diff options
Diffstat (limited to 'fs/ceph/inode.c')
| -rw-r--r-- | fs/ceph/inode.c | 53 |
1 files changed, 28 insertions, 25 deletions
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 220dfd87cbfa..373dab5173ca 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -52,7 +52,7 @@ struct inode *ceph_get_inode(struct super_block *sb, struct ceph_vino vino) ino_t t = ceph_vino_to_ino(vino); inode = iget5_locked(sb, t, ceph_ino_compare, ceph_set_ino_cb, &vino); - if (inode == NULL) + if (!inode) return ERR_PTR(-ENOMEM); if (inode->i_state & I_NEW) { dout("get_inode created new inode %p %llx.%llx ino %llx\n", @@ -133,12 +133,9 @@ static struct ceph_inode_frag *__get_or_create_frag(struct ceph_inode_info *ci, } frag = kmalloc(sizeof(*frag), GFP_NOFS); - if (!frag) { - pr_err("__get_or_create_frag ENOMEM on %p %llx.%llx " - "frag %x\n", &ci->vfs_inode, - ceph_vinop(&ci->vfs_inode), f); + if (!frag) return ERR_PTR(-ENOMEM); - } + frag->frag = f; frag->split_by = 0; frag->mds = -1; @@ -1070,7 +1067,6 @@ out_unlock: spin_unlock(&dentry->d_lock); if (old_lease_session) ceph_put_mds_session(old_lease_session); - return; } /* @@ -1177,7 +1173,7 @@ retry_lookup: dn = d_alloc(parent, &dname); dout("d_alloc %p '%.*s' = %p\n", parent, dname.len, dname.name, dn); - if (dn == NULL) { + if (!dn) { dput(parent); err = -ENOMEM; goto done; @@ -1477,7 +1473,6 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, struct dentry *dn; struct inode *in; int err = 0, skipped = 0, ret, i; - struct inode *snapdir = NULL; struct ceph_mds_request_head *rhead = req->r_request->front.iov_base; u32 frag = le32_to_cpu(rhead->args.readdir.frag); u32 last_hash = 0; @@ -1510,8 +1505,6 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, } if (le32_to_cpu(rinfo->head->op) == CEPH_MDS_OP_LSSNAP) { - snapdir = ceph_get_snapdir(d_inode(parent)); - parent = d_find_alias(snapdir); dout("readdir_prepopulate %d items under SNAPDIR dn %p\n", rinfo->dir_nr, parent); } else { @@ -1519,15 +1512,18 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req, rinfo->dir_nr, parent); if (rinfo->dir_dir) ceph_fill_dirfrag(d_inode(parent), rinfo->dir_dir); - } - if (ceph_frag_is_leftmost(frag) && req->r_readdir_offset == 2 && - !(rinfo->hash_order && last_hash)) { - /* note dir version at start of readdir so we can tell - * if any dentries get dropped */ - req->r_dir_release_cnt = atomic64_read(&ci->i_release_count); - req->r_dir_ordered_cnt = atomic64_read(&ci->i_ordered_count); - req->r_readdir_cache_idx = 0; + if (ceph_frag_is_leftmost(frag) && + req->r_readdir_offset == 2 && + !(rinfo->hash_order && last_hash)) { + /* note dir version at start of readdir so we can + * tell if any dentries get dropped */ + req->r_dir_release_cnt = + atomic64_read(&ci->i_release_count); + req->r_dir_ordered_cnt = + atomic64_read(&ci->i_ordered_count); + req->r_readdir_cache_idx = 0; + } } cache_ctl.index = req->r_readdir_cache_idx; @@ -1566,7 +1562,7 @@ retry_lookup: dn = d_alloc(parent, &dname); dout("d_alloc %p '%.*s' = %p\n", parent, dname.len, dname.name, dn); - if (dn == NULL) { + if (!dn) { dout("d_alloc badness\n"); err = -ENOMEM; goto out; @@ -1650,10 +1646,6 @@ out: req->r_readdir_cache_idx = cache_ctl.index; } ceph_readdir_cache_release(&cache_ctl); - if (snapdir) { - iput(snapdir); - dput(parent); - } dout("readdir_prepopulate done\n"); return err; } @@ -1841,9 +1833,20 @@ retry: * possibly truncate them.. so write AND block! */ if (ci->i_wrbuffer_ref_head < ci->i_wrbuffer_ref) { + struct ceph_cap_snap *capsnap; + to = ci->i_truncate_size; + list_for_each_entry(capsnap, &ci->i_cap_snaps, ci_item) { + // MDS should have revoked Frw caps + WARN_ON_ONCE(capsnap->writing); + if (capsnap->dirty_pages && capsnap->size > to) + to = capsnap->size; + } + spin_unlock(&ci->i_ceph_lock); dout("__do_pending_vmtruncate %p flushing snaps first\n", inode); - spin_unlock(&ci->i_ceph_lock); + + truncate_pagecache(inode, to); + filemap_write_and_wait_range(&inode->i_data, 0, inode->i_sb->s_maxbytes); goto retry; |