modep) );
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_PROTOTYPE( int req_chown, (endpoint_t fs_e, ino_t inode_nr,
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uid_t newuid, gid_t newgid, mode_t *new_modep) );
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_PROTOTYPE( int req_create, (int fs_e, ino_t inode_nr, int omode,
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uid_t uid, gid_t gid, char *path, node_details_t *res) );
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_PROTOTYPE( int req_flush, (endpoint_t fs_e, dev_t dev) );
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_PROTOTYPE( int req_fstatfs, (int fs_e, int who_e, char *buf) );
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_PROTOTYPE( int req_statvfs, (int fs_e, int who_e, char *buf) );
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_PROTOTYPE( int req_ftrunc, (endpoint_t fs_e, ino_t inode_nr,
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off_t start, off_t end) );
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_PROTOTYPE( int req_getdents, (endpoint_t fs_e, ino_t inode_nr,
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u64_t pos, char *buf, size_t size,
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u64_t *new_pos, int direct) );
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_PROTOTYPE( int req_inhibread, (endpoint_t fs_e, ino_t inode_nr) );
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_PROTOTYPE( int req_link, (endpoint_t fs_e, ino_t link_parent,
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char *lastc, ino_t linked_file) );
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_PROTOTYPE( int req_lookup, (endpoint_t fs_e, ino_t dir_ino, ino_t root_ino,
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uid_t uid, gid_t gid, struct lookup *resolve,
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lookup_res_t *res, struct fproc *rfp) );
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_PROTOTYPE( int req_mkdir, (endpoint_t fs_e, ino_t inode_nr,
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char *lastc, uid_t uid, gid_t gid, mode_t dmode) );
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_PROTOTYPE( int req_mknod, (endpoint_t fs_e, ino_t inode_nr,
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char *lastc, uid_t uid, gid_t gid,
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mode_t dmode, dev_t dev) );
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_PROTOTYPE( int req_mountpoint, (endpoint_t fs_e, ino_t inode_nr) );
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_PROTOTYPE( int req_newnode, (endpoint_t fs_e, uid_t uid,
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gid_t gid, mode_t dmode,
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dev_t dev, struct node_details *res) );
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_PROTOTYPE( int req_putnode, (int fs_e, ino_t inode_nr, int count) );
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_PROTOTYPE( int req_rdlink, (endpoint_t fs_e, ino_t inode_nr,
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endpoint_t who_e, char *buf, size_t len,
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int direct) );
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_PROTOTYPE( int req_readsuper, (endpoint_t fs_e, char *driver_name,
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dev_t dev, int readonly, int isroot,
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struct node_details *res_nodep,
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int *con_reqs) );
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_PROTOTYPE( int req_readwrite, (endpoint_t fs_e, ino_t inode_nr,
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u64_t pos, int rw_flag,
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endpoint_t user_e, char *user_addr,
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unsigned int num_of_bytes, u64_t *new_posp,
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unsigned int *cum_iop) );
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_PROTOTYPE( int req_rename, (endpoint_t fs_e, ino_t old_dir,
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char *old_name, ino_t new_dir, char *new_name) );
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_PROTOTYPE( int req_rmdir, (endpoint_t fs_e, ino_t inode_nr,
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char *lastc) );
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_PROTOTYPE(int req_slink, (endpoint_t fs_e, ino_t inode_nr, char *lastc,
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endpoint_t who_e, char *path_addr,
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unsigned short path_length, uid_t uid, gid_t gid) );
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_PROTOTYPE( int req_stat, (int fs_e, ino_t inode_nr, int who_e,
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char *buf, int pos, int stat_version) );
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_PROTOTYPE( int req_sync, (endpoint_t fs_e) );
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_PROTOTYPE( int req_unlink, (endpoint_t fs_e, ino_t inode_nr,
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char *lastc) );
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_PROTOTYPE( int req_unmount, (endpoint_t fs_e) );
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_PROTOTYPE( int req_utime, (endpoint_t fs_e, ino_t inode_nr,
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time_t actime, time_t modtime) );
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_PROTOTYPE( int req_newdriver, (endpoint_t fs_e, dev_t dev,
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char *label) );
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/* stadir.c */
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_PROTOTYPE( int do_chdir, (void) );
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_PROTOTYPE( int do_fchdir, (void) );
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_PROTOTYPE( int do_chroot, (void) );
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_PROTOTYPE( int do_fstat, (void) );
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_PROTOTYPE( int do_stat, (void) );
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_PROTOTYPE( int do_fstatfs, (void) );
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_PROTOTYPE( int do_statvfs, (void) );
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_PROTOTYPE( int do_fstatvfs, (void) );
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_PROTOTYPE( int do_rdlink, (void) );
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_PROTOTYPE( int do_lstat, (void) );
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/* time.c */
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_PROTOTYPE( int do_utime, (void) );
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/* tll.c */
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_PROTOTYPE( void tll_downgrade, (tll_t *tllp) );
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_PROTOTYPE( int tll_haspendinglock, (tll_t *tllp) );
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_PROTOTYPE( void tll_init, (tll_t *tllp) );
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_PROTOTYPE( int tll_islocked, (tll_t *tllp) );
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_PROTOTYPE( int tll_lock, (tll_t *tllp, tll_access_t locktype) );
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_PROTOTYPE( int tll_locked_by_me, (tll_t *tllp) );
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_PROTOTYPE( void tll_lockstat, (tll_t *tllp) );
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_PROTOTYPE( int tll_unlock, (tll_t *tllp) );
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_PROTOTYPE( void tll_upgrade, (tll_t *tllp) );
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/* utility.c */
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_PROTOTYPE( time_t clock_time, (void) );
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_PROTOTYPE( unsigned conv2, (int norm, int w) );
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_PROTOTYPE( long conv4, (int norm, long x) );
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_PROTOTYPE( int fetch_name, (char *path, int len, int flag, char *dest) );
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_PROTOTYPE( int no_sys, (void) );
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_PROTOTYPE( int isokendpt_f, (char *f, int l, endpoint_t e, int *p, int ft));
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_PROTOTYPE( int in_group, (struct fproc *rfp, gid_t grp) );
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#define okendpt(e, p) isokendpt_f(__FILE__, __LINE__, (e), (p), 1)
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#define isokendpt(e, p) isokendpt_f(__FILE__, __LINE__, (e), (p), 0)
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/* vmnt.c */
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_PROTOTYPE( void check_vmnt_locks, (void) );
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_PROTOTYPE( void check_vmnt_locks_by_me, (struct fproc *rfp) );
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_PROTOTYPE( void mark_vmnt_free, (struct vmnt *vmp) );
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_PROTOTYPE( struct vmnt *get_free_vmnt, (void) );
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_PROTOTYPE( struct vmnt *find_vmnt, (endpoint_t fs_e) );
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_PROTOTYPE( struct vmnt *get_locked_vmnt, (struct fproc *rfp) );
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_PROTOTYPE( void init_vmnts, (void) );
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_PROTOTYPE( int lock_vmnt, (struct vmnt *vp, tll_access_t locktype) );
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_PROTOTYPE( void unlock_vmnt, (struct vmnt *vp) );
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_PROTOTYPE( void vmnt_unmap_by_endpt, (endpoint_t proc_e) );
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/* vnode.c */
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_PROTOTYPE( void check_vnode_locks, (void) );
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_PROTOTYPE( void check_vnode_locks_by_me, (struct fproc *rfp) );
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_PROTOTYPE( struct vnode *get_free_vnode, (void) );
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_PROTOTYPE( struct vnode *find_vnode, (int fs_e, int numb) );
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_PROTOTYPE( void init_vnodes, (void) );
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_PROTOTYPE( int is_vnode_locked, (struct vnode *vp) );
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_PROTOTYPE( int lock_vnode, (struct vnode *vp, tll_access_t locktype) );
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_PROTOTYPE( void unlock_vnode, (struct vnode *vp) );
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_PROTOTYPE( void dup_vnode, (struct vnode *vp) );
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_PROTOTYPE( void put_vnode, (struct vnode *vp) );
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_PROTOTYPE( void vnode_clean_refs, (struct vnode *vp) );
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#if DO_SANITYCHECKS
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_PROTOTYPE( int check_vrefs, (void) );
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#endif
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/* write.c */
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_PROTOTYPE( int do_write, (void) );
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/* gcov.c */
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|
_PROTOTYPE( int do_gcov_flush, (void) );
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#if ! USE_COVERAGE
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|
#define do_gcov_flush no_sys
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|
#endif
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/* select.c */
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_PROTOTYPE( int do_select, (void) );
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|
_PROTOTYPE( void init_select, (void) );
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_PROTOTYPE( void select_callback, (struct filp *, int ops) );
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_PROTOTYPE( void select_forget, (endpoint_t proc_e) );
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|
_PROTOTYPE( void select_reply1, (endpoint_t driver_e, int minor, int status));
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|
_PROTOTYPE( void select_reply2, (endpoint_t driver_e, int minor, int status));
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_PROTOTYPE( void select_timeout_check, (timer_t *) );
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_PROTOTYPE( void select_unsuspend_by_endpt, (endpoint_t proc) );
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/* worker.c */
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|
_PROTOTYPE( int worker_available, (void) );
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_PROTOTYPE( struct worker_thread *worker_get, (thread_t worker_tid) );
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|
_PROTOTYPE( struct job *worker_getjob, (thread_t worker_tid) );
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|
_PROTOTYPE( void worker_init, (struct worker_thread *worker) );
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|
_PROTOTYPE( struct worker_thread *worker_self, (void) );
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|
_PROTOTYPE( void worker_signal, (struct worker_thread *worker) );
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|
_PROTOTYPE( void worker_start, (void *(*func)(void *arg)) );
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|
_PROTOTYPE( void worker_stop, (struct worker_thread *worker) );
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|
_PROTOTYPE( void worker_stop_by_endpt, (endpoint_t proc_e) );
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|
_PROTOTYPE( void worker_wait, (void) );
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|
_PROTOTYPE( void sys_worker_start, (void *(*func)(void *arg)) );
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|
_PROTOTYPE( void dl_worker_start, (void *(*func)(void *arg)) );
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|
#endif
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