GitHub-Mirror/linux-bl808
2
0
Fork 0
mirror of https://github.com/Fishwaldo/linux-bl808.git synced 2025-06-17 20:25:19 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

NFSv4: Follow a referral

Browse source 
Respond to a moved error on NFS lookup by setting up the referral.
Note: We don't actually follow the referral during lookup/getattr, but
later when we detect fsid mismatch in inode revalidation (similar to the
processing done for cloning submounts). Referrals will have fake attributes
until they are actually followed or traversed.

Signed-off-by: Manoj Naik <manoj@almaden.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Manoj Naik 2006-06-09 09:34:29 -04:00 • committed by Trond Myklebust
parent 9cdb3883c3
commit 6b97fd3da1
5 changed files with 60 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

9
fs/nfs/namespace.c
View file

@ -58,7 +58,10 @@ static void * nfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
if (err != 0)
goto out_err;
mnt = nfs_do_submount(nd->mnt, nd->dentry, &fh, &fattr);
if (fattr.valid & NFS_ATTR_FATTR_V4_REFERRAL)
mnt = nfs_do_refmount(nd->mnt, nd->dentry);
else
mnt = nfs_do_submount(nd->mnt, nd->dentry, &fh, &fattr);
err = PTR_ERR(mnt);
if (IS_ERR(mnt))
goto out_err;
@ -94,6 +97,10 @@ struct inode_operations nfs_mountpoint_inode_operations = {
.getattr = nfs_getattr,
};
struct inode_operations nfs_referral_inode_operations = {
.follow_link = nfs_follow_mountpoint,
};
static void nfs_expire_automounts(void *data)
{
struct list_head *list = (struct list_head *)data;