void ceph_release_acls_info(struct ceph_acls_info *info) { posix_acl_release(info->acl); posix_acl_release(info->default_acl); if (info->pagelist) ceph_pagelist_release(info->pagelist); }
/* * requests */ void ceph_osdc_release_request(struct kref *kref) { struct ceph_osd_request *req = container_of(kref, struct ceph_osd_request, r_kref); if (req->r_request) ceph_msg_put(req->r_request); if (req->r_con_filling_msg) { dout("%s revoking pages %p from con %p\n", __func__, req->r_pages, req->r_con_filling_msg); ceph_msg_revoke_incoming(req->r_reply); req->r_con_filling_msg->ops->put(req->r_con_filling_msg); } if (req->r_reply) ceph_msg_put(req->r_reply); if (req->r_own_pages) ceph_release_page_vector(req->r_pages, req->r_num_pages); #ifdef CONFIG_BLOCK if (req->r_bio) bio_put(req->r_bio); #endif ceph_put_snap_context(req->r_snapc); if (req->r_trail) { ceph_pagelist_release(req->r_trail); kfree(req->r_trail); } if (req->r_mempool) mempool_free(req, req->r_osdc->req_mempool); else kfree(req); }
int ceph_pre_init_acls(struct inode *dir, umode_t *mode, struct ceph_acls_info *info) { struct posix_acl *acl, *default_acl; size_t val_size1 = 0, val_size2 = 0; struct ceph_pagelist *pagelist = NULL; void *tmp_buf = NULL; int err; err = posix_acl_create(dir, mode, &default_acl, &acl); if (err) return err; if (acl) { int ret = posix_acl_equiv_mode(acl, mode); if (ret < 0) goto out_err; if (ret == 0) { posix_acl_release(acl); acl = NULL; } } if (!default_acl && !acl) return 0; if (acl) val_size1 = posix_acl_xattr_size(acl->a_count); if (default_acl) val_size2 = posix_acl_xattr_size(default_acl->a_count); err = -ENOMEM; tmp_buf = kmalloc(max(val_size1, val_size2), GFP_KERNEL); if (!tmp_buf) goto out_err; pagelist = kmalloc(sizeof(struct ceph_pagelist), GFP_KERNEL); if (!pagelist) goto out_err; ceph_pagelist_init(pagelist); err = ceph_pagelist_reserve(pagelist, PAGE_SIZE); if (err) goto out_err; ceph_pagelist_encode_32(pagelist, acl && default_acl ? 2 : 1); if (acl) { size_t len = strlen(XATTR_NAME_POSIX_ACL_ACCESS); err = ceph_pagelist_reserve(pagelist, len + val_size1 + 8); if (err) goto out_err; ceph_pagelist_encode_string(pagelist, XATTR_NAME_POSIX_ACL_ACCESS, len); err = posix_acl_to_xattr(&init_user_ns, acl, tmp_buf, val_size1); if (err < 0) goto out_err; ceph_pagelist_encode_32(pagelist, val_size1); ceph_pagelist_append(pagelist, tmp_buf, val_size1); } if (default_acl) { size_t len = strlen(XATTR_NAME_POSIX_ACL_DEFAULT); err = ceph_pagelist_reserve(pagelist, len + val_size2 + 8); if (err) goto out_err; err = ceph_pagelist_encode_string(pagelist, XATTR_NAME_POSIX_ACL_DEFAULT, len); err = posix_acl_to_xattr(&init_user_ns, default_acl, tmp_buf, val_size2); if (err < 0) goto out_err; ceph_pagelist_encode_32(pagelist, val_size2); ceph_pagelist_append(pagelist, tmp_buf, val_size2); } kfree(tmp_buf); info->acl = acl; info->default_acl = default_acl; info->pagelist = pagelist; return 0; out_err: posix_acl_release(acl); posix_acl_release(default_acl); kfree(tmp_buf); if (pagelist) ceph_pagelist_release(pagelist); return err; }