xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nfsd: Add a mutex to protect the NFSv4.0 open owner replay cache

Browse Source 
We don't want to rely on the client_mutex for protection in the case of
NFSv4 open owners. Instead, we add a mutex that will only be taken for
NFSv4.0 state mutating operations, and that will be released once the
entire compound is done.

Also, ensure that nfsd4_cstate_assign_replay/nfsd4_cstate_clear_replay
take a reference to the stateowner when they are using it for NFSv4.0
open and lock replay caching.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Jeff Layton
2014-07-29 21:34:27 -04:00
committed by J. Bruce Fields
parent 6b180f0b57
commit 58fb12e6a4
5 changed files with 41 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/nfsd/nfs4xdr.c
View File

@@ -3925,8 +3925,6 @@ status:
*
* XDR note: do not encode rp->rp_buflen: the buffer contains the
* previously sent already encoded operation.
*
* called with nfs4_lock_state() held
*/
void
nfsd4_encode_replay(struct xdr_stream *xdr, struct nfsd4_op *op)