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This extends the file_id struct to add an additional generic uint64_t
field: extid. For backwards compatibility with dev/inodes stored in
xattr_tdbs and acl_tdbs, the ext id is ignored for these databases.
This patch should cause no functional change on systems that don't use
SMB_VFS_FILE_ID_CREATE to set the extid.
Existing code that uses the smb_share_mode library will need to be
updated to be compatibile with the new extid.
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Since file_id_create_dev is incompatible with the concept of file_ids,
it is now static and in the one file that needs it.
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This patch adds 3 new VFS OPs for Windows byte range locking: BRL_LOCK_WINDOWS,
BRL_UNLOCK_WINDOWS and BRL_CANCEL_WINDOWS. Specifically:
* I renamed brl_lock_windows, brl_unlock_windows and brl_lock_cancel to
*_default as the default implementations of the VFS ops.
* The blocking_lock_record (BLR) is now passed into the brl_lock_windows and
brl_cancel_windows paths. The Onefs implementation uses it - future
implementations may find it useful too.
* Created brl_lock_cancel to do what brl_lock/brl_unlock do: set up a
lock_struct and call either the Posix or Windows lock function. These happen
to be the same for the default implementation.
* Added helper functions: increment_current_lock_count() and
decrement_current_lock_count().
* Minor spelling correction in brl_timeout_fn: brl -> blr.
* Changed blocking_lock_cancel() to return the BLR that it has cancelled. This
allows us to assert its the lock that we wanted to cancel. If this assert ever
fires, this path will need to take in the BLR to cancel, rather than choosing
on its own.
* Adds a small helper function: find_blocking_lock_record_by_id(). Used by the
OneFS implementation, but could be useful for others.
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OneFS provides the bulk directory enumeration syscall readdirplus(). This
syscall has the same semantics as the NFSv3 READDIRPLUS command, returning
a batch of directory entries with prefetched stat information via one
syscall.
This commit wraps the readdirplus() call in the existing POSIX
readdir/seekdir VFS interface. By default a batch of 128 directory entries
are optimistically read from the kernel into a global cache, and fed to
iterative calls of VFS_OP_READDIR.
The global buffers could be avoided in the future by hanging connection
specific buffers off the conn struct.
Added new parameter "onefs:use readdirplus" which toggles usage of this
code on or off.
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search requests.
By default this VFS call is a NOOP, but the onefs vfs module takes advantage
of it to initialize direntry search caches at the beginning of each
TRANS2_FIND_FIRST, TRANS2_FIND_NEXT, SMBffirst, SMBsearch, and SMBunique
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* this allows VFS implementations that prefetch stat information on
readdir to return it through one VFS call
* backwards compatibility is maintained by passing in NULL
* if the system readdir doesn't return stat info, the stat struct is
set to invalid
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This allows module implementors to customize what allocation size is
returned to the client.
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1) Add in smb_file_time struct to clarify code and make room for createtime.
2) Get and set create time from SMB messages.
3) Fixup existing VFS modules + examples Some OS'es allow for the
setting of the birthtime through kernel interfaces. This value is
generically used for Windows createtime, but is not settable in the
code today.
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reported by and based on a patch by Yasuma Takeda
<yasuma@osstech.co.jp>.
Jeremy.
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This is done to help file systems that can tell us about the real upper/lower
case combination given a case-insensitive file name. The sample I will soon
push is the gpfs module (recent gpfs has a get_real_filename function), others
might have a similar function to help alleviate the 1million files in a single
directory problem.
Jeremy, please comment!
Thanks,
Volker
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This replaces the is_dos_path bool with a more future-proof argument.
The next step is to plumb INTERNAL_OPEN_ONLY through this flag instead
of overridding the oplock_request.
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Now unix paths can be differentiated from windows paths so the
underlying create_file implementations can convert paths correctly.
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Modify all callers of create_file to go through SMB_VFS_CREATE_FILE
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in fset_nt_acl().
Need to watch the build farm to make sure I haven't broken the AIX or Solaris ACL modules.
Jeremy.
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function more like POSIX and allow NULL arg. Help vfs developers.
Jeremy.
(This used to be commit 613f2849ad2dc25fe2e5f8a76d69797b5b302bb9)
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this can only be done via fset_nt_acl() using an open
file/directory handle. I'd like to do the same with
get_nt_acl() but am concerned about efficiency
problems with "hide unreadable/hide unwritable" when
doing a directory listing (this would mean opening
every file in the dir on list).
