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Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Change-Id: I69297d91ab8c857204e1f78cafb210b9a05f3b77
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri May 2 03:41:31 CEST 2014 on sn-devel-104
DMAPI session is precious resource maintained at kernel level. We open one of them and use across multiple smbd daemons
but once last of them exits, DMAPI session needs to be destroyed. There are some HSM implementations which fail to
shutdown when opened DMAPI sessions left. Ensure we shutdown our session when it is really not needed anymore.
This is what recommended by DMAPI specification anyway.
(This used to be commit a0cefd44009d414fa00ec6e08c70d21b74acdbcb)
Support cases when existing DMAPI session is stale. In this case we are creating another one.
The code differs from 3-0_ctdb branch in that we fail when it is not possible to create more
sessions and pretend that file is offline. This allows to escape endless loop in vfs_tsmsm.c.
(This used to be commit 5efb57d904e25e68b09a567e260292439ad9c095)
Offline files support and remote storage are for allowing communication with
backup and archiving tools that mark files moved to a tape library as offline.
We translate this info into corresponding CIFS offline file attribute and
mark an exported volume as remote storage.
Async I/O force is to allow selective redirection of I/O operations to asynchronous
processing in case it is viable at VFS module discretion. It is needed for
proper handling of offline files as performing regular I/O on offline file will
block smbd.
Signed-off-by: Alexander Bokovoy <ab@samba.org>(This used to be commit 875208724e39564fe81385dfe36e6c963e79e101)
bugs in various places whilst doing this (places that assumed
BOOL == int). I also need to fix the Samba4 pidl generation
(next checkin).
Jeremy.
(This used to be commit f35a266b3cbb3e5fa6a86be60f34fe340a3ca71f)
a more specific probe to try and eliminate old, incompatible
DMAPI implementations provided by IRIX 6.4 and AIX 4.3.
(This used to be commit aafd4db457ce8a60c628d54a3ace3b97c8885dca)
- add DMAPI/XDSM support for AIX
- find JFS DMAPI libs on Linux when only they are available
Volker
(This used to be commit b6b72f8c6a03001ae75457c9e7a78e189bea5a3f)