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NFSv4: Fix a potential CLOSE race

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Once the state_owner and lock_owner semaphores get removed, it will be
 possible for other OPEN requests to reopen the same file if they have
 lower sequence ids than our CLOSE call.
 This patch ensures that we recheck the file state once
 nfs_wait_on_sequence() has completed waiting.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2005-10-18 14:20:12 -07:00
commit 9512135df1
4 changed files with 87 additions and 45 deletions
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2
include/linux/nfs_xdr.h
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@ -149,7 +149,7 @@ struct nfs_open_confirmres {
*/
struct nfs_closeargs {
struct nfs_fh * fh;
nfs4_stateid stateid;
nfs4_stateid * stateid;
struct nfs_seqid * seqid;
int open_flags;
};