提交 ae7095a7 编写于 作者: J J. Bruce Fields

nfsd4: helper function for getting mounted_on ino

Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>
上级 3c40794b
......@@ -2014,6 +2014,22 @@ static __be32 fattr_handle_absent_fs(u32 *bmval0, u32 *bmval1, u32 *rdattr_err)
return 0;
}
static int get_parent_attributes(struct svc_export *exp, struct kstat *stat)
{
struct path path = exp->ex_path;
int err;
path_get(&path);
while (follow_up(&path)) {
if (path.dentry != path.mnt->mnt_root)
break;
}
err = vfs_getattr(path.mnt, path.dentry, stat);
path_put(&path);
return err;
}
/*
* Note: @fhp can be NULL; in this case, we might have to compose the filehandle
* ourselves.
......@@ -2430,18 +2446,8 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
* and this is the root of a cross-mounted filesystem.
*/
if (ignore_crossmnt == 0 &&
dentry == exp->ex_path.mnt->mnt_root) {
struct path path = exp->ex_path;
path_get(&path);
while (follow_up(&path)) {
if (path.dentry != path.mnt->mnt_root)
break;
}
err = vfs_getattr(path.mnt, path.dentry, &stat);
path_put(&path);
if (err)
goto out_nfserr;
}
dentry == exp->ex_path.mnt->mnt_root)
get_parent_attributes(exp, &stat);
WRITE64(stat.ino);
}
if (bmval2 & FATTR4_WORD2_SUPPATTR_EXCLCREAT) {
......
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