+Since 1.5.20
+
+* changed the enum values for cm_serverRef_t state info to use a
+ private name space to avoid collisions (srv_)
+
+* added a srv_deleted state for cm_serverRef_t objects. This
+ state is set when cm_FreeServerList() is called with the
+ CM_FREESERVERLIST_DELETE flag set. cm_FreeServerList() may
+ not always delete the cm_serverRef_t from the list if it is
+ still in use by another thread. the srv_deleted state means
+ the object's contents are no longer valid and it must be
+ skipped. It will be deleted the next time the object is
+ freed and the refcount hits zero.
+
+* the srv_deleted state is also used when a file server reports
+ either VNOVOL or VMOVED instead of marking the cm_serverRef_t
+ as offline. This is done to prevent additional usage of the
+ stale vldb data while waiting for the update volume request
+ to complete.
+
+* added a state field to the cm_volume_t object (enum volstate
+ vl_ name space) that maintains the state of the volume based
+ upon the states of all of the cm_serverRef_t and cm_server_t
+ objects.
+
+* modified cm_UpdateVolume() to set the state of the cm_volume_t
+ RW, RO, and BK to either vl_alldown or vl_online. There can't
+ be any other states because cm_UpdateVolume() destroys any
+ previous knowledge we might have had regarding busy or offline
+ volume status
+
+* modified cm_UpdateVolume() to update the volume name in the
+ cm_volume_t to the volume base name if the previous value was
+ a volume ID.
+
+* modified cm_FollowMountPoint() to check to see if the volume
+ name is a volume ID and if so call cm_GetVolumeByID instead
+ of cm_GetVolumeByName. This ensures that volume IDs are always
+ looked up as numeric values. There is no longer a need to
+ maintain a separate cm_volume_t containing the string representation
+ of the ID value.
+
+* Added a flags parameter to cm_GetVolumeByName() and cm_GetVolumeByID().
+ The first flag is a "CREATE" flag which is set by all existing
+ calls. The flag is not set by calls to cm_GetVolumeByID() from
+ the server probe code when volume status is being updated. We
+ do not want the server probe operation to result in additional
+ turnover in the cached volume data. The second flag is NO_LRU_UPDATE
+ which is set when the server probe code updates the volume status.
+ This flag will be used to prevent the server probe operation from
+ changing the order of the least recently used queue.
+
+* Modified cm_GetVolumeByName to ensure that only one cm_volume_t is
+ allocated for a given set of normal, readonly, and backup volumes
+ regardless of whether or not the volume is accessed via name or
+ ID number. The cm_volume_t namep field is always the base name
+ of the volume.
+
+* Added a new volume state, vl_unknown. This state is used as
+ the initial state for all cm_volume_t when the cache manager starts,
+ for each cm_volume_t at creation, and for each cm_volume_t when
+ recycling. The cache manager does not know the state of all
+ volumes in the world, only those that are in the cache and for
+ which it has queried the VLDB and hosting file servers.
+
+* modified cm_GetVolumeByName() to initialize the state of a
+ volume to vl_unknown. The actual state will be set when a
+ cm_VolumeUpdate() call completes successfully.
+
+* changed name of scache hash table variables to avoid ambiguity
+ when adding hash tables for volumes
+
+* fix a buffer overrun in sys\pioctl_nt.c pioctl().
+
+* modified cm_UpdateVolume() to handle the case in which there is
+ no RW volume but there is are RO volumes for a given base name.
+ This is done by querying for the ".readonly" volume name if the
+ base name does not exist in the VLDB. We never query for the
+ .backup name because under the current usage model a .backup
+ volume may only exist on the server that the read-write volume
+ is located. If there is no RW volume, there can be no .backup.
+
+* Added four hash tables for cm_volume_t objects to improve the
+ search time of cm_GetVolumeByID(), cm_GetVolumeByName() and
+ cm_ForceUpdateVolume(). One each for Name, RWID, ROID, and
+ BKID. Three ID hash tables are necessary as long as it is
+ desireable to maintain a single cm_volume_t containing all
+ of the related RW, RO, and BK volume data. Having the RW and
+ RO volume data in the same object is necessary for the
+ implementation of cm_GetROVolumeID() which returns either the
+ RO or RW ID depending upon the existence of RO volume instances.
+
+* Added a volume LRU queue so that volume reuse becomes fairer.
+ This does not replace the all Volumes list which is used when
+ it is desireable to walk a list of all the volumes whose order
+ is not going to change out from underneath you which makes it
+ safe to drop the cm_volumeLock.
+
+* handles volume hash table updates where volume name to
+ volume ID number changes. The volume name remains
+ constant in the cm_volume_t. if a vos rename is performed,
+ the name of the volume will change and the volume IDs will be
+ updated. Subsequent access to the old volume ID will create a
+ new cm_volume_t with the new name.
+
+* Added a daemon thread operation to query the state of volumes
+ listed as busy or offline. cm_CheckBusyVolumes() calls
+ RXAFS_GetVolumeStatus() for each volume ID that is marked vl_busy
+ or vl_offline. If the volume is now online, the status on the
+ volume is updated. The default period is 600 seconds. This can
+ be configured with the BusyVolumeCheckInterval registry value.
+
+* Added prototype for smb_IoctlPrepareRead() which was missing a
+ return type in the function definition.
+
+* Added volume id lists to the cm_server_t. These lists are
+ allocated in blocks of ~32 IDs. When a cm_PingServer()
+ detects a change in server state, the state of the cm_volume_t
+ is updated.
+
+* Added volID to the cm_serverRef_t object. volID is used
+ to identify the volume for which the object is a referral.
+ cm_FreeServerList() uses the volID to remove the volume
+ from the cm_server_t.
+
+* In cm_Analyze, when VNOVOL or VMOVED are received,
+ call cm_ForceVolumeUpdate() to force a refresh of the volume
+ location data.
+
+* Added cm_VolumeStatusNotification() which is used at the moment
+ to log volume status changes to the trace log. It will also
+ be used as the access point to the File System Filter driver
+ notification engine.
+
+* Added an all cm_scache_t list to cm_data. This replaces the use
+ of the stat cache LRU queue when we need to enumerate all
+ entries. The LRU list order is not static and when using it to
+ enumerate all entries it can result in items being missed or
+ items being processed more than once.
+
+* Modified cm_Analyze(). Instead of reseting the busy or offline
+ state of a volume and forcing a retry of the operation
+ cm_Analyze will defer to the background daemon thread that will
+ update the state once every 600 seconds.
+
+* Added the automatic generation of a Freelance ".root" read-write
+ mountpoint that refers to the root.afs volume of the workstation
+ cellname at the time the mountpoint is created.
+
+
Since 1.5.19
* fix install path of IBM Quick Start Guide when installed by
the Wix installer
projects / packages / o / openafs.git / commitdiff