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Asks gpfs as long as a file is offline. Once it was reported online once,
we'll not ask anymore. This assumes that while we have a file open it
won't be migrated away. This might not *always* be true, but probably
close enough. And as long as we don't have a proper notification mechanism
and as long as polling is too expensive, this seems like a good strategy.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Sat Sep 5 01:50:09 CEST 2015 on sn-devel-104
-typedef struct _SMB4ACE_T {char dontuse;} SMB4ACE_T;
+struct SMB4ACE_T;
Same as for ACL_T
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
The relevant change:
-typedef struct _SMB4ACL_T {char dontuse;} SMB4ACL_T;
+struct SMB4ACL_T;
We can use anonymous structs to prevent direct use. This patch will
trigger a set of simplifications in the next patches
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
GPFS 3.5 is now the oldest support version. Cleanup the ACL code by
using the defines and structs from the 3.5 header file.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
The label was added in 5e65ae14dd as part
of fix for bug 11244, but was wrongly placed behind END_PROFILE.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11244
Signed-off-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Thu May 7 19:22:00 CEST 2015 on sn-devel-104
Streams implementing VFS modules may implement streams in a way that the
fsp will have the basefile open in the fsp fd, so lacking a distinct fd
for the stream, kernel_flock will apply on the basefile which is
wrong. The actual check is deffered to the VFS module implementing the
kernel_flock call.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11243
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Fall back to POSIX ACLs in this case.
Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Apr 28 13:19:25 CEST 2015 on sn-devel-104
Call get_gpfs_quota directly from vfs_gpfs_disk_free_quota to get user
and group quotas.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Querying the fileset id requires additional GPFS API calls and also
opening a directory, which might have other side effects. A better
option would be configuring the file system with --filesetdf, then the
fileset quota is automatically reflected in the free space information
reported from gpfs.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
get_gpfs_fset_id already emits more detailed warnings, there is no need
to print an additional warning in the calling function.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: David Disseldorp <ddiss@samba.org>
The Linux fallocate syscall offers a mode parameter which can take the
following flags:
FALLOC_FL_KEEP_SIZE
FALLOC_FL_PUNCH_HOLE (since 2.6.38)
FALLOC_FL_COLLAPSE_RANGE (since 3.15)
FALLOC_FL_ZERO_RANGE (since 3.14)
The flags are not exclusive, e.g. FALLOC_FL_PUNCH_HOLE must be specified
alongside FALLOC_FL_KEEP_SIZE.
Samba currently takes a vfs_fallocate_mode enum parameter for the VFS
fallocate hook, taking either an EXTEND_SIZE or KEEP_SIZE value. This
commit changes the fallocate hook such that it accepts a uint32_t flags
parameter, in preparation for PUNCH_HOLE and ZERO_RANGE support.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The code in gpfs.c and vfs_gpfs.h now only wraps the gpfs library.
Rename the files to gpfswrap to make it clear that this is the only
purpose of that file.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
Update file headers to reflect the new code organization and reformat
for consistency.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
Merge the code for initializing the function pointers in one function.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
gpfs_gpl.h no longer exists, everything from that header file has been
merged to gpfs.h. gpfs_fcntl.h implicitly includes gpfs.h. Simplify the
code by only looking for gpfs_fcntl.h and including that file.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Böhme <slow@samba.org>
The small_query parameter for SMB_VFS_DISK_FREE() was, prior to the
previous commit, used to obtain 16-bit wide free-space information for
the deprecated dskattr SMB_COM_QUERY_INFORMATION_DISK command.
With the dskattr handler now performing the 16-bit collapse directly,
the small_query parameter can be removed from the entire code path.
Signed-off-by: David Disseldorp <ddiss@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Feb 17 05:37:20 CET 2015 on sn-devel-104
This fails with -Werror=declaration-after-statement
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Sep 16 01:55:57 CEST 2014 on sn-devel-104
Now that the vfs_private cache is never read in vfs_gpfs, there is
no need any more to write it.
With this change, vfs_gpfs does not use vfs_private any more.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
This was used as a cache for offline-info in the stat buffer.
But as the implementation of gpfs_is_offline() showed, this cache
does not always carry valid information when the stat itself is valid
(since at least one call goes to fstatat() directly, circumventing
the vfs).
So the correct thing is to always call SMB_VFS_IS_OFFLINE()
when checking whether a file is offline. For the pread and pwrite
calls, we need to call IS_OFFLINE before the actual read
and check afterwards if the file was offline before (as a basis
whether to send notifications).
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
This reverts commit 8f44883db94314c007c197927a9dd0809076754d.
The next commits will be removing all access to stat_ex.vfs_private from
vfs_gpfs. This revert of the last addition is a preparation.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
In is_offline(), check whether the winAttrs are filled with bits
outside 0xFFFF and log it prominently: Since GPFS only
fills 0xFFFF, this could be due to an uninitialized buffer
(or another vfs module filling vfs_private? ...).
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
There is a problem of flapping offline due to uninitialized
stat buffers. Due to a optimization in vfswrap_readdir which
directly calling fastatat (i.e. not through vfs), marking the
stat buffer valid, there is nothing this module can do about
it and hence can not currently not rely on the vaildity of
the stat buffer.
By always calling out to GPFS even when the stat buffer is
flagged valid, we can always return correct offline information,
thereby sacrificing the readdir optimization.
Pair-Programmed-With: Volker Lendecke <vl@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
This may (e.g.) have lead to some occurrences of flapping offline bits.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Signed-off-by: Ralph Wuerthner <ralph.wuerthner@de.ibm.com>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu May 15 02:19:41 CEST 2014 on sn-devel-104
Remove an unused variable and use discard_const_p.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Apr 18 22:25:25 CEST 2014 on sn-devel-104
Use literals to allow a compile and execution on gpfs 3.4.
Signed-off-by: Alexander Werth <alexander.werth@de.ibm.com>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
When this option is set to no, an attempt to open an offline file will
be rejected with access denied. This helps preventing recall storms
triggered by careless applications like Finder and Explorer.
Signed-off-by: Christian Ambach <ambi@samba.org>
Reviewed-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
