Documentation/filesystems/coda.rst

1 .. SPDX-License-Identifier: GPL-2.0
4 Coda Kernel-Venus Interface
10    Coda -- this document describes the client kernel-Venus interface.
35   level filesystem code needed for the operation of the Coda file sys-
124   leads to an almost natural environment for implementing a kernel-level
153   pre-processing, the VFS starts invoking exported routines in the FS
208   up processes.  The Coda FS driver processes VFS- and pioctl-requests
220   memory for the request.  Since the data buffer is re-used to hold the
283   processing.  The VFS routine will now continue.  (-- If a VFS request
286   to indicate points of no return have been passed.--)
291 ----------------------------
354 ----------------------------------------------------
405 		long            tv_nsec;        /* nanoseconds */
414 		long            va_fsid;        /* file system id (dev for now) */
415 		long            va_fileid;      /* file id */
417 		long            va_blocksize;   /* blocksize preferred for i/o */
427 		long            va_spare;       /* remain quad aligned */
432 --------------------------
475 ----------
494     contains the ViceFid of the root of the Coda filesystem. If a non-zero
500 ------------
503   Summary
549 -------------
552   Summary Get the attributes of a file.
593 -------------
596   Summary
616     in BSD style.  Attributes not to be changed are set to -1, apart from
628 ------------
659 ------------
662   Summary
722 -----------
725   Summary
768 -----------
771   Summary
801 --------------
804   Summary
836 -------------
839   Summary
868 ------------
871   Summary
897 ---------------
900   Summary
931 -----------
934   Summary
975 ------------
978   Summary
1012 ------------
1015   Summary
1053 -------------
1056   Summary
1083 --------------
1086   Summary
1119      files.  We will re-evaluate this during the directory revamp which is
1124 -----------
1127   Summary
1128     instructs Venus to do an FSDB->Get.
1161 ------------
1164   Summary
1189 ---------------
1192   Summary
1215 -----------
1218   Summary
1259 ---------------
1262   Summary
1294 -----------------
1297   Summary
1315 -----------------
1318   Summary
1334 ---------------
1337   Summary
1361 -------------
1364   Summary
1377     This is an out-of-band upcall to Venus to inform Venus
1437 ----------------
1444 -----------
1451   Summary
1462 ---------------
1468 	  struct cfs_purgeuser_out {/* CFS_PURGEUSER is a venus->kernel call */
1480 -------------
1486 	  struct cfs_zapfile_out {  /* CFS_ZAPFILE is a venus->kernel call */
1506 ------------
1512 	  struct cfs_zapdir_out {   /* CFS_ZAPDIR is a venus->kernel call */
1525 --------------
1532 	  struct cfs_zapvnode_out { /* CFS_ZAPVNODE is a venus->kernel call */
1545 --------------
1551 	  struct cfs_purgefid_out { /* CFS_PURGEFID is a venus->kernel call */
1565 -------------
1568   Summary
1574 	  struct cfs_replace_out { /* cfs_replace is a venus->kernel call */
1623 ------------------
1631     -  Before opening, no messages can be placed.
1633     -  Opening will remove any old messages still pending.
1635     -  Close will notify any sleeping processes that their upcall cannot
1638     -  Close will free all memory allocated by the message queues.