*/
if (ci->i_snap_realm) {
struct ceph_mds_client *mdsc =
- ceph_sb_to_client(ci->vfs_inode.i_sb)->mdsc;
- struct ceph_snap_realm *realm = ci->i_snap_realm;
-
- dout(" dropping residual ref to snap realm %p\n", realm);
- spin_lock(&realm->inodes_with_caps_lock);
- list_del_init(&ci->i_snap_realm_item);
- ci->i_snap_realm = NULL;
- if (realm->ino == ci->i_vino.ino)
- realm->inode = NULL;
- spin_unlock(&realm->inodes_with_caps_lock);
- ceph_put_snap_realm(mdsc, realm);
+ ceph_inode_to_client(inode)->mdsc;
+ if (ceph_snap(inode) == CEPH_NOSNAP) {
+ struct ceph_snap_realm *realm = ci->i_snap_realm;
+ dout(" dropping residual ref to snap realm %p\n",
+ realm);
+ spin_lock(&realm->inodes_with_caps_lock);
+ list_del_init(&ci->i_snap_realm_item);
+ ci->i_snap_realm = NULL;
+ if (realm->ino == ci->i_vino.ino)
+ realm->inode = NULL;
+ spin_unlock(&realm->inodes_with_caps_lock);
+ ceph_put_snap_realm(mdsc, realm);
+ } else {
+ ceph_put_snapid_map(mdsc, ci->i_snapid_map);
+ ci->i_snap_realm = NULL;
+ }
}
kfree(ci->i_symlink);
pool_ns = ceph_find_or_create_string(iinfo->pool_ns_data,
iinfo->pool_ns_len);
+ if (ceph_snap(inode) != CEPH_NOSNAP && !ci->i_snapid_map)
+ ci->i_snapid_map = ceph_get_snapid_map(mdsc, ceph_snap(inode));
+
spin_lock(&ci->i_ceph_lock);
/*
ci->i_rbytes = le64_to_cpu(info->rbytes);
ci->i_rfiles = le64_to_cpu(info->rfiles);
ci->i_rsubdirs = le64_to_cpu(info->rsubdirs);
+ ci->i_dir_pin = iinfo->dir_pin;
ceph_decode_timespec64(&ci->i_rctime, &info->rctime);
}
}
case S_IFBLK:
case S_IFCHR:
case S_IFSOCK:
+ inode->i_blkbits = PAGE_SHIFT;
init_special_inode(inode, inode->i_mode, inode->i_rdev);
inode->i_op = &ceph_file_iops;
break;
* splice a dentry to an inode.
* caller must hold directory i_mutex for this to be safe.
*/
-static struct dentry *splice_dentry(struct dentry *dn, struct inode *in)
+static int splice_dentry(struct dentry **pdn, struct inode *in)
{
+ struct dentry *dn = *pdn;
struct dentry *realdn;
BUG_ON(d_inode(dn));
if (IS_ERR(realdn)) {
pr_err("splice_dentry error %ld %p inode %p ino %llx.%llx\n",
PTR_ERR(realdn), dn, in, ceph_vinop(in));
- dn = realdn;
- /*
- * Caller should release 'dn' in the case of error.
- * If 'req->r_dentry' is passed to this function,
- * caller should leave 'req->r_dentry' untouched.
