diff options
Diffstat (limited to 'xlators/storage/bd/src/bd.h')
| -rw-r--r-- | xlators/storage/bd/src/bd.h | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/xlators/storage/bd/src/bd.h b/xlators/storage/bd/src/bd.h deleted file mode 100644 index f73781a0fe6..00000000000 --- a/xlators/storage/bd/src/bd.h +++ /dev/null @@ -1,189 +0,0 @@ -/* - BD translator - Exports Block devices on server side as regular - files to client - - Copyright IBM, Corp. 2012 - - This file is part of GlusterFS. - - Author: - M. Mohan Kumar <mohan@in.ibm.com> - - This file is licensed to you under your choice of the GNU Lesser - General Public License, version 3 or any later version (LGPLv3 or - later), or the GNU General Public License, version 2 (GPLv2), in all - cases as published by the Free Software Foundation. -*/ - -#ifndef _BD_H -#define _BD_H - -#ifdef HAVE_LIBAIO -#include <libaio.h> -#endif - -#include <glusterfs/xlator.h> -#include <glusterfs/mem-types.h> - -#define BD_XLATOR "block device mapper xlator" -#define BACKEND_VG "vg" -#define GF_XATTR "user.glusterfs" -#define BD_XATTR GF_XATTR ".bd" - -#define BD_LV "lv" -#define BD_THIN "thin" - -#define VOL_TYPE "volume.type" -#define VOL_CAPS "volume.caps" - -#define ALIGN_SIZE 4096 - -#define BD_CAPS_BD 0x01 -#define BD_CAPS_THIN 0x02 -#define BD_CAPS_OFFLOAD_COPY 0x04 -#define BD_CAPS_OFFLOAD_SNAPSHOT 0x08 -#define BD_CAPS_OFFLOAD_ZERO 0x20 - -#define BD_CLONE "clone" -#define BD_SNAPSHOT "snapshot" -#define BD_MERGE "merge" -#define BD_ORIGIN "list-origin" - -#define IOV_NR 4 -#define IOV_SIZE (64 * 1024) - -#define ALIGN_SIZE 4096 -#define LINKTO "trusted.glusterfs.dht.linkto" - -#define MAX_NO_VECT 1024 - -#define BD_VALIDATE_MEM_ALLOC(buff, op_errno, label) \ - if (!buff) { \ - op_errno = ENOMEM; \ - gf_log(this->name, GF_LOG_ERROR, "out of memory"); \ - goto label; \ - } - -#define BD_VALIDATE_LOCAL_OR_GOTO(local, op_errno, label) \ - if (!local) { \ - op_errno = EINVAL; \ - goto label; \ - } - -#define BD_STACK_UNWIND(typ, frame, args...) \ - do { \ - bd_local_t *__local = frame->local; \ - xlator_t *__this = frame->this; \ - \ - frame->local = NULL; \ - STACK_UNWIND_STRICT(typ, frame, args); \ - if (__local) \ - bd_local_free(__this, __local); \ - } while (0) - -typedef char bd_gfid_t[GF_UUID_BUF_SIZE]; - -/** - * bd_fd - internal structure - */ -typedef struct bd_fd { - int fd; - int32_t flag; - int odirect; -} bd_fd_t; - -typedef struct bd_priv { - lvm_t handle; - char *vg; - char *pool; - int caps; - gf_boolean_t aio_init_done; - gf_boolean_t aio_capable; - gf_boolean_t aio_configured; -#ifdef HAVE_LIBAIO - io_context_t ctxp; - pthread_t aiothread; -#endif -} bd_priv_t; - -typedef enum bd_type { - BD_TYPE_NONE, - BD_TYPE_LV, -} bd_type_t; - -typedef struct { - struct iatt iatt; - char *type; -} bd_attr_t; - -typedef enum { - BD_OF_NONE, - BD_OF_CLONE, - BD_OF_SNAPSHOT, - BD_OF_MERGE, -} bd_offload_t; - -typedef struct { - dict_t *dict; - bd_attr_t *bdatt; - inode_t *inode; - loc_t loc; - fd_t *fd; - data_t *data; /* for setxattr */ - bd_offload_t offload; - uint64_t size; - loc_t *dloc; -} bd_local_t; - -/* Prototypes */ -int -bd_inode_ctx_set(inode_t *inode, xlator_t *this, bd_attr_t *ctx); -int -bd_inode_ctx_get(inode_t *inode, xlator_t *this, bd_attr_t **ctx); -int -bd_scan_vg(xlator_t *this, bd_priv_t *priv); -bd_local_t * -bd_local_init(call_frame_t *frame, xlator_t *this); -void -bd_local_free(xlator_t *this, bd_local_t *local); -int -bd_fd_ctx_get(xlator_t *this, fd_t *fd, bd_fd_t **bdfd); -char * -page_aligned_alloc(size_t size, char **aligned_buf); -int -bd_validate_bd_xattr(xlator_t *this, char *bd, char **type, uint64_t *lv_size, - uuid_t uuid); -uint64_t -bd_get_default_extent(bd_priv_t *priv); -uint64_t -bd_adjust_size(bd_priv_t *priv, size_t size); -int -bd_create(uuid_t uuid, uint64_t size, char *type, bd_priv_t *priv); -int -bd_resize(bd_priv_t *priv, uuid_t uuid, size_t size); -int -bd_delete_lv(bd_priv_t *priv, const char *lv_name, int *op_errno); -int -bd_snapshot_create(bd_local_t *local, bd_priv_t *priv); -int -bd_clone(bd_local_t *local, bd_priv_t *priv); - -int -bd_merge(bd_priv_t *priv, uuid_t gfid); -int -bd_get_origin(bd_priv_t *priv, loc_t *loc, fd_t *fd, dict_t *dict); -void -bd_update_amtime(struct iatt *iatt, int flag); -int -bd_snapshot_create(bd_local_t *local, bd_priv_t *priv); -int -bd_clone(bd_local_t *local, bd_priv_t *priv); -int -bd_merge(bd_priv_t *priv, uuid_t gfid); -int -bd_get_origin(bd_priv_t *priv, loc_t *loc, fd_t *fd, dict_t *dict); -int -bd_do_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, - size_t len, struct iatt *prebuf, struct iatt *postbuf); - -#endif |