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-rw-r--r--fs/ceph/export.c19
-rw-r--r--include/linux/ceph/ceph_fs.h1
2 files changed, 18 insertions, 2 deletions
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index e410561..f1828af 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -86,6 +86,7 @@ static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len,
static struct dentry *__fh_to_dentry(struct super_block *sb,
struct ceph_nfs_fh *fh)
{
+ struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
struct inode *inode;
struct dentry *dentry;
struct ceph_vino vino;
@@ -95,8 +96,22 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
vino.ino = fh->ino;
vino.snap = CEPH_NOSNAP;
inode = ceph_find_inode(sb, vino);
- if (!inode)
- return ERR_PTR(-ESTALE);
+ if (!inode) {
+ struct ceph_mds_request *req;
+
+ req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_LOOKUPINO,
+ USE_ANY_MDS);
+ if (IS_ERR(req))
+ return ERR_CAST(req);
+
+ req->r_ino1 = vino;
+ req->r_num_caps = 1;
+ err = ceph_mdsc_do_request(mdsc, NULL, req);
+ ceph_mdsc_put_request(req);
+ inode = ceph_find_inode(sb, vino);
+ if (!inode)
+ return ERR_PTR(-ESTALE);
+ }
dentry = d_obtain_alias(inode);
if (IS_ERR(dentry)) {
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index b8e995f..b8c6069 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -313,6 +313,7 @@ enum {
CEPH_MDS_OP_GETATTR = 0x00101,
CEPH_MDS_OP_LOOKUPHASH = 0x00102,
CEPH_MDS_OP_LOOKUPPARENT = 0x00103,
+ CEPH_MDS_OP_LOOKUPINO = 0x00104,
CEPH_MDS_OP_SETXATTR = 0x01105,
CEPH_MDS_OP_RMXATTR = 0x01106,
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