- */
- goto out;
- } else if (realdn) {
+ return PTR_ERR(realdn);
+ }
+
+ if (realdn) {
dout("dn %p (%d) spliced with %p (%d) "
"inode %p ino %llx.%llx\n",
dn, d_count(dn),
realdn, d_count(realdn),
d_inode(realdn), ceph_vinop(d_inode(realdn)));
dput(dn);
- dn = realdn;
+ *pdn = realdn;
} else {
BUG_ON(!ceph_dentry(dn));
dout("dn %p attached to %p ino %llx.%llx\n",
dn, d_inode(dn), ceph_vinop(d_inode(dn)));
}
-out:
- return dn;
+ return 0;
}
/*
dout("dn %p gets new offset %lld\n", req->r_old_dentry,
ceph_dentry(req->r_old_dentry)->offset);
- dn = req->r_old_dentry; /* use old_dentry */
+ /* swap r_dentry and r_old_dentry in case that
+ * splice_dentry() gets called later. This is safe
+ * because no other place will use them */
+ req->r_dentry = req->r_old_dentry;
+ req->r_old_dentry = dn;
+ dn = req->r_dentry;
}
/* null dentry? */
if (d_really_is_negative(dn)) {
ceph_dir_clear_ordered(dir);
ihold(in);
- dn = splice_dentry(dn, in);
- if (IS_ERR(dn)) {
- err = PTR_ERR(dn);
+ err = splice_dentry(&req->r_dentry, in);
+ if (err < 0)
goto done;
- }
- req->r_dentry = dn; /* may have spliced */
+ dn = req->r_dentry; /* may have spliced */
} else if (d_really_is_positive(dn) && d_inode(dn) != in) {
dout(" %p links to %p %llx.%llx, not %llx.%llx\n",
dn, d_inode(dn), ceph_vinop(d_inode(dn)),
} else if ((req->r_op == CEPH_MDS_OP_LOOKUPSNAP ||
req->r_op == CEPH_MDS_OP_MKSNAP) &&
!test_bit(CEPH_MDS_R_ABORTED, &req->r_req_flags)) {
- struct dentry *dn = req->r_dentry;
struct inode *dir = req->r_parent;
/* fill out a snapdir LOOKUPSNAP dentry */
- BUG_ON(!dn);
BUG_ON(!dir);
BUG_ON(ceph_snap(dir) != CEPH_SNAPDIR);
- dout(" linking snapped dir %p to dn %p\n", in, dn);
+ BUG_ON(!req->r_dentry);
+ dout(" linking snapped dir %p to dn %p\n", in, req->r_dentry);
ceph_dir_clear_ordered(dir);
ihold(in);
- dn = splice_dentry(dn, in);
- if (IS_ERR(dn)) {
- err = PTR_ERR(dn);
+ err = splice_dentry(&req->r_dentry, in);
+ if (err < 0)
goto done;
- }
- req->r_dentry = dn; /* may have spliced */
} else if (rinfo->head->is_dentry) {
struct ceph_vino *ptvino = NULL;
}
if (d_really_is_negative(dn)) {
- struct dentry *realdn;
-
if (ceph_security_xattr_deadlock(in)) {
dout(" skip splicing dn %p to inode %p"
" (security xattr deadlock)\n", dn, in);
goto next_item;
}
- realdn = splice_dentry(dn, in);
- if (IS_ERR(realdn)) {
- err = PTR_ERR(realdn);
- d_drop(dn);
+ err = splice_dentry(&dn, in);
+ if (err < 0)
goto next_item;
- }
- dn = realdn;
}
ceph_dentry(dn)->offset = rde->offset;
err = ret;
}
next_item:
- if (dn)
- dput(dn);
+ dput(dn);
}
out:
if (err == 0 && skipped == 0) {
if (!err) {
generic_fillattr(inode, stat);
stat->ino = ceph_translate_ino(inode->i_sb, inode->i_ino);
- if (ceph_snap(inode) != CEPH_NOSNAP)
- stat->dev = ceph_snap(inode);
+ if (ceph_snap(inode) == CEPH_NOSNAP)
+ stat->dev = inode->i_sb->s_dev;
else
- stat->dev = 0;
+ stat->dev = ci->i_snapid_map ? ci->i_snapid_map->dev : 0;
+
if (S_ISDIR(inode->i_mode)) {
if (ceph_test_mount_opt(ceph_sb_to_client(inode->i_sb),
RBYTES))
projects / linux-2.6-microblaze.git / blobdiff