linux-toradex.git/include/linux/nfs4.h, branch v6.7-rc8

NFSD: Copy FATTR4 bit number definitions from RFCs

2023-10-16T16:44:26+00:00

I'd like to convert nfsd4_encode_fattr() to rotate through the
attrmask using for_each_bit() instead of explicitly testing the
bitmask for each bit value. This means I need the bit numbers, as
defined in the specs, instead of our internal bitmask constants.

As a clean up, use the new spec-derived values to define the WORD#
bitmask constants.

Reviewed-by: Jeff Layton 
Signed-off-by: Chuck Lever

nfs: fix the typo of rfc number about xattr in NFSv4

2023-10-16T16:44:10+00:00

Signed-off-by: Kinglong Mee 
Signed-off-by: Chuck Lever

NFSD: add delegation reaper to react to low memory condition

2022-12-10T16:01:12+00:00

The delegation reaper is called by nfsd memory shrinker's on
the 'count' callback. It scans the client list and sends the
courtesy CB_RECALL_ANY to the clients that hold delegations.

To avoid flooding the clients with CB_RECALL_ANY requests, the
delegation reaper sends only one CB_RECALL_ANY request to each
client per 5 seconds.

Signed-off-by: Dai Ngo 
[ cel: moved definition of RCA4_TYPE_MASK_RDATA_DLG ]
Signed-off-by: Chuck Lever

NFSv4: Specify the type of ACL to cache

2022-05-17T17:32:46+00:00

When caching a NFSv4 ACL, we want to specify whether we are caching an
NFSv4.0 type acl, the NFSv4.1 dacl or the NFSv4.1 sacl.

Signed-off-by: Trond Myklebust 
Signed-off-by: Anna Schumaker

NFS: Move NFS protocol display macros to global header

2021-11-02T16:31:23+00:00

Refactor: surface useful show_ macros so they can be shared between
the client and server trace code.

Additional clean up:
- Housekeeping: ensure the correct #include files are pulled in
  and add proper TRACE_DEFINE_ENUM where they are missing
- Use a consistent naming scheme for the helpers
- Store values to be displayed symbolically as unsigned long, as
  that is the type that the __print_yada() functions take

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

NFSv4: Add support for the NFSv4.2 "change_attr_type" attribute

2021-04-13T14:04:05+00:00

The change_attr_type allows the server to provide a description of how
the change attribute will behave. This again will allow the client to
optimise its behaviour w.r.t. attribute revalidation.

Signed-off-by: Trond Myklebust

Revert "nfsd4: support change_attr_type attribute"

2020-12-09T14:39:38+00:00

This reverts commit a85857633b04d57f4524cca0a2bfaf87b2543f9f.

We're still factoring ctime into our change attribute even in the
IS_I_VERSION case.  If someone sets the system time backwards, a client
could see the change attribute go backwards.  Maybe we can just say
"well, don't do that", but there's some question whether that's good
enough, or whether we need a better guarantee.

Also, the client still isn't actually using the attribute.

While we're still figuring this out, let's just stop returning this
attribute.

Signed-off-by: J. Bruce Fields 
Signed-off-by: Chuck Lever

NFS: Add READ_PLUS data segment support

2020-10-07T18:28:39+00:00

This patch adds client support for decoding a single NFS4_CONTENT_DATA
segment returned by the server. This is the simplest implementation
possible, since it does not account for any hole segments in the reply.

Signed-off-by: Anna Schumaker

Merge tag 'nfs-for-5.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2020-08-15T15:26:55+00:00

Pull NFS client updates from Trond Myklebust:
 "Stable fixes:
   - pNFS: Don't return layout segments that are being used for I/O
   - pNFS: Don't move layout segments off the active list when being used for I/O

  Features:
   - NFS: Add support for user xattrs through the NFSv4.2 protocol
   - NFS: Allow applications to speed up readdir+statx() using AT_STATX_DONT_SYNC
   - NFSv4.0 allow nconnect for v4.0

  Bugfixes and cleanups:
   - nfs: ensure correct writeback errors are returned on close()
   - nfs: nfs_file_write() should check for writeback errors
   - nfs: Fix getxattr kernel panic and memory overflow
   - NFS: Fix the pNFS/flexfiles mirrored read failover code
   - SUNRPC: dont update timeout value on connection reset
   - freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS
   - sunrpc: destroy rpc_inode_cachep after unregister_filesystem"

* tag 'nfs-for-5.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (32 commits)
  NFS: Fix flexfiles read failover
  fs: nfs: delete repeated words in comments
  rpc_pipefs: convert comma to semicolon
  nfs: Fix getxattr kernel panic and memory overflow
  NFS: Don't return layout segments that are in use
  NFS: Don't move layouts to plh_return_segs list while in use
  NFS: Add layout segment info to pnfs read/write/commit tracepoints
  NFS: Add tracepoints for layouterror and layoutstats.
  NFS: Report the stateid + status in trace_nfs4_layoutreturn_on_close()
  SUNRPC dont update timeout value on connection reset
  nfs: nfs_file_write() should check for writeback errors
  nfs: ensure correct writeback errors are returned on close()
  NFSv4.2: xattr cache: get rid of cache discard work queue
  NFS: remove redundant initialization of variable result
  NFSv4.0 allow nconnect for v4.0
  freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS
  sunrpc: destroy rpc_inode_cachep after unregister_filesystem
  NFSv4.2: add client side xattr caching.
  NFSv4.2: hook in the user extended attribute handlers
  NFSv4.2: add the extended attribute proc functions.
  ...

nfs: add client side only definitions for user xattrs

2020-07-13T21:52:45+00:00

Add client-side only definitions for user extended
attributes (RFC8276). These are the access bits
as used by the client code, and the CLNT procedure
number definition.

Signed-off-by: Frank van der Linden 
Signed-off-by: Trond Myklebust