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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-07-15 17:58:13 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-10-07 17:22:20 -0400 |
| commit | 4eec952e42314b53e48fef1f54dd89cbf9789734 (patch) | |
| tree | 6c0e407472224954987021a815036fe561f88c5a /include/linux/nfs_mount.h | |
| parent | 1daef0a868370c5a96d031b9202e3354bea060e6 (diff) | |
| download | linux-stable-4eec952e42314b53e48fef1f54dd89cbf9789734.tar.gz linux-stable-4eec952e42314b53e48fef1f54dd89cbf9789734.tar.bz2 linux-stable-4eec952e42314b53e48fef1f54dd89cbf9789734.zip | |
NFS: Add options for finer control of the lookup cache
Add the flag NFS_MOUNT_LOOKUP_CACHE_NONEG to turn off the caching of
negative dentries. In reality what we do is to force
nfs_lookup_revalidate() to always discard negative dentries.
Add the flag NFS_MOUNT_LOOKUP_CACHE_NONE for enforcing stricter
revalidation of dentries. It forces the revalidate code to always do a
lookup instead of just checking the cached mtime of the parent directory.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_mount.h')
| -rw-r--r-- | include/linux/nfs_mount.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/nfs_mount.h b/include/linux/nfs_mount.h index df7c6b7a7ebb..6549a06ac16e 100644 --- a/include/linux/nfs_mount.h +++ b/include/linux/nfs_mount.h @@ -65,4 +65,8 @@ struct nfs_mount_data { #define NFS_MOUNT_UNSHARED 0x8000 /* 5 */ #define NFS_MOUNT_FLAGMASK 0xFFFF +/* The following are for internal use only */ +#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000 +#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000 + #endif |