linux-toradex.git/include/linux/exportfs.h, branch v4.6-rc6

staging/lustre: proper support of NFS anonymous dentries

2016-02-26T06:12:26+00:00

NFS can ask to encode dentries that are not connected to the root.
The fix check for parent is NULL and encode a file handle accordingly.

Reviewed-on: http://review.whamcloud.com/8347
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4231
Reviewed-by: Fan Yong 
Reviewed-by: James Simmons 
Reviewed-by: Jian Yu 
Signed-off-by: Dmitry Eremin 
Signed-off-by: Oleg Drokin 
Acked-by: Jeff Layton 
Signed-off-by: Greg Kroah-Hartman

exportfs: add methods for block layout exports

2015-02-05T13:35:17+00:00

Add three methods to allow exporting pnfs block layout volumes:

 - get_uuid: get a filesystem unique signature exposed to clients
 - map_blocks: map and if nessecary allocate blocks for a layout
 - commit_blocks: commit blocks in a layout once the client is done with them

For now we stick the external pnfs block layout interfaces into s_export_op to
avoid mixing them up with the internal interface between the NFS server and
the layout drivers.  Once we've fully internalized the latter interface we
can redecide if these methods should stay in s_export_ops.

Signed-off-by: Christoph Hellwig

fat: restructure export_operations

2013-04-30T01:28:40+00:00

Define two nfs export_operation structures,one for 'stale_rw' mounts and
the other for 'nostale_ro'.  The latter uses i_pos as a basis for encoding
and decoding file handles.

Also, assign i_pos to kstat->ino.  The logic for rebuilding the inode is
added in the subsequent patches.

Signed-off-by: Namjae Jeon 
Signed-off-by: Ravishankar N 
Signed-off-by: Amit Sahrawat 
Acked-by: OGAWA Hirofumi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux

2012-12-20T22:04:11+00:00

Pull nfsd update from Bruce Fields:
 "Included this time:

   - more nfsd containerization work from Stanislav Kinsbursky: we're
     not quite there yet, but should be by 3.9.

   - NFSv4.1 progress: implementation of basic backchannel security
     negotiation and the mandatory BACKCHANNEL_CTL operation.  See

       http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues

     for remaining TODO's

   - Fixes for some bugs that could be triggered by unusual compounds.
     Our xdr code wasn't designed with v4 compounds in mind, and it
     shows.  A more thorough rewrite is still a todo.

   - If you've ever seen "RPC: multiple fragments per record not
     supported" logged while using some sort of odd userland NFS client,
     that should now be fixed.

   - Further work from Jeff Layton on our mechanism for storing
     information about NFSv4 clients across reboots.

   - Further work from Bryan Schumaker on his fault-injection mechanism
     (which allows us to discard selective NFSv4 state, to excercise
     rarely-taken recovery code paths in the client.)

   - The usual mix of miscellaneous bugs and cleanup.

  Thanks to everyone who tested or contributed this cycle."

* 'for-3.8' of git://linux-nfs.org/~bfields/linux: (111 commits)
  nfsd4: don't leave freed stateid hashed
  nfsd4: free_stateid can use the current stateid
  nfsd4: cleanup: replace rq_resused count by rq_next_page pointer
  nfsd: warn on odd reply state in nfsd_vfs_read
  nfsd4: fix oops on unusual readlike compound
  nfsd4: disable zero-copy on non-final read ops
  svcrpc: fix some printks
  NFSD: Correct the size calculation in fault_inject_write
  NFSD: Pass correct buffer size to rpc_ntop
  nfsd: pass proper net to nfsd_destroy() from NFSd kthreads
  nfsd: simplify service shutdown
  nfsd: replace boolean nfsd_up flag by users counter
  nfsd: simplify NFSv4 state init and shutdown
  nfsd: introduce helpers for generic resources init and shutdown
  nfsd: make NFSd service structure allocated per net
  nfsd: make NFSd service boot time per-net
  nfsd: per-net NFSd up flag introduced
  nfsd: move per-net startup code to separated function
  nfsd: pass net to __write_ports() and down
  nfsd: pass net to nfsd_set_nrthreads()
  ...

fs, exportfs: add exportfs_encode_inode_fh() helper

2012-12-18T01:15:27+00:00

We will need this helper in the next patch to provide a file handle for
inotify marks in /proc/pid/fdinfo output.

The patch is rather providing the way to use inodes directly when dentry
is not available (like in case of inotify system).

Signed-off-by: Cyrill Gorcunov 
Acked-by: Pavel Emelyanov 
Cc: Oleg Nesterov 
Cc: Andrey Vagin 
Cc: Al Viro 
Cc: Alexey Dobriyan 
Cc: James Bottomley 
Cc: "Aneesh Kumar K.V" 
Cc: Alexey Dobriyan 
Cc: Matthew Helsley 
Cc: "J. Bruce Fields" 
Cc: "Aneesh Kumar K.V" 
Cc: Tvrtko Ursulin 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

exportfs: add FILEID_INVALID to indicate invalid fid_type

2012-11-08T00:22:30+00:00

This commit adds FILEID_INVALID = 0xff in fid_type to
indicate invalid fid_type

It avoids using magic number 255

Signed-off-by: Namjae Jeon 
Signed-off-by: Vivek Trivedi 
Signed-off-by: J. Bruce Fields

->encode_fh() API change

2012-05-30T03:28:33+00:00

pass inode + parent's inode or NULL instead of dentry + bool saying
whether we want the parent or not.

NOTE: that needs ceph fix folded in.

Signed-off-by: Al Viro

Fix common misspellings

2011-03-31T14:26:23+00:00

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi

vfs: Add name to file handle conversion support

2011-03-15T06:21:37+00:00

The syscall also return mount id which can be used
to lookup file system specific information such as uuid
in /proc//mountinfo

Signed-off-by: Aneesh Kumar K.V 
Signed-off-by: Al Viro

exportfs: Return the minimum required handle size

2011-03-14T13:15:28+00:00

The exportfs encode handle function should return the minimum required
handle size. This helps user to find out the handle size by passing 0
handle size in the first step and then redoing to the call again with
the returned handle size value.

Acked-by: Serge Hallyn 
Signed-off-by: Aneesh Kumar K.V 
Signed-off-by: Al Viro