diff options
Diffstat (limited to 'xlators/cluster/dht/src/dht-common.h')
| -rw-r--r-- | xlators/cluster/dht/src/dht-common.h | 413 |
1 files changed, 331 insertions, 82 deletions
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h index 95d1b1d6a..ab1b82af2 100644 --- a/xlators/cluster/dht/src/dht-common.h +++ b/xlators/cluster/dht/src/dht-common.h @@ -29,45 +29,61 @@ #ifndef _DHT_H #define _DHT_H -#define GF_XATTR_FIX_LAYOUT_KEY "trusted.distribute.fix.layout" +#define GF_XATTR_FIX_LAYOUT_KEY "trusted.distribute.fix.layout" #define GF_DHT_LOOKUP_UNHASHED_ON 1 #define GF_DHT_LOOKUP_UNHASHED_AUTO 2 -#define DHT_PATHINFO_HEADER "DISTRIBUTE:" +#define DHT_PATHINFO_HEADER "DISTRIBUTE:" #include <fnmatch.h> typedef int (*dht_selfheal_dir_cbk_t) (call_frame_t *frame, void *cookie, - xlator_t *this, - int32_t op_ret, int32_t op_errno); + xlator_t *this, + int32_t op_ret, int32_t op_errno); +typedef int (*dht_defrag_cbk_fn_t) (xlator_t *this, call_frame_t *frame, + int ret); struct dht_layout { - int spread_cnt; /* layout spread count per directory, - is controlled by 'setxattr()' with - special key */ - int cnt; - int preset; - int gen; - int type; - int ref; /* use with dht_conf_t->layout_lock */ - int search_unhashed; + int spread_cnt; /* layout spread count per directory, + is controlled by 'setxattr()' with + special key */ + int cnt; + int preset; + int gen; + int type; + int ref; /* use with dht_conf_t->layout_lock */ + int search_unhashed; struct { - int err; /* 0 = normal - -1 = dir exists and no xattr - >0 = dir lookup failed with errno - */ - uint32_t start; - uint32_t stop; - xlator_t *xlator; + int err; /* 0 = normal + -1 = dir exists and no xattr + >0 = dir lookup failed with errno + */ + uint32_t start; + uint32_t stop; + xlator_t *xlator; } list[0]; }; -typedef struct dht_layout dht_layout_t; +typedef struct dht_layout dht_layout_t; typedef enum { DHT_HASH_TYPE_DM, } dht_hashfn_type_t; +/* rebalance related */ +struct dht_rebalance_ { + xlator_t *from_subvol; + xlator_t *target_node; + int32_t wbflags; + off_t offset; + size_t size; + int32_t flags; + int count; + struct iobref *iobref; + struct iovec *vector; + struct iatt stbuf; + dht_defrag_cbk_fn_t target_op_fn; +}; struct dht_local { int call_cnt; @@ -140,11 +156,12 @@ struct dht_local { /* flag used to make sure we need to return estale in {lookup,revalidate}_cbk */ - char return_estale; + char return_estale; + char need_lookup_everywhere; - /* rebalance related */ -#define to_subvol hashed_subvol -#define from_subvol cached_subvol + glusterfs_fop_t fop; + + struct dht_rebalance_ rebalance; }; typedef struct dht_local dht_local_t; @@ -209,11 +226,21 @@ typedef struct dht_disk_layout dht_disk_layout_t; #define is_last_call(cnt) (cnt == 0) -#define DHT_LINKFILE_MODE (S_ISVTX) +#define DHT_MIGRATION_IN_PROGRESS 1 +#define DHT_MIGRATION_COMPLETED 2 + +#define DHT_LINKFILE_KEY "trusted.glusterfs.dht.linkto" +#define DHT_LINKFILE_MODE (S_ISVTX) + #define check_is_linkfile(i,s,x) ( \ ((st_mode_from_ia (s->ia_prot, s->ia_type) & ~S_IFMT) \ == DHT_LINKFILE_MODE) && \ - (s->ia_size == 0)) + dict_get (x, DHT_LINKFILE_KEY)) + +#define check_is_linkfile_wo_dict(i,s) ( \ + ((st_mode_from_ia (s->ia_prot, s->ia_type) & ~S_IFMT) \ + == DHT_LINKFILE_MODE)) + #define check_is_dir(i,s,x) (IA_ISDIR(s->ia_type)) @@ -221,85 +248,86 @@ typedef struct dht_disk_layout dht_disk_layout_t; #define DHT_STACK_UNWIND(fop, frame, params ...) do { \ dht_local_t *__local = NULL; \ - xlator_t *__xl = NULL; \ + xlator_t *__xl = NULL; \ if (frame) { \ - __xl = frame->this; \ - __local = frame->local; \ + __xl = frame->this; \ + __local = frame->local; \ frame->local = NULL; \ } \ STACK_UNWIND_STRICT (fop, frame, params); \ dht_local_wipe (__xl, __local); \ } while (0) -#define DHT_STACK_DESTROY(frame) do { \ - dht_local_t *__local = NULL; \ - xlator_t *__xl = NULL; \ - __xl = frame->this; \ - __local = frame->local; \ - frame->local = NULL; \ - STACK_DESTROY (frame->root); \ - dht_local_wipe (__xl, __local); \ +#define DHT_STACK_DESTROY(frame) do { \ + dht_local_t *__local = NULL; \ + xlator_t *__xl = NULL; \ + __xl = frame->this; \ + __local = frame->local; \ + frame->local = NULL; \ + STACK_DESTROY (frame->root); \ + dht_local_wipe (__xl, __local); \ } while (0) -dht_layout_t *dht_layout_new (xlator_t *this, int cnt); -dht_layout_t *dht_layout_get (xlator_t *this, inode_t *inode); -dht_layout_t *dht_layout_for_subvol (xlator_t *this, xlator_t *subvol); -xlator_t *dht_layout_search (xlator_t *this, dht_layout_t *layout, +dht_layout_t *dht_layout_new (xlator_t *this, int cnt); +dht_layout_t *dht_layout_get (xlator_t *this, inode_t *inode); +dht_layout_t *dht_layout_for_subvol (xlator_t *this, xlator_t *subvol); +xlator_t *dht_layout_search (xlator_t *this, dht_layout_t *layout, const char *name); -int dht_layout_normalize (xlator_t *this, loc_t *loc, dht_layout_t *layout); -int dht_layout_anomalies (xlator_t *this, loc_t *loc, dht_layout_t *layout, - uint32_t *holes_p, uint32_t *overlaps_p, - uint32_t *missing_p, uint32_t *down_p, - uint32_t *misc_p); -int dht_layout_dir_mismatch (xlator_t *this, dht_layout_t *layout, - xlator_t *subvol, loc_t *loc, dict_t *xattr); +int dht_layout_normalize (xlator_t *this, loc_t *loc, dht_layout_t *layout); +int dht_layout_anomalies (xlator_t *this, loc_t *loc, dht_layout_t *layout, + uint32_t *holes_p, uint32_t *overlaps_p, + uint32_t *missing_p, uint32_t *down_p, + uint32_t *misc_p); +int dht_layout_dir_mismatch (xlator_t *this, dht_layout_t *layout, + xlator_t *subvol, loc_t *loc, dict_t *xattr); xlator_t *dht_linkfile_subvol (xlator_t *this, inode_t *inode, struct iatt *buf, dict_t *xattr); -int dht_linkfile_unlink (call_frame_t *frame, xlator_t *this, - xlator_t *subvol, loc_t *loc); +int dht_linkfile_unlink (call_frame_t *frame, xlator_t *this, + xlator_t *subvol, loc_t *loc); int dht_layouts_init (xlator_t *this, dht_conf_t *conf); int dht_layout_merge (xlator_t *this, dht_layout_t *layout, xlator_t *subvol, - int op_ret, int op_errno, dict_t *xattr); + int op_ret, int op_errno, dict_t *xattr); int dht_disk_layout_extract (xlator_t *this, dht_layout_t *layout, - int pos, int32_t **disk_layout_p); -int dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout, - int pos, void *disk_layout_raw); + int pos, int32_t **disk_layout_p); +int dht_disk_layout_merge (xlator_t *this, dht_layout_t *layout, + int pos, void *disk_layout_raw); int dht_frame_return (call_frame_t *frame); -int dht_itransform (xlator_t *this, xlator_t *subvol, uint64_t x, uint64_t *y); +int dht_itransform (xlator_t *this, xlator_t *subvol, uint64_t x, uint64_t *y); int dht_deitransform (xlator_t *this, uint64_t y, xlator_t **subvol, uint64_t *x); void dht_local_wipe (xlator_t *this, dht_local_t *local); -dht_local_t *dht_local_init (call_frame_t *frame); -int dht_iatt_merge (xlator_t *this, struct iatt *to, struct iatt *from, - xlator_t *subvol); +dht_local_t *dht_local_init (call_frame_t *frame, loc_t *loc, fd_t *fd, + glusterfs_fop_t fop); +int dht_iatt_merge (xlator_t *this, struct iatt *to, struct iatt *from, + xlator_t *subvol); xlator_t *dht_subvol_get_hashed (xlator_t *this, loc_t *loc); xlator_t *dht_subvol_get_cached (xlator_t *this, inode_t *inode); xlator_t *dht_subvol_next (xlator_t *this, xlator_t *prev); -int dht_subvol_cnt (xlator_t *this, xlator_t *subvol); +int dht_subvol_cnt (xlator_t *this, xlator_t *subvol); int dht_hash_compute (int type, const char *name, uint32_t *hash_p); -int dht_linkfile_create (call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk, - xlator_t *tovol, xlator_t *fromvol, loc_t *loc); -int dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc); -int dht_lookup_everywhere (call_frame_t *frame, xlator_t *this, loc_t *loc); +int dht_linkfile_create (call_frame_t *frame, fop_mknod_cbk_t linkfile_cbk, + xlator_t *tovol, xlator_t *fromvol, loc_t *loc); +int dht_lookup_directory (call_frame_t *frame, xlator_t *this, loc_t *loc); +int dht_lookup_everywhere (call_frame_t *frame, xlator_t *this, loc_t *loc); int -dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk, - loc_t *loc, dht_layout_t *layout); +dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk, + loc_t *loc, dht_layout_t *layout); int dht_selfheal_new_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk, dht_layout_t *layout); int -dht_selfheal_restore (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk, - loc_t *loc, dht_layout_t *layout); +dht_selfheal_restore (call_frame_t *frame, dht_selfheal_dir_cbk_t cbk, + loc_t *loc, dht_layout_t *layout); int dht_layout_sort_volname (dht_layout_t *layout); @@ -308,31 +336,252 @@ int dht_rename (call_frame_t *frame, xlator_t *this, int dht_get_du_info (call_frame_t *frame, xlator_t *this, loc_t *loc); -int dht_is_subvol_filled (xlator_t *this, xlator_t *subvol); +int dht_is_subvol_filled (xlator_t *this, xlator_t *subvol); xlator_t *dht_free_disk_available_subvol (xlator_t *this, xlator_t *subvol); -int dht_get_du_info_for_subvol (xlator_t *this, int subvol_idx); +int dht_get_du_info_for_subvol (xlator_t *this, int subvol_idx); int dht_layout_preset (xlator_t *this, xlator_t *subvol, inode_t *inode); -int dht_layout_set (xlator_t *this, inode_t *inode, dht_layout_t *layout); -void dht_layout_unref (xlator_t *this, dht_layout_t *layout); +int dht_layout_set (xlator_t *this, inode_t *inode, dht_layout_t *layout); +void dht_layout_unref (xlator_t *this, dht_layout_t *layout); dht_layout_t *dht_layout_ref (xlator_t *this, dht_layout_t *layout); -xlator_t *dht_first_up_subvol (xlator_t *this); -xlator_t *dht_last_up_subvol (xlator_t *this); +xlator_t *dht_first_up_subvol (xlator_t *this); +xlator_t *dht_last_up_subvol (xlator_t *this); int dht_build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name); -int dht_filter_loc_subvol_key (xlator_t *this, loc_t *loc, loc_t *new_loc, +int dht_filter_loc_subvol_key (xlator_t *this, loc_t *loc, loc_t *new_loc, xlator_t **subvol); -int dht_rename_cleanup (call_frame_t *frame); +int dht_rename_cleanup (call_frame_t *frame); int dht_rename_links_cbk (call_frame_t *frame, void *cookie, xlator_t *this, - int32_t op_ret, int32_t op_errno, - inode_t *inode, struct iatt *stbuf, - struct iatt *preparent, struct iatt *postparent); + int32_t op_ret, int32_t op_errno, + inode_t *inode, struct iatt *stbuf, + struct iatt *preparent, struct iatt *postparent); int dht_fix_directory_layout (call_frame_t *frame, - dht_selfheal_dir_cbk_t dir_cbk, - dht_layout_t *layout); + dht_selfheal_dir_cbk_t dir_cbk, + dht_layout_t *layout); +int dht_init_subvolumes (xlator_t *this, dht_conf_t *conf); + +/* migration/rebalance */ int dht_start_rebalance_task (xlator_t *this, call_frame_t *frame); -#endif /* _DHT_H */ + +int dht_rebalance_in_progress_check (xlator_t *this, call_frame_t *frame); +int dht_rebalance_complete_check (xlator_t *this, call_frame_t *frame); + + +/* FOPS */ +int32_t dht_lookup (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + dict_t *xattr_req); + +int32_t dht_stat (call_frame_t *frame, + xlator_t *this, + loc_t *loc); + +int32_t dht_fstat (call_frame_t *frame, + xlator_t *this, + fd_t *fd); + +int32_t dht_truncate (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + off_t offset); + +int32_t dht_ftruncate (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + off_t offset); + +int32_t dht_access (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + int32_t mask); + +int32_t dht_readlink (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + size_t size); + +int32_t dht_mknod (call_frame_t *frame, xlator_t *this, + loc_t *loc, mode_t mode, dev_t rdev, dict_t *params); + +int32_t dht_mkdir (call_frame_t *frame, xlator_t *this, + loc_t *loc, mode_t mode, dict_t *params); + +int32_t dht_unlink (call_frame_t *frame, + xlator_t *this, + loc_t *loc); + +int32_t dht_rmdir (call_frame_t *frame, xlator_t *this, + loc_t *loc, int flags); + +int32_t dht_symlink (call_frame_t *frame, xlator_t *this, + const char *linkpath, loc_t *loc, dict_t *params); + +int32_t dht_rename (call_frame_t *frame, + xlator_t *this, + loc_t *oldloc, + loc_t *newloc); + +int32_t dht_link (call_frame_t *frame, + xlator_t *this, + loc_t *oldloc, + loc_t *newloc); + +int32_t dht_create (call_frame_t *frame, xlator_t *this, + loc_t *loc, int32_t flags, mode_t mode, + fd_t *fd, dict_t *params); + +int32_t dht_open (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + int32_t flags, fd_t *fd, + int32_t wbflags); + +int32_t dht_readv (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + size_t size, + off_t offset); + +int32_t dht_writev (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + struct iovec *vector, + int32_t count, + off_t offset, + struct iobref *iobref); + +int32_t dht_flush (call_frame_t *frame, + xlator_t *this, + fd_t *fd); + +int32_t dht_fsync (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t datasync); + +int32_t dht_opendir (call_frame_t *frame, + xlator_t *this, + loc_t *loc, fd_t *fd); + +int32_t dht_fsyncdir (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t datasync); + +int32_t dht_statfs (call_frame_t *frame, + xlator_t *this, + loc_t *loc); + +int32_t dht_setxattr (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + dict_t *dict, + int32_t flags); + +int32_t dht_getxattr (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + const char *name); + +int32_t dht_fsetxattr (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + dict_t *dict, + int32_t flags); + +int32_t dht_fgetxattr (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + const char *name); + +int32_t dht_removexattr (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + const char *name); + +int32_t dht_lk (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + int32_t cmd, + struct gf_flock *flock); + +int32_t dht_inodelk (call_frame_t *frame, xlator_t *this, + const char *volume, loc_t *loc, int32_t cmd, + struct gf_flock *flock); + +int32_t dht_finodelk (call_frame_t *frame, xlator_t *this, + const char *volume, fd_t *fd, int32_t cmd, + struct gf_flock *flock); + +int32_t dht_entrylk (call_frame_t *frame, xlator_t *this, + const char *volume, loc_t *loc, const char *basename, + entrylk_cmd cmd, entrylk_type type); + +int32_t dht_fentrylk (call_frame_t *frame, xlator_t *this, + const char *volume, fd_t *fd, const char *basename, + entrylk_cmd cmd, entrylk_type type); + +int32_t dht_readdir (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + size_t size, off_t off); + +int32_t dht_readdirp (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + size_t size, off_t off); + +int32_t dht_xattrop (call_frame_t *frame, + xlator_t *this, + loc_t *loc, + gf_xattrop_flags_t flags, + dict_t *dict); + +int32_t dht_fxattrop (call_frame_t *frame, + xlator_t *this, + fd_t *fd, + gf_xattrop_flags_t flags, + dict_t *dict); + +int32_t dht_forget (xlator_t *this, inode_t *inode); +int32_t dht_setattr (call_frame_t *frame, xlator_t *this, loc_t *loc, + struct iatt *stbuf, int32_t valid); +int32_t dht_fsetattr (call_frame_t *frame, xlator_t *this, fd_t *fd, + struct iatt *stbuf, int32_t valid); + +int32_t dht_notify (xlator_t *this, int32_t event, void *data, ...); + +/* definitions for nufa/switch */ +int dht_revalidate_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, inode_t *inode, + struct iatt *stbuf, dict_t *xattr, + struct iatt *postparent); +int dht_lookup_dir_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, inode_t *inode, + struct iatt *stbuf, dict_t *xattr, + struct iatt *postparent); +int dht_lookup_linkfile_cbk (call_frame_t *frame, void *cookie, + xlator_t *this, int op_ret, int op_errno, + inode_t *inode, struct iatt *stbuf, dict_t *xattr, + struct iatt *postparent); +int dht_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, + inode_t *inode, struct iatt *stbuf, dict_t *xattr, + struct iatt *postparent); +int dht_create_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, + fd_t *fd, inode_t *inode, struct iatt *stbuf, + struct iatt *preparent, struct iatt *postparent); +int dht_newfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this, + int op_ret, int op_errno, + inode_t *inode, struct iatt *stbuf, struct iatt *preparent, + struct iatt *postparent); + + + +#endif/* _DHT_H */ |