linux.git/fs/nfs/cache_lib.c, branch v4.12

sunrpc/nfs: cleanup procfs/pipefs entry in cache_detail

2017-02-08T22:02:45+00:00

Record flush/channel/content entries is useless, remove them.

Signed-off-by: Kinglong Mee 
Signed-off-by: Anna Schumaker

NFS: cache_lib: use complete() instead of complete_all()

2016-09-23T13:40:12+00:00

There is only one waiter for the completion, therefore there
is no need to use complete_all(). Let's make that clear by
using complete() instead of complete_all().

The generic caching code from sunrpc is calling revisit() only once.

The usage pattern of the completion is:

waiter context                          waker context

do_cache_lookup_wait()
  nfs_cache_defer_req_alloc()
    init_completion()
  do_cache_lookup()
  nfs_cache_wait_for_upcall()
    wait_for_completion_timeout()

					nfs_dns_cache_revisit()
					  complete()

  nfs_cache_defer_req_put()

Signed-off-by: Daniel Wagner 
Signed-off-by: Anna Schumaker

NFS: simplify and clean cache library

2013-02-15T15:43:36+00:00

This is a cleanup patch.
Such helpers like nfs_cache_init() and nfs_cache_destroy() are redundant,
because they are just a wrappers around sunrpc_init_cache_detail() and
sunrpc_destroy_cache_detail() respectively.
So let's remove them completely and move corresponding logic to
nfs_cache_register_net() and nfs_cache_unregister_net() respectively (since
they are called together anyway).

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: J. Bruce Fields

NFSv4: Get rid of unnecessary BUG_ON()s

2012-11-04T19:43:39+00:00

Signed-off-by: Trond Myklebust

NFS: remove RPC PipeFS mount point references from NFS cache routines

2012-01-31T23:20:26+00:00

This is a cleanup patch. We don't need this reference anymore, because DNS
resolver cache now creates it's dentries in per-net operations and on PipeFS
mount/umount notification.
Note that nfs_cache_register_net() now returns 0 instead of -ENOENT in case of
PiepFS superblock absence. This is ok, Dns resolver cache will be regestered on
PipeFS mount event.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

NFS: DNS resolver PipeFS notifier introduced

2012-01-31T23:20:26+00:00

This patch subscribes DNS resolver caches to RPC pipefs notifications. Notifier
is registering on NFS module load. This notifier callback is responsible for
creation/destruction of PipeFS DNS resolver cache directory.
Note that no locking required in notifier callback because PipeFS superblock
pointer is passed as an argument from it's creation or destruction routine and
thus we can be sure about it's validity.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

NFS: handle NFS caches dentries by network namespace aware routines

2012-01-31T23:20:26+00:00

This patch makes NFS caches PipeFS dentries allocated and destroyed in network
namespace context by PipeFS network namespace aware routines.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

NFS: split cache creation and PipeFS registration

2012-01-31T23:20:26+00:00

This precursor patch splits NFS cache creation and PipeFS registartion.
It's required for latter split of NFS DNS resolver cache creation per network
namespace context and PipeFS registration/unregistration on MOUNT/UMOUNT
events.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

SUNRPC: split cache creation and PipeFS registration

2012-01-31T23:20:26+00:00

This precursor patch splits SUNRPC cache creation and PipeFS registartion.
It's required for latter split of NFS DNS resolver cache creation per network
namespace context and PipeFS registration/unregistration on MOUNT/UMOUNT
events.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

switch vfs_path_lookup() to struct path

2011-07-20T05:44:14+00:00

Signed-off-by: Al Viro