| commit | 955a857e062642cd3ebe1dc7bb38c0f85d8f8f17 | |
| author | Bryan Schumaker <bjschuma@netapp.com> | |
| Wed, 29 Sep 2010 19:41:49 +0000 (29 15:41 -0400) | ||
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | |
| Thu, 7 Oct 2010 22:48:49 +0000 (7 18:48 -0400) | ||
| tree | f95fc349c245c4a0a3f6f8fcc5bf02f36a756134 | treesnapshot (tar.gz zip) |
| parent | aa510da5bfe1dfe263215fd0e05dac96e738a782 | commitdiff |
NFS: new idmapper
This patch creates a new idmapper system that uses the request-key function to
place a call into userspace to map user and group ids to names. The old
idmapper was single threaded, which prevented more than one request from running
at a single time. This means that a user would have to wait for an upcall to
finish before accessing a cached result.
The upcall result is stored on a keyring of type id_resolver. See the file
Documentation/filesystems/nfs/idmapper.txt for instructions.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
[Trond: fix up the return value of nfs_idmap_lookup_name and clean up code]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This patch creates a new idmapper system that uses the request-key function to
place a call into userspace to map user and group ids to names. The old
idmapper was single threaded, which prevented more than one request from running
at a single time. This means that a user would have to wait for an upcall to
finish before accessing a cached result.
The upcall result is stored on a keyring of type id_resolver. See the file
Documentation/filesystems/nfs/idmapper.txt for instructions.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
[Trond: fix up the return value of nfs_idmap_lookup_name and clean up code]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>