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authorJ. Bruce Fields <bfields@citi.umich.edu>2006-01-18 17:43:36 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-18 19:20:26 -0800
commitfb553c0f17444e090db951b96df4d2d71b4f4b6b (patch)
tree4eb83eab183f5dd8786aef63768a15fca1155fa6 /fs/nfsd/nfs4proc.c
parent0f442aa299bb47046db4077d9c122a1b539311ce (diff)
downloadop-kernel-dev-fb553c0f17444e090db951b96df4d2d71b4f4b6b.zip
op-kernel-dev-fb553c0f17444e090db951b96df4d2d71b4f4b6b.tar.gz
[PATCH] nfsd4: don't create on open that fails due to ERR_GRACE
In an earlier patch (commit b648330a1d741d5df8a5076b2a0a2519c69c8f41) I noted that a too-early grace-period check was preventing us from bumping the sequence id on open. Unfortunately in that patch I stupidly moved the grace-period check back too far, so now an open for create can succesfully create the file while still returning ERR_GRACE. The correct place for that check is after we've set the open_owner and handled any replays, but before we actually start mucking with the filesystem. Thanks to Avishay Traeger for reporting the bug. 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.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 89028f2..b3f169f 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -192,6 +192,14 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
}
if (status)
goto out;
+
+ /* Openowner is now set, so sequence id will get bumped. Now we need
+ * these checks before we do any creates: */
+ if (nfs4_in_grace() && open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
+ return nfserr_grace;
+ if (!nfs4_in_grace() && open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS)
+ return nfserr_no_grace;
+
switch (open->op_claim_type) {
case NFS4_OPEN_CLAIM_DELEGATE_CUR:
status = nfserr_inval;
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