diff options
| author | NeilBrown <neilb@suse.de> | 2007-02-14 00:33:12 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-14 08:09:53 -0800 |
| commit | af6a4e280e3ff453653f39190b57b345ff0bec16 (patch) | |
| tree | 4895c90613737db7354f43431ed10a55dc0c98f0 /include/linux/nfsd/export.h | |
| parent | 982aedfd091e6d9831216f8519f12242091be4fd (diff) | |
[PATCH] knfsd: add some new fsid types
Add support for using a filesystem UUID to identify and export point in the
filehandle.
For NFSv2, this UUID is xor-ed down to 4 or 8 bytes so that it doesn't take up
too much room. For NFSv3+, we use the full 16 bytes, and possibly also a
64bit inode number for exports beneath the root of a filesystem.
When generating an fsid to return in 'stat' information, use the UUID (hashed
down to size) if it is available and a small 'fsid' was not specifically
provided.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/nfsd/export.h')
| -rw-r--r-- | include/linux/nfsd/export.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h index 045e38cdbe6..9f62d6182d3 100644 --- a/include/linux/nfsd/export.h +++ b/include/linux/nfsd/export.h @@ -74,19 +74,20 @@ struct svc_export { uid_t ex_anon_uid; gid_t ex_anon_gid; int ex_fsid; + unsigned char * ex_uuid; /* 16 byte fsid */ struct nfsd4_fs_locations ex_fslocs; }; /* an "export key" (expkey) maps a filehandlefragement to an - * svc_export for a given client. There can be two per export, one - * for type 0 (dev/ino), one for type 1 (fsid) + * svc_export for a given client. There can be several per export, + * for the different fsid types. */ struct svc_expkey { struct cache_head h; struct auth_domain * ek_client; int ek_fsidtype; - u32 ek_fsid[3]; + u32 ek_fsid[6]; struct vfsmount * ek_mnt; struct dentry * ek_dentry; |