diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-06-22 15:09:14 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-22 21:28:25 -0700 |
| commit | b88f8a546f5dba213938fdfc11e66bc5c2421623 (patch) | |
| tree | 4048d84046bc47d715651fdd375eabbea065bad6 | |
| parent | 0b75b35c7cad33e7613f5adf28fa10fe8b09b1c3 (diff) | |
NFS: Correct the NFS mount path when following a referral
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/nfs/super.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 8e0673a0d6a..0b4cbdc60ab 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2559,6 +2559,27 @@ static struct vfsmount *nfs_do_root_mount(struct file_system_type *fs_type, return root_mnt; } +static void nfs_fix_devname(const struct path *path, struct vfsmount *mnt) +{ + char *page = (char *) __get_free_page(GFP_KERNEL); + char *devname, *tmp; + + if (page == NULL) + return; + devname = nfs_path(path->mnt->mnt_devname, + path->mnt->mnt_root, path->dentry, + page, PAGE_SIZE); + if (devname == NULL) + goto out_freepage; + tmp = kstrdup(devname, GFP_KERNEL); + if (tmp == NULL) + goto out_freepage; + kfree(mnt->mnt_devname); + mnt->mnt_devname = tmp; +out_freepage: + free_page((unsigned long)page); +} + static int nfs_follow_remote_path(struct vfsmount *root_mnt, const char *export_path, struct vfsmount *mnt_target) { @@ -2585,6 +2606,9 @@ static int nfs_follow_remote_path(struct vfsmount *root_mnt, mnt_target->mnt_sb = s; mnt_target->mnt_root = dget(nd.path.dentry); + /* Correct the device pathname */ + nfs_fix_devname(&nd.path, mnt_target); + path_put(&nd.path); down_write(&s->s_umount); return 0; |