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authorJ. Bruce Fields <bfields@fieldses.org>2006-02-07 15:58:32 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-07 19:12:31 -0500
commitcbd0d51a3318583fabf03bccc7a987e158482361 (patch)
tree62a7d1d2bb6cd9f11536c2b9873a46b81fcac2a8 /fs/nfsd/nfs4proc.c
parent0df420d8b6c718d9a5e37531c3a9a6804493e9f4 (diff)
[PATCH] knfsd: fix nfs4_open lock leak
I just noticed that my patch "don't create on open that fails due to ERR_GRACE" (recently commited as fb553c0f17444e090db951b96df4d2d71b4f4b6b) had an obvious problem that causes a deadlock on reboot recovery. Sending in this now since it seems like a clear 2.6.16 candidate.--b. We're returning with a lock held in some error cases. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
-rw-r--r--fs/nfsd/nfs4proc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index a00fe8686293..6d63f1d9e5f5 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -195,10 +195,12 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
195 195
196 /* Openowner is now set, so sequence id will get bumped. Now we need 196 /* Openowner is now set, so sequence id will get bumped. Now we need
197 * these checks before we do any creates: */ 197 * these checks before we do any creates: */
198 status = nfserr_grace;
198 if (nfs4_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS) 199 if (nfs4_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
199 return nfserr_grace; 200 goto out;
201 status = nfserr_no_grace;
200 if (!nfs4_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS) 202 if (!nfs4_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
201 return nfserr_no_grace; 203 goto out;
202 204
203 switch (open->op_claim_type) { 205 switch (open->op_claim_type) {
204 case NFS4_OPEN_CLAIM_DELEGATE_CUR: 206 case NFS4_OPEN_CLAIM_DELEGATE_CUR: