diff options
| 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/fs/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/fs/nfsclient/nfsmount.h')
| -rw-r--r-- | sys/fs/nfsclient/nfsmount.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sys/fs/nfsclient/nfsmount.h b/sys/fs/nfsclient/nfsmount.h index b62a430..8068c28 100644 --- a/sys/fs/nfsclient/nfsmount.h +++ b/sys/fs/nfsclient/nfsmount.h @@ -66,6 +66,7 @@ struct nfsmount { u_int64_t nm_maxfilesize; /* maximum file size */ int nm_tprintf_initial_delay; /* initial delay */ int nm_tprintf_delay; /* interval for messages */ + int nm_nametimeo; /* timeout for +ve entries (sec) */ int nm_negnametimeo; /* timeout for -ve entries (sec) */ /* Newnfs additions */ @@ -106,6 +107,10 @@ struct nfsmount { */ #define VFSTONFS(mp) ((struct nfsmount *)((mp)->mnt_data)) +#ifndef NFS_DEFAULT_NAMETIMEO +#define NFS_DEFAULT_NAMETIMEO 60 +#endif + #ifndef NFS_DEFAULT_NEGNAMETIMEO #define NFS_DEFAULT_NEGNAMETIMEO 60 #endif |
