linux.git/fs/nfs, branch v5.12

nfs: we don't support removing system.nfs4_acl

2021-03-11T18:17:42+00:00

The NFSv4 protocol doesn't have any notion of reomoving an attribute, so
removexattr(path,"system.nfs4_acl") doesn't make sense.

There's no documented return value.  Arguably it could be EOPNOTSUPP but
I'm a little worried an application might take that to mean that we
don't support ACLs or xattrs.  How about EINVAL?

Signed-off-by: J. Bruce Fields 
Signed-off-by: Anna Schumaker

NFSv4.2: fix return value of _nfs4_get_security_label()

2021-03-09T18:30:39+00:00

An xattr 'get' handler is expected to return the length of the value on
success, yet _nfs4_get_security_label() (and consequently also
nfs4_xattr_get_nfs4_label(), which is used as an xattr handler) returns
just 0 on success.

Fix this by returning label.len instead, which contains the length of
the result.

Fixes: aa9c2669626c ("NFS: Client implementation of Labeled-NFS")
Signed-off-by: Ondrej Mosnacek 
Reviewed-by: James Morris 
Reviewed-by: Paul Moore 
Signed-off-by: Anna Schumaker

NFS: Fix open coded versions of nfs_set_cache_invalid() in NFSv4

2021-03-08T21:32:11+00:00

nfs_set_cache_invalid() has code to handle delegations, and other
optimisations, so let's use it when appropriate.

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

NFS: Fix open coded versions of nfs_set_cache_invalid()

2021-03-08T21:13:55+00:00

nfs_set_cache_invalid() has code to handle delegations, and other
optimisations, so let's use it when appropriate.

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

NFS: Clean up function nfs_mark_dir_for_revalidate()

2021-03-08T21:01:02+00:00

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

NFS: Don't gratuitously clear the inode cache when lookup failed

2021-03-08T20:57:17+00:00

The fact that the lookup revalidation failed, does not mean that the
inode contents have changed.

Fixes: 5ceb9d7fdaaf ("NFS: Refactor nfs_lookup_revalidate()")
Signed-off-by: Trond Myklebust 
Signed-off-by: Anna Schumaker

NFS: Don't revalidate the directory permissions on a lookup failure

2021-03-08T20:48:02+00:00

There should be no reason to expect the directory permissions to change
just because the directory contents changed or a negative lookup timed
out. So let's avoid doing a full call to nfs_mark_for_revalidate() in
that case.
Furthermore, if this is a negative dentry, and we haven't actually done
a new lookup, then we have no reason yet to believe the directory has
changed at all. So let's remove the gratuitous directory inode
invalidation altogether when called from
nfs_lookup_revalidate_negative().

Reported-by: Geert Jansen 
Fixes: 5ceb9d7fdaaf ("NFS: Refactor nfs_lookup_revalidate()")
Signed-off-by: Trond Myklebust 
Signed-off-by: Anna Schumaker

NFS: Correct size calculation for create reply length

2021-03-08T18:40:12+00:00

CREATE requests return a post_op_fh3, rather than nfs_fh3. The
post_op_fh3 includes an extra word to indicate 'handle_follows'.

Without that additional word, create fails when full 64-byte
filehandles are in use.

Add NFS3_post_op_fh_sz, and correct the size calculation for
NFS3_createres_sz.

Signed-off-by: Frank Sorenson 
Signed-off-by: Anna Schumaker

nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default

2021-03-08T16:47:47+00:00

This follows what was done in 8c2fabc6542d9d0f8b16bd1045c2eda59bdcde13.
With the default being m, it's impossible to build the module into the
kernel.

Signed-off-by: Timo Rothenpieler 
Signed-off-by: Anna Schumaker

Merge tag 'block-5.12-2021-02-27' of git://git.kernel.dk/linux-block

2021-02-28T19:23:38+00:00

Pull more block updates from Jens Axboe:
 "A few stragglers (and one due to me missing it originally), and fixes
  for changes in this merge window mostly. In particular:

   - blktrace cleanups (Chaitanya, Greg)

   - Kill dead blk_pm_* functions (Bart)

   - Fixes for the bio alloc changes (Christoph)

   - Fix for the partition changes (Christoph, Ming)

   - Fix for turning off iopoll with polled IO inflight (Jeffle)

   - nbd disconnect fix (Josef)

   - loop fsync error fix (Mauricio)

   - kyber update depth fix (Yang)

   - max_sectors alignment fix (Mikulas)

   - Add bio_max_segs helper (Matthew)"

* tag 'block-5.12-2021-02-27' of git://git.kernel.dk/linux-block: (21 commits)
  block: Add bio_max_segs
  blktrace: fix documentation for blk_fill_rw()
  block: memory allocations in bounce_clone_bio must not fail
  block: remove the gfp_mask argument to bounce_clone_bio
  block: fix bounce_clone_bio for passthrough bios
  block-crypto-fallback: use a bio_set for splitting bios
  block: fix logging on capacity change
  blk-settings: align max_sectors on "logical_block_size" boundary
  block: reopen the device in blkdev_reread_part
  block: don't skip empty device in in disk_uevent
  blktrace: remove debugfs file dentries from struct blk_trace
  nbd: handle device refs for DESTROY_ON_DISCONNECT properly
  kyber: introduce kyber_depth_updated()
  loop: fix I/O error on fsync() in detached loop devices
  block: fix potential IO hang when turning off io_poll
  block: get rid of the trace rq insert wrapper
  blktrace: fix blk_rq_merge documentation
  blktrace: fix blk_rq_issue documentation
  blktrace: add blk_fill_rwbs documentation comment
  block: remove superfluous param in blk_fill_rwbs()
  ...