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| author | jhb <jhb@FreeBSD.org> | 2012-01-25 20:05:58 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2012-01-25 20:05:58 +0000 |
| commit | 768a468c15a95c443b29381081ac318debea4846 (patch) | |
| tree | 5f8bcbc509dcfba24c232996c7826a9b95d20dca /sys/nfsclient/nfsmount.h | |
| parent | ee48ed5fd372f596d4901253bcca015ab3c75fcf (diff) | |
| download | FreeBSD-src-768a468c15a95c443b29381081ac318debea4846.zip FreeBSD-src-768a468c15a95c443b29381081ac318debea4846.tar.gz | |
Add a timeout on positive name cache entries in the NFS client. That is,
we will only trust a positive name cache entry for a specified amount of
time before falling back to a LOOKUP RPC, even if the ctime for the file
handle matches the cached copy in the name cache entry. The timeout is
configured via a new 'nametimeo' mount option and defaults to 60 seconds.
It may be set to zero to disable positive name caching entirely.
Reviewed by: rmacklem
MFC after: 1 week
Diffstat (limited to 'sys/nfsclient/nfsmount.h')
| -rw-r--r-- | sys/nfsclient/nfsmount.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/nfsclient/nfsmount.h b/sys/nfsclient/nfsmount.h index 6b84bdd..77171a1 100644 --- a/sys/nfsclient/nfsmount.h +++ b/sys/nfsclient/nfsmount.h @@ -83,6 +83,7 @@ struct nfsmount { struct rpc_timers nm_timers[NFS_MAX_TIMER]; /* RTT Timers for rpcs */ char nm_principal[MNAMELEN]; /* GSS-API principal of server */ gss_OID nm_mech_oid; /* OID of selected GSS-API mechanism */ + int nm_nametimeo; /* timeout for +ve entries (sec) */ int nm_negnametimeo; /* timeout for -ve entries (sec) */ /* NFSv4 */ @@ -116,6 +117,10 @@ struct nfsmount { #define NFS_TPRINTF_DELAY 30 #endif +#ifndef NFS_DEFAULT_NAMETIMEO +#define NFS_DEFAULT_NAMETIMEO 60 +#endif + #ifndef NFS_DEFAULT_NEGNAMETIMEO #define NFS_DEFAULT_NEGNAMETIMEO 60 #endif |
