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nfsd4: hash closed stateid's like any other

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Look up closed stateid's in the stateid hash like any other stateid
rather than searching the close lru.

This is simpler, and fixes a bug: currently we handle only the case of a
close that is the last close for a given stateowner, but not the case of
a close for a stateowner that still has active opens on other files.
Thus in a case like:

	open(owner, file1)
	open(owner, file2)
	close(owner, file2)
	close(owner, file2)

the final close won't be recognized as a retransmission.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields 2011-09-16 20:12:38 -04:00
parent d3b313a463
commit f7a4d87207
2 changed files with 56 additions and 49 deletions
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4
fs/nfsd/state.h
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@ -76,7 +76,9 @@ struct nfs4_stid {
#define NFS4_OPEN_STID 1
#define NFS4_LOCK_STID 2
#define NFS4_DELEG_STID 4
char sc_type;
/* For an open stateid kept around *only* to process close replays: */
#define NFS4_CLOSED_STID 8
unsigned char sc_type;
struct list_head sc_hash;
stateid_t sc_stateid;
};