Moving closer to rationalizing the ACL model and
maybe moving the POSIX calls into a posix_acl VFS
module rather than having them as first class citizens
of the VFS.
Jeremy.
(This used to be commit f487f742cb903a06fbf2be006ddc9ce9063339ed)
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Now all those redundant fd's have vanished from the VFS API.
Michael
(This used to be commit 14294535512a7f191c5008e622b6708e417854ae)
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The errno is handed up through the VFS layer to the callers.
Michael
(This used to be commit d928e6648d61cf2d3c1b77db440efb835b729a84)
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This hides the pending close fds from the outside. Call order
of SMB_VFS_CLOSE is reversed. Originally, it was:
fd_close -> fd_close_posix -> SMB_VFS_CLOSE -> close
And now it is:
fd_close -> SMB_VFS_CLOSE -> fd_close_posix -> close
This is in preparation of removing the fd parameter
from the SMB_VFS_CLOSE function. But it is also the right
place for the pending close calls anyways.
Michael
(This used to be commit 3cf56b124a2886c6260455bba4bf77d08e9a4f77)
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Bug 5279 -- Thanks to Max Matveev
(This used to be commit 71641f04d4e9a41775e898f2e4ac3c8792783cd3)
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(This used to be commit f12ac1ecedd6634d8ccc54d8fce8382514e3322f)
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(This used to be commit 5b05e09daf18eaea5e86dfd607c8070228f7571b)
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It turns out that this is a necessary operation, separate from statvfs. statvfs
can fail during tcon, so conn->fs_capabilities would never see that we support
streams on a particular share.
James, can you check that I got the darwin variant right? Thanks!
(This used to be commit 3ad798d803b3b023533bb48e6993885f22b96095)
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Based on jpeach's work, modified the streaminfo prototype
Make use of it in trans2.c together with marshall_stream_info()
(This used to be commit c34d729c7c0600a8f11bf7e489a634a4e37fe88e)
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handle FS capabilities.
As discussed with Volker, it is better to calculate FS capabilities at
connection time. We already do this with help of VFS statvfs() call
which allows to fill-in system-specific attributes including FS
capabilities. So just re-use it if you want to represent additional
capabilities in your modules. The only caution is that you need to
call underlying statvfs() call to actually get system-specific
capabilities (and other fields) added. Then add module-specific ones.
(This used to be commit e342ca0d931f9a5c8ec9e472dc9c63f1fe012b3a)
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result for a file.
This makes sense as upper levels are only taking returned result of 0
(no error) into consideration when deciding whether to mark file
offline/online as returned from is_offline.
That means that we simply can move the decision down to VFS module and
clean up upper levels so that they always see only file status. If there
is an error when trying to identify file status, then VFS module could
decide what to return (offline or online) by itself -- after all, it
ought to have system-specific knowledge anyway.
(This used to be commit 75cc08661473cce62756fa062071bb2bc1fb39ec)
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NEEDS MORE TESTING !
Jeremy.
(This used to be commit bcc94aed6f03211866aa85753a90fece87846ba9)
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operations to VFS
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)
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Michael
(This used to be commit 3958abffaf2866c69ad9e13ec345364fde5c78bb)
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Michael
(This used to be commit a52cfb7d777157c93c9dc26c67f457be592dd537)
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Michael
(This used to be commit c8ae7d095a2a6a7eac920a68ca7244e3a423e1b1)
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Michael
(This used to be commit a8fc2ddad8d5f7c6c00cb36c74a32a02d69d1d04)
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Michael
(This used to be commit 3c997ae0002d4c50e8899600c17ddf74ac61f6f0)
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Michael
(This used to be commit 0bd2643463a9160c8a1c7e1c2f8cca7b89060e09)
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Michael
(This used to be commit bfc3b5a27f707d3e4b8d5d66192891e22365fbb3)
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Michael
(This used to be commit 167649b3b8bc293f8434ffc9fb5f80463e4e75be)
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Michael
(This used to be commit 2cb739a82dc6bb194d60718cc74b26ee7c1c46a7)
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Michael
(This used to be commit 9296e93588c0e795cae770765050247ac1474a74)
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Michael
(This used to be commit 7b201c177b3668f54751ba17d6a0b53ed913e7f7)
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Michael
(This used to be commit 42663e8736e1a3dfb57e0aafdcbf5fec880da779)